Community discussions

Search found 203 matches

by marekm
Wed Oct 16, 2019 12:52 pm
Forum: Wireless Networking
Topic: PTMP Wireless Wire Dish?
Replies: 1
Views: 425

Re: PTMP Wireless Wire Dish?

A few degrees is probably too wide, even if it was allowed by the license. If you put two radios close to each other, you need some shielding between them (just like with 5 or 2.4 GHz) - even on extreme channels of the band, there will be co-location interference. I had such experience with a wAP60 ...
by marekm
Tue Oct 08, 2019 6:48 pm
Forum: RouterBOARD hardware
Topic: Does CRS328-24P-4S+RM support 24v passive poe?
Replies: 17
Views: 2746

Re: Does CRS328-24P-4S+RM support 24v passive poe?

I can confirm CRS326-24G-2S+RM works fine powered by PoE from CRS328-24P-4S+RM. But, some power-hungry devices can have issues - one such example so far: Siklu EtherHaul 1200F (licensed 70/80GHz 1Gbps FDX PtP link). It claims to be PoE+ 802.3at compatible but when powered from the CRS328, link was f...
by marekm
Tue Oct 01, 2019 8:15 pm
Forum: Wireless Networking
Topic: wAP 60G experience
Replies: 289
Views: 40424

Re: wAP 60G experience

Just an idea - would it work to put a wAP60G in focus of a satellite dish? aka LDF 60 :)
Need longer range in PtMP - with LHG60 station to wAP60G (x3) AP it is theoretically 800m but for reasonable availability in our weather really more like 500m.
by marekm
Tue Sep 24, 2019 12:55 pm
Forum: Announcements
Topic: Newsletter 91
Replies: 12
Views: 8791

Re: Newsletter 91

Still no CRS318-1Fi-15Fr-2S switches (outdoor, reverse PoE)?
by marekm
Tue Aug 27, 2019 5:27 pm
Forum: SwOS
Topic: Performance Issues with CRS 312-4c+8xg
Replies: 5
Views: 786

Re: Performance Issues with CRS 312-4c+8xg

CRS3xx devices are dual boot - is it running SwOS or RouterOS, and which version?
Is flow control really working? Check Tx/Rx pause frame counters in port statistics on both ends of the link.
Slow CPU would limit traffic in both directions, so I don't think this is the case here.
by marekm
Mon Aug 26, 2019 8:40 pm
Forum: SwOS
Topic: Performance Issues with CRS 312-4c+8xg
Replies: 5
Views: 786

Re: Performance Issues with CRS 312-4c+8xg

Try to enable flow control on the 10Gb link - symptoms suggest the switch has a too small buffer so bursty traffic causes packet loss. With flow control, the switch can tell the server to slow down, effectively moving the queue from the switch (small buffer in the chip) to the server which has much ...
by marekm
Mon Aug 26, 2019 1:48 am
Forum: RouterBOARD hardware
Topic: GPER usage questions
Replies: 31
Views: 3441

Re: GPER usage questions

Does it learn MAC addresses (SVL or IVL?), drop bad frames and add some delay (store and forward), auto-negotiate (possibly different speeds to both ends) like a switch? Or is it a true layer 1 repeater, nothing more? Also, does it allow 802.3af/at PoE detection/classification with the device at the...
by marekm
Fri Aug 23, 2019 12:08 am
Forum: RouterBOARD hardware
Topic: [solved] CRS328-4C-20S-1S+ & CRS317-1G-16S+ internal voltage?
Replies: 4
Views: 1102

Re: [solved] CRS328-4C-20S-1S+ & CRS317-1G-16S+ internal voltage?

The original question was about 48V. Such telecom power systems often have nominal -48V DC, negative voltage (positive ground) in range from 44V (low battery) to 55V (charging voltage, may be temperature-dependent - higher at low temperatures). Most MT devices expect +24V DC (negative ground) so you...
by marekm
Thu Jun 27, 2019 4:10 pm
Forum: Announcements
Topic: MikroTik News June 2019 (Issue #89)
Replies: 38
Views: 10478

Re: MikroTik News June 2019 (Issue #89)

Could the new LtAP be used as GPS-based stratum-1 NTP server? I know previous devices didn't support 1PPS but perhaps you did route that one additional signal from the GPS module to CPU GPIO this time? Or do we still have to use a Raspberry Pi for that?
by marekm
Thu Jun 27, 2019 5:54 am
Forum: General
Topic: # BUG !!! INTERFACE - ETHER - POWER-CYCLE-PING-ADDRESS #
Replies: 14
Views: 3324

Re: # BUG !!! INTERFACE - ETHER - POWER-CYCLE-PING-ADDRESS #

I can confirm on CRS328, both 6.43.16 and 6.44.3 still have this bug (with the shiny new recommended hw-offloaded bridge VLAN setup). Normal ping from command line to the same IP addresses works just fine, but power-cycle-ping reboots the devices periodically as if there was never any response. ARP ...
by marekm
Tue May 21, 2019 7:46 pm
Forum: Announcements
Topic: v6.45beta [testing] is released!
Replies: 305
Views: 71366

Re: v6.45beta [testing] is released!

*) ipv6 - improved system stability when receiving bogus packets;
Which CVE - a new one, or more fixes for the already known ones?
by marekm
Mon Apr 29, 2019 1:09 pm
Forum: General
Topic: Report "Delegated-IPv6-Prefix" attribute for PPPoE
Replies: 200
Views: 39517

Re: Report "Delegated-IPv6-Prefix" attribute for PPPoE

For anyone looking for alternatives (on x86 hardware), VyOS now includes accel-ppp which supports Delegated-IPv6-Prefix.
by marekm
Sun Apr 28, 2019 4:59 pm
Forum: General
Topic: CRS3xx RSTP/MSTP only on some ports
Replies: 0
Views: 202

CRS3xx RSTP/MSTP only on some ports

I'd like to make a ring of a few CRS3xx devices connected by their 10Gb SFP+ ports (over DAC cables , copper SFP+ like S+RJ10, or fiber - depending on distance) which carry multiple VLANs as trunk ports and STP to protect from failure of any single switch (or link between switches). At the same time...
by marekm
Tue Apr 09, 2019 7:28 pm
Forum: RouterBOARD hardware
Topic: MUM Europe 2019: new hardware
Replies: 61
Views: 11979

Re: MUM Europe 2019: new hardware

Any estimate when the outdoor switches with many PoE inputs (CRS318-16Fi-2S) would become available from distributors? Does the F stand for Fast ethernet (not gigabit)? Is the PoE-out port also not gigabit? (so gigabit uplink to LHG60 would need a copper SFP and use PoE-out port only for power) As f...
by marekm
Fri Apr 05, 2019 8:42 pm
Forum: General
Topic: No POE Power Cycle @ hEX POE
Replies: 14
Views: 3462

Re: No POE Power Cycle @ hEX POE

PoE power cycle still not working on OmniTik PoE 5 ac running 6.44.2.
Ticket#2019040522005742
by marekm
Fri Mar 29, 2019 2:30 pm
Forum: Announcements
Topic: v6.45beta [testing] is released!
Replies: 305
Views: 71366

Re: v6.45beta [testing] is released!

The two posts were written at about the same time. I guess there will be another beta to test soon...
by marekm
Fri Mar 29, 2019 1:43 pm
Forum: Announcements
Topic: v6.45beta [testing] is released!
Replies: 305
Views: 71366

Re: v6.45beta [testing] is released!

What's new in 6.45beta22 (2019-Mar-29 08:37): !) ipv6 - fixed soft lockup when forwarding IPv6 packets (CVE-2018-19299); !) ipv6 - fixed soft lockup when processing large IPv6 Neighbor table (CVE-2018-19298); *) w60g - prefer AP with strongest signal when multiple APs with same SSID present; 1. ipv...
by marekm
Thu Mar 28, 2019 10:30 pm
Forum: General
Topic: Report "Delegated-IPv6-Prefix" attribute for PPPoE
Replies: 200
Views: 39517

Re: Report "Delegated-IPv6-Prefix" attribute for PPPoE

On a positive side, lack of this feature may have kept many people safe from this soon to be disclosed vulnerability: https://forum.mikrotik.com/viewtopic.php?f=2&t=147048 https://forum.mikrotik.com/viewtopic.php?f=2&p=723809 Stop IPv6 deployment, or move from MT to something else (Cisco, Linux + BI...
by marekm
Thu Mar 28, 2019 4:30 pm
Forum: General
Topic: Mikrotik: Change the default Powerbox config!
Replies: 16
Views: 1489

Re: Mikrotik: Change the default Powerbox config!

Count me as a complaint too. It was actually an OmniTik PoE 5ac, uplink on ether1 connected to the IDU of a NEC ipasolink (transparent bridge over which I access the device), I have reset it to defaults but (my mistake) forgot to check "no default configuration" - no MAC telnet/winbox access anymore...
by marekm
Tue Mar 05, 2019 11:34 am
Forum: Announcements
Topic: WPA2 preshared key brute force attack
Replies: 26
Views: 25108

Re: WPA2 preshared key brute force attack

Any known issues with disable-pmkid=yes so far? It's not yet the default (as of 6.44) - why?
by marekm
Thu Feb 28, 2019 8:15 pm
Forum: RouterBOARD hardware
Topic: BaseBox6, SXT6 - CE Full Declaration of Conformity
Replies: 0
Views: 291

BaseBox6, SXT6 - CE Full Declaration of Conformity

Ticket#2019021322006391 Products have the CE mark but I need the full document to get a license from our regulatory authority. Quick Guide says: "Full Declaration of Conformity (DoC) may be obtained by visiting our product page on https://mikrotik.com/products" but I can't find it there for the 6GHz...
by marekm
Fri Feb 22, 2019 9:33 pm
Forum: Wireless Networking
Topic: Nonstandard 60GHz channel, why 66000 and not 66960 MHz?
Replies: 5
Views: 1368

Re: Nonstandard 60GHz channel, why 66000 and not 66960 MHz?

Still no support for 66960 or 69120 as of 6.44rc4 - any chance to add that, or is it really not supported by the hardware?
by marekm
Tue Feb 19, 2019 12:22 pm
Forum: RouterBOARD hardware
Topic: hEX PoE + 48v = 802.3af/at only B ?
Replies: 2
Views: 371

Re: hEX PoE + 48v = 802.3af/at only B ?

The two modes A and B are not unexpected, they are fully specified in the 802.3af/at standards. Mode A is over the 10100 data pairs (12/36) and mode B is over the spare pairs (45/78) which are data pairs in gigabit too. Compliant PD (powered device) must accept power in any one of the two modes (in ...
by marekm
Mon Feb 04, 2019 2:42 pm
Forum: RouterBOARD hardware
Topic: wAP ac overheating?Crashing
Replies: 8
Views: 1458

Re: wAP ac overheating?Crashing

I'm also seeing wAP ac crashing under load (reboot by watchdog timer) - in my case, it's a "NAT router on a stick" (separate tagged VLANs for WAN and LAN sides) and CPU load from sustained high traffic on the wired side only (wireless mostly idle) is sufficient to trigger the issue. Despite reduced ...
by marekm
Thu Jan 31, 2019 7:11 pm
Forum: Announcements
Topic: February Newsletter #87
Replies: 65
Views: 14532

Re: January Newsletter #87

chipset limit is 8
Any better chipsets (802.11ay?) on the horizon? Ideally, backwards-compatible with current 802.11ad stations so that only the AP needs to be upgraded.
by marekm
Thu Jan 31, 2019 2:42 pm
Forum: Announcements
Topic: February Newsletter #87
Replies: 65
Views: 14532

Re: January Newsletter #87

It would be nice to be able to connect 3x as many stations per sector though - still limited to max 8.
by marekm
Wed Jan 30, 2019 9:15 pm
Forum: RouterBOARD hardware
Topic: CRS328-24P-4S+RM Head-Of-Line blocking?
Replies: 3
Views: 523

CRS328-24P-4S+RM Head-Of-Line blocking?

I have a setup where the CRS328 powers a few APs, and the uplink port (ether24) which shows many Rx overflow errors. Most APs run on gigabit links, except maybe two 100M ones. Total traffic through the switch is like 200-300 Mbps most of the time, so the Rx overflows are difficult to explain (no, no...
by marekm
Mon Jan 28, 2019 5:08 pm
Forum: RouterBOARD hardware
Topic: CRS317 10G -> 1G traffic slow, everything else fine
Replies: 21
Views: 7341

Re: CRS317 10G -> 1G traffic slow, everything else fine

The buffer size (RTT times speed) you're mentioning is too large (and is usually referred to as buffer-bloat). Needed buffer size in switch is typically smaller, a few frames (jumbo if needed) per switch. If there's a congestion on single port, flow control needs to kick-in. The buffer size you're ...
by marekm
Mon Jan 28, 2019 1:20 pm
Forum: RouterBOARD hardware
Topic: CRS317 10G -> 1G traffic slow, everything else fine
Replies: 21
Views: 7341

Re: CRS317 10G -> 1G traffic slow, everything else fine

I can confirm it is fixed in 6.43.8. What is the switch buffer size? It might be good enough for LAN use, but still too small for real bursty traffic from the Internet. The buffer should be approximately sized to hold amount of data corresponding to the average RTT (round trip time), and in a switc...
by marekm
Tue Jan 22, 2019 9:20 pm
Forum: General
Topic: per mac-address pcq-classifier
Replies: 8
Views: 1016

Re: per mac-address pcq-classifier

Still waiting for this feature in 2019. And yes, it is possible to drop some packets from a pppoe connection, this simply causes drop of IP packets that were encapsulated inside. Only if too many (LCP Echo request/reply) are dropped, pppoe disconnects. Long long ago, upstream bandwidth was limited (...
by marekm
Thu Jan 10, 2019 7:10 pm
Forum: Announcements
Topic: v6.42.11 [long-term] is released!
Replies: 42
Views: 9092

Re: v6.42.11 [long-term] is released!

1) Set Country, follow regulations, follow frequency list, output power, trust automatic settings like DFS etc. 2) Set no-country, use manual power, manual frequency, manual all things. 3) Set Country for default frequency list (follow regulations in that respect), Superchannel to allow manual powe...
by marekm
Sat Jan 05, 2019 10:27 pm
Forum: Wireless Networking
Topic: Nstreme and fairness
Replies: 0
Views: 278

Nstreme and fairness

Is there a plan to implement some kind of fairness on the AP side, to avoid excessive packet loss? I mention Nstreme because other protocols (802.11, nv2) almost don't work here (too much interference), Nstreme works to some degree but still causes a few percent of packet loss during peak hours (wit...
by marekm
Sat Jan 05, 2019 10:16 pm
Forum: Wireless Networking
Topic: 60GHz proximity and colocation
Replies: 13
Views: 1088

Re: 60GHz proximity and colocation

In my case it was wAP60 (PtMP) about 1m above LHG60 (PtP), and PtMP started dropping connection when the PtP link had significant traffic, despite running on distant channels (wAP at 58320, LHG at 64800) so the radios don't have good selectivity (just like all cheap radios with no real analog filter...
by marekm
Mon Dec 24, 2018 4:44 pm
Forum: General
Topic: Report "Delegated-IPv6-Prefix" attribute for PPPoE
Replies: 200
Views: 39517

Re: Report "Delegated-IPv6-Prefix" attribute for PPPoE

+1 Mikrotik, please tell us some estimated timeframe when this feature will be finished, so we can decide: wait longer, or go with accel-ppp on Linux instead (it's a lot of work, so it would not be fun to do all this work only to find out it was unnecessary because you finally implemented this featu...
by marekm
Mon Dec 24, 2018 4:34 pm
Forum: Announcements
Topic: v6.43.8 [stable] is released!
Replies: 169
Views: 33801

Re: v6.43.8 [stable] is released!

I've CPE scheduled to autoupgrade via scheduler script "/system package update download;" on all CPE's. This update is just messing things up. After every autoupdate. Have to site visit every client just to change from regulatory to superchannel. What a pain. If the frequency mode is set to superch...
by marekm
Sun Dec 23, 2018 1:32 am
Forum: Wireless Networking
Topic: 6.43.8 UPDATE ALERT READ BEFORE UPDATE
Replies: 5
Views: 961

Re: 6.43.8 UPDATE ALERT READ BEFORE UPDATE

I use country setting with superchannel as a way to set default scan-list and then add licensed frequencies to it (scan-list=default,5940-6100). country=no_country_set means FCC compliant set of channels, so scan-list may need to be set first to avoid losing connection (if the current channel is not...
by marekm
Thu Dec 13, 2018 5:17 pm
Forum: Wireless Networking
Topic: New 60ghz channel release expectation
Replies: 4
Views: 670

Re: New 60ghz channel release expectation

Why not 66960 and 69120 (channels 5 and 6) - is 66000 really the highest frequency current hardware can handle?
by marekm
Mon Nov 19, 2018 6:27 pm
Forum: RouterBOARD hardware
Topic: MUM Europe 2018 - New hardware incoming
Replies: 52
Views: 17767

Re: MUM Europe 2018 - New hardware incoming

The chipset has been discontinued, linux dropped support for it, and the new RB4011 pulls down full BGP feeds faster than a CCR1072. It's time for something new in the 1036/1072 range. RB4011 and RB1100AHx4 have only 1GB of RAM soldered (not expandable by changing a SODIMM) - is this sufficient to ...
by marekm
Mon Nov 19, 2018 3:39 pm
Forum: RouterBOARD hardware
Topic: RB 750UP SoC replacement: possible troubles?
Replies: 2
Views: 514

Re: RB 750UP SoC replacement: possible troubles?

If you only replace the SoC (not the flash) and solder it well (without damage to the board) - I think it should work fine. I don't think this SoC itself contains any serial number.
by marekm
Wed Nov 07, 2018 12:05 pm
Forum: Wireless Networking
Topic: is Dynadish6 dead?
Replies: 1
Views: 443

Re: is Dynadish6 dead?

It would be nice to see a new revision of it - as the first one didn't perform too well. Compared to NetMetal5 in superchannel mode (as BaseBox6 was not available yet), good 23dBi panel antenna (ElboxRF TetraAnt6) had a few dB stronger signal than DynaDish6. The integrated DynaDish6 antenna was like...
by marekm
Mon Oct 29, 2018 5:44 pm
Forum: Wireless Networking
Topic: LHG 60G experience
Replies: 547
Views: 63866

Re: LHG 60G experience

3765m - https://ispforum.cz/download/file.php?id=8741 4173m - https://ispforum.cz/download/file.php?id=8742 These long-range links use a non-standard and illegal 66000 frequency. Any chance for MT to implement 66960 and possibly 69120 too? Still illegal in many parts of the world, but at least stan...
by marekm
Thu Oct 25, 2018 3:24 pm
Forum: RouterBOARD hardware
Topic: Wish: 60GHz Pro Model
Replies: 12
Views: 1778

Re: Wish: 60GHz Pro Model

The new RouterOS releases allow stable connection over 2Km with existing LHG60. We have running links, works fine now in the autumn rain. At which frequency, and why 66000 (overlapping with 64800) and not 66960 (channel 5 with the standard 2.16GHz spacing above 4)? As for Pro model - yes I want it ...
by marekm
Mon Oct 22, 2018 10:20 pm
Forum: Wireless Networking
Topic: Nonstandard 60GHz channel, why 66000 and not 66960 MHz?
Replies: 5
Views: 1368

Nonstandard 60GHz channel, why 66000 and not 66960 MHz?

This non-standard channel overlaps with channel 4 (64800) as channels are 2.16 GHz wide. Non-overlapping would be channel 5 at 66960 (and 6 at 69120 if the hardware can ever go that far). Is this 66000 really the highest frequency the hardware can support? Or is it due to some country regulations (p...
by marekm
Fri Oct 19, 2018 1:20 pm
Forum: Wireless Networking
Topic: LHG 60G experience
Replies: 547
Views: 63866

Re: LHG 60G experience

66000 GHz is non standard freq for this band? Will You implement 66960 GHz and 69120 GHz? it's not a standard channel This source mentions 6 channels (ch5 = 66960, ch6 = 69120 MHz): https://en.wikipedia.org/wiki/Wireless_Gigabit_Alliance#Channels "Regional spectrum allocations vary by region limiti...
by marekm
Thu Oct 11, 2018 7:51 pm
Forum: General
Topic: Report "Delegated-IPv6-Prefix" attribute for PPPoE
Replies: 200
Views: 39517

Re: Report "Delegated-IPv6-Prefix" attribute for PPPoE

1) Add new pool with prefix that you want to assign to your PPPoE client; 2) Add new PPP profile and select this pool; 3) Send from RADIUS "Mikrotik-Group" parameter which is equal with this profile name. The workaround may be fine when testing IPv6 on just a few customers, but doesn't scale well t...
by marekm
Wed Oct 10, 2018 7:28 pm
Forum: General
Topic: Report "Delegated-IPv6-Prefix" attribute for PPPoE
Replies: 200
Views: 39517

Re: Report "Delegated-IPv6-Prefix" attribute for PPPoE

Changes regarding pools are not reverted. Fix changes how "solicit" packet is processed received from DHCPv6 clients that didn't have "Rapid Commit" enabled.
Could you give a clear answer about Delegated-IPv6-Prefix support in PPPoE server? Will it work in 6.44 / 6.45 / 7.x ?
by marekm
Wed Oct 10, 2018 2:16 pm
Forum: General
Topic: Report "Delegated-IPv6-Prefix" attribute for PPPoE
Replies: 200
Views: 39517

Re: Report "Delegated-IPv6-Prefix" attribute for PPPoE

Next 6.43 release and 6.44beta21 will contain fix for this problem. So PPPoE with DHCPv6 PD should work exactly the same as it did before v6.43. So PPPoE *client* will work as it did, but how about PPPoE *server* with DHCPv6 PD and Delegated-IPv6-Prefix attribute (which didn't work without workarou...
by marekm
Mon Oct 08, 2018 7:41 pm
Forum: General
Topic: Report "Delegated-IPv6-Prefix" attribute for PPPoE
Replies: 200
Views: 39517

Re: Report "Delegated-IPv6-Prefix" attribute for PPPoE

Looks like it is fixed in the 6.44 beta: https://forum.mikrotik.com/viewtopic.php?f=21&t=139057&start=50#p689985 *) dhcpv6-server - recreate DHCPv6 server binding if it is no longer within prefix pool when rebinding/renewing; Does this mean 6.44 will finally support running a dual-stack PPPoE serve...
by marekm
Sun Oct 07, 2018 2:11 am
Forum: RouterBOARD hardware
Topic: 100Mb LAN - what's the point?
Replies: 13
Views: 1730

Re: 100Mb LAN - what's the point?

The 100Mb port in Lite60 devices might make sense if the AP allowed much more than 8 stations to connect. It's a very rare situation where everyone uses their full bandwidth at the same time. Not even fiber networks are made like this, GPON is 2.5Gbps split between 128 customers which gives average ...
by marekm
Fri Oct 05, 2018 5:42 pm
Forum: RouterBOARD hardware
Topic: LHG 60G disable beam forming [SOLVED]
Replies: 31
Views: 5472

Re: LHG 60G disable beam forming [SOLVED]

Does beamforming work in both directions (TX/RX) - or is it TX only? I can see many different and changing tx-sector values, but rx-sector seems to be always 96. Or is it just not reported properly?
by marekm
Mon Sep 24, 2018 6:36 pm
Forum: RouterBOARD hardware
Topic: Bridge split-horizon vs hw-offload
Replies: 5
Views: 895

Re: Bridge split-horizon vs hw-offload

Good to know, I thought VLAN was something basic that should be hw-offloaded on all products (except mixing tagged and untagged on the same port - "hybrid ports" are not supported by some cheap "smart" switches, it could be that some switch chips really can't do it even though they can do VLANs).
by marekm
Sun Sep 23, 2018 12:08 am
Forum: RouterBOARD hardware
Topic: Bridge split-horizon vs hw-offload
Replies: 5
Views: 895

Re: Bridge split-horizon vs hw-offload

I use bridge VLAN filtering, and hw-offload works fine here on CRS328-24P-4S+ with ROS 6.42.7 and now 6.43.2 - as long as I don't try to isolate ports by setting horizon.
by marekm
Sat Sep 22, 2018 3:42 pm
Forum: RouterBOARD hardware
Topic: Bridge split-horizon vs hw-offload
Replies: 5
Views: 895

Bridge split-horizon vs hw-offload

Some switch chips have a feature (also supported in SwOS - forwarding table) where for N ports there is matrix of NxN bits to allow forwarding between any combination of ingress/egress ports. Why isn't bridge split-horizon hw-offload implemented simply by grouping ports by the same nonzero horizon v...
by marekm
Tue Sep 11, 2018 12:02 pm
Forum: Announcements
Topic: Newsletter #84
Replies: 47
Views: 12950

Re: Newsletter #84

That would be nice but unfortunately RBx00x devices are just too big to be mounted side by side in a 19" rack RB2011iL Dimensions Desktop:230x90x25mm There are rack cases that fit two RB2011 boards (bare boards without cases) inside. https://www.cyberteam.pl/produkt/1997_panel-mikrotik-rack-19-2-x-...
by marekm
Tue Jul 31, 2018 1:07 pm
Forum: SwOS
Topic: CRS328-4S-20S-4S+ First Day Fail?
Replies: 12
Views: 2000

Re: CRS328-4S-20S-4S+ First Day Fail?

Such things shouldn't happen in properly designed hardware - proper low voltage reset circuits are cheap and easily available. But as a workaround, add a resistor to discharge the capacitors faster - if the voltage on them during normal operation is 3.3 volts, use something like 100 ohms. Or a small...
by marekm
Sat Jul 21, 2018 11:16 pm
Forum: General
Topic: [6.43rc44] Hardware offloaded bridge and 'Switch Port Isolation' not working.
Replies: 3
Views: 916

Re: [6.43rc44] Hardware offloaded bridge and 'Switch Port Isolation' not working.

Even old SwOS on RB250GS and RB260GSP allows setting up the matrix specifying between which ports traffic can be forwarded. So it's a pretty basic switch chip feature that even simple switch chips should have, that just needs to be properly exposed in RouterOS to allow port isolation.
by marekm
Sat Jul 21, 2018 11:08 pm
Forum: General
Topic: No POE Power Cycle @ hEX POE
Replies: 14
Views: 3462

Re: No POE Power Cycle @ hEX POE

I can confirm the same issue still in 6.42.6 on RB960PGS, PowerBox Pro, and OmniTik 5 PoE ac too. PoE Out off/auto-on/forced-on settings work normally, but Power Cycle does nothing as if MT simply forgot to implement it (tested both winbox and command line, doesn't even wait for the specified 5 seco...
by marekm
Mon Jul 16, 2018 6:41 pm
Forum: Announcements
Topic: v6.42.6 [current]
Replies: 102
Views: 29708

Re: v6.42.6 [current]

What's new in 6.42.6 (2018-Jul-06 11:56):
*) w60g - fixed random disconnects;
*) w60g - general stability and performance improvements;
Disconnects (a few times per hour, started in 6.42.5, not a single one in 6.42.4) still not fixed for me, supout files sent again [Ticket#2018062622003837].
by marekm
Mon Jul 02, 2018 6:13 pm
Forum: Announcements
Topic: v6.42.5 [current]
Replies: 124
Views: 23076

Re: v6.42.5 [current]

At what power output are you right now? You will need to lower power output even more to something in range from 1 to 5 should be fine for such close distance Default, which is stable in 6.42.4. I have already tried different tx-power values (as suggested by support), there was no link at all with ...
by marekm
Sat Jun 30, 2018 9:53 pm
Forum: Announcements
Topic: v6.42.5 [current]
Replies: 124
Views: 23076

Re: v6.42.5 [current]

*) w60g - general stability and performance improvements; Ticket#2018062622003837 For me, 6.42.5 made w60g less stable (6.43rc34 has the same issues too) than 6.42.4. Wireless Wire Dish kit, 208 m PtP link, testing with UDP 300Mbps/600Mbps btest for many hours, new versions randomly disconnect abou...
by marekm
Sun Jun 17, 2018 12:20 am
Forum: RouterBOARD hardware
Topic: S+RJ10 and Jumbo Frames
Replies: 10
Views: 2939

Re: S+RJ10 and Jumbo Frames

Is the limit exactly 1500? I don't need to pass big (9k) jumbo frames, but need VLAN tags (single ones, not QinQ) and extra 8 bytes for RFC4638 PPPoE traffic, this means minimum L2MTU of 1526 (1514 for standard Ethernet + 8 for RFC4638 + 4 for VLAN). If existing cat5e cables can't be used with S+RJ1...
by marekm
Thu May 31, 2018 7:09 pm
Forum: RouterBOARD hardware
Topic: LtAP mini - does built-in GPS have 1PPS support?
Replies: 1
Views: 665

LtAP mini - does built-in GPS have 1PPS support?

RouterOS has had the ability to work as GPS synchronized NTP server for a long time - but its accuracy was limited by missing 1PPS support. Has this changed in the new LtAP mini product? I haven't found it mentioned anywhere in the docs, but since the product has built-in GPS receiver, it is not con...
by marekm
Sun May 06, 2018 2:15 am
Forum: Wireless Networking
Topic: Only 3 x 60Ghz bands for 60G devices?
Replies: 17
Views: 3001

Re: Only 3 x 60Ghz bands for 60G devices?

Having only 3 channels available might not be enough for 360deg coverage - it would be nice to do a 4-sector ABAB setup using only 2 channels with synchronization. Since there is plenty of bandwidth available, even simple fixed 50/50 uplink/downlink division would be good. NV2 synchronization shows ...
by marekm
Thu Apr 05, 2018 6:41 pm
Forum: Wireless Networking
Topic: Plain 802.11-an better then NV2!
Replies: 7
Views: 1945

Re: Plain 802.11-an better then NV2!

Does this mean 802.11 RTS/CTS works properly now? About 2 years ago it was broken on AC devices (NV2 was bad too, Nstreme was not perfect either but best of them all). The symptoms with RTS/CTS were like it was not avoiding collisions - works fine most of the time with high MCS rates, and just somet...
by marekm
Thu Mar 15, 2018 4:22 pm
Forum: SwOS
Topic: CSS326 slow SFP+ speed
Replies: 24
Views: 6454

Re: CSS326 slow SFP+ speed

Could the performance issues be caused by bursty traffic and too small buffers in the switch? So the traffic is below 1 Gb/s on average, but comes in short 10 Gb/s bursts that overflow a too small buffer resulting in packet loss? The issue is not theoretical, I've seen it already a few times in case...
by marekm
Mon Feb 05, 2018 9:17 pm
Forum: Announcements
Topic: MikroTik News February 2018 (Issue #80)
Replies: 65
Views: 17085

Re: MikroTik News February 2018 (Issue #80)

Question about the CRS112-8P-4S-IN: does it support -48V DC telecom power with positive ground?
by marekm
Fri Jan 19, 2018 8:50 pm
Forum: Wireless Networking
Topic: Station and many APs with same SSID, AP selection algorithm
Replies: 0
Views: 372

Station and many APs with same SSID, AP selection algorithm

It seems the station always selects the AP with strongest signal (even log messages say so), and tries hard to connect only to this one even if repeatedly rejected by MAC ACL. I'd suggest to work more like UBNT does: still try the strongest one first, but if rejected, try the next weaker one, until ...
by marekm
Thu Jan 04, 2018 8:05 pm
Forum: Wireless Networking
Topic: 6GHz products not working well at >=6300 MHz
Replies: 4
Views: 854

Re: 6GHz products not working well at >=6300 MHz

The sudden change of signal and noise floor levels between 6295 and 6300 doesn't look like antenna characteristics, more like some band-switching or up/down-converter circuit active at 6300-6500 MHz. Compared at the same distance (about 3 km): 1. AP (RB922UAGS-5HPacD) + Cyberbajt 6GHz 16dBi/120deg s...
by marekm
Wed Jan 03, 2018 4:19 pm
Forum: Wireless Networking
Topic: Wireless Wire WAP 60G P2MP Beam forming _
Replies: 17
Views: 2971

Re: Wireless Wire WAP 60G P2MP Beam forming _

maximum clients allowed are 8 and in outdoor test very big problems with the hidden nodes when the clients are on the same line, if the far end client starts trasmtting to AP over 50mb/s other clients lower MCS and sometimes they drop connections. Max distance 200m with signal 40 Does this still wo...
by marekm
Tue Jan 02, 2018 7:52 pm
Forum: Wireless Networking
Topic: Dynadish 6
Replies: 5
Views: 871

Re: Dynadish 6

Depends which frequencies you can use from this licensed band. My experience is not very good unfortunately, it may have the same issue as SXT6 (https://forum.mikrotik.com/viewtopic.php?f=7&t=128828) where signal levels drop sharply at >=6300 MHz (yes I have contacted support, not much help), and at...
by marekm
Tue Dec 19, 2017 6:59 pm
Forum: Wireless Networking
Topic: 6GHz products not working well at >=6300 MHz
Replies: 4
Views: 854

6GHz products not working well at >=6300 MHz

Ticket#2017110422000917 I see sudden signal level drop between 6295 and 6300 MHz. Latest response from support (after a few back-and-forth to upgrade RouterOS and try various settings, with not much effect): "The output power and the receive sensitivity can vary on the upper frequencies and there is...
by marekm
Wed Nov 15, 2017 12:05 am
Forum: Announcements
Topic: v6.41rc [release candidate] is released! New bridge implementation!
Replies: 561
Views: 123700

Re: v6.41rc [release candidate] is released! New bridge implementation!

*) w60g - general work on PtMP implementation for 60 GHz connections;
Devices in the Wireless Wire kit come with Level 3 licenses - will it work with more than one client, or is it necessary to buy a Level 4 license to test 60GHz PtMP?
by marekm
Sat Oct 21, 2017 10:19 pm
Forum: Beginner Basics
Topic: Safe Mode Powercycle - Useless
Replies: 13
Views: 2186

Re: Safe Mode Powercycle - Useless

Documentation only says: "All configuration changes that are made (also from other login sessions), while router is in safe mode, are automatically undone if safe mode session terminates abnormally." - I don't see anything specific about power failure case, I see it as another way to terminate sessi...
by marekm
Sat Oct 21, 2017 7:50 pm
Forum: RouterBOARD hardware
Topic: SXT Lite5 ac 2.4GHz interface
Replies: 3
Views: 1053

Re: SXT Lite5 ac 2.4GHz interface

Another way to use that 2.4GHz wifi interface could be for hotspot, as advertisement of our WISP's services. It would be nice if Mikrotik could lift the license restriction for this interface. I don't think many people actually pay to get Level 4 license upgrade for a routerboard that came with Leve...
by marekm
Sat Oct 21, 2017 7:31 pm
Forum: Beginner Basics
Topic: Safe Mode Powercycle - Useless
Replies: 13
Views: 2186

Re: Safe Mode Powercycle - Useless

+1 Power-cycle still commits changes made during Safe Mode as of 6.40.4 - I think it's a bug, or at least very counter-intuitive (not as safe as one might think). Not saving each individual change would have another benefit - less wear on flash memory, It would be nice to see Mikrotik add commands t...
by marekm
Tue Oct 17, 2017 6:31 pm
Forum: Wireless Networking
Topic: Virtual AP problems when master under high traffic
Replies: 0
Views: 318

Virtual AP problems when master under high traffic

I have basic a PtMP setup with all Mikrotik devices, ap-bridge and multiple station-bridge connected to it with nstreme protocol, bridged traffic between PPPoE server and customers. AP running 6.40.4, stations running various versions from 6.37.5 to 6.40.4, standard WPA2-PSK AES security. It works f...
by marekm
Thu Oct 05, 2017 5:58 pm
Forum: Wireless Networking
Topic: Non-standard channels for 6 GHz products?
Replies: 0
Views: 322

Non-standard channels for 6 GHz products?

Here in Poland non-standard channels are actually standard, the 6 GHz licensed band is divided into 28 MHz wide channels with 29.65 MHz spacing. But the SXT6 and DynaDish6 is ar93xx (not ar92xx) based, so custom channels are not supported. Any plans to support them? The products work as is (nearest ...
by marekm
Thu Oct 05, 2017 5:47 pm
Forum: Announcements
Topic: Newsletter 78 with 1GBPS WIRELESS PRODUCT ANNOUNCEMENT!
Replies: 109
Views: 29304

Re: Newsletter 78 with 1GBPS WIRELESS PRODUCT ANNOUNCEMENT!

Questions about the 60 GHz product: - why only 3, not 4 channels as in the IgniteNet product - is it a regulatory or hardware limitation? - any chance it will support channels narrower than 2 GHz (IgniteNet promised 500MHz "in future hardware revision")? - what is the antenna beamwidth, would it wor...
by marekm
Sun Aug 13, 2017 6:49 pm
Forum: RouterBOARD hardware
Topic: SXT 6GHz modification for external antenna?
Replies: 1
Views: 466

SXT 6GHz modification for external antenna?

Has anyone tried to disassemble the SXT 6GHz to see how hard would be to modify it, replacing the internal antenna with external antenna connectors? Is the internal antenna permanently soldered, or connected using pigtails with RF connectors? I ask specifically about the new 6GHz product, has anyone...
by marekm
Sun Aug 13, 2017 5:53 pm
Forum: RouterBOARD hardware
Topic: PowerBox Pro
Replies: 3
Views: 789

Re: PowerBox Pro

Why not make it in a QRT sized case - would have a nice high gain antenna, and plenty of space for more ports. Also, add a few diodes inside so that PoE-out ports can alternatively be used as redundant PoE-in (powered from a few customers in a building, sharing a common CPE). (or are MOSFETs used no...
by marekm
Wed May 17, 2017 1:49 pm
Forum: RouterBOARD hardware
Topic: longevity of devices
Replies: 12
Views: 1680

Re: longevity of devices

I am running some rb133 that work without any failure for more than 10 years.... That RB133 was likely made before the RoHS directive (2006) required lead-free soldering that made electronics much less reliable. I too have many old devices still working, and many newer ones that failed. There are R...
by marekm
Mon Mar 27, 2017 4:26 pm
Forum: General
Topic: Report "Delegated-IPv6-Prefix" attribute for PPPoE
Replies: 200
Views: 39517

Re: Report "Delegated-IPv6-Prefix" attribute for PPPoE

I'm sad .... now we try to get some informations about Cisco XRv and use it in VMware esxi like pppoe concentrator. But I'm afraid about high price. https://mellowd.co.uk/ccie/?p=2777 Mikrotik, please give us some hope. Thanks On x86 (physical or virtual) you can run your favourite Linux distro + B...
by marekm
Thu Nov 24, 2016 11:44 pm
Forum: General
Topic: Report "Delegated-IPv6-Prefix" attribute for PPPoE
Replies: 200
Views: 39517

Re: Report "Delegated-IPv6-Prefix" attribute for PPPoE

I asked support a few days ago when this will be implemented, and the response was:

"We do not have/provide such information."
by marekm
Thu Nov 17, 2016 1:45 am
Forum: Wireless Networking
Topic: Wireless scanner results - what does /DP mean?
Replies: 4
Views: 1332

Wireless scanner results - what does /DP mean?

I've seen this for the first time after upgrade to 6.37 (new wireless package) on an Omnitik used mostly for scanning.
Wireless scanner reports some networks with /DP after the channel:
5280/20/an
5280/20/an/DP
what does it mean?
by marekm
Fri Nov 04, 2016 12:59 am
Forum: Wireless Networking
Topic: Low NV2 802.11ac PTMP Thoughput
Replies: 47
Views: 10960

Re: Low NV2 802.11ac PTMP Thoughput

Anybody tried the new wireless packages? I did (6.37.1, AC PtMP setup in a clean licensed 6GHz channel), but don't see much difference. Like many people earlier, I can see packet loss and that's what slows down TCP throughput. UDP, or many parallel TCP sessions, can go much faster. That's just the ...
by marekm
Fri Oct 28, 2016 5:37 pm
Forum: Wireless Networking
Topic: NV2 QoS queue size?
Replies: 0
Views: 470

NV2 QoS queue size?

In the NV2 QoS settings, I can see the number of queues is configurable (2/4/8). But, what is the queue size, and would it be possible to make it configurable? I'm seeing some packet loss under high load even though latency is still acceptable, which suggests the queue may be too small for current w...
by marekm
Thu Sep 22, 2016 12:40 am
Forum: RouterBOARD hardware
Topic: Feature request dual ether port SXT
Replies: 1
Views: 654

Re: Feature request dual ether port SXT

SXT case might not have enough room for 2 ports, but QRT should have plenty and still has only one port and no SFP. Also, please make the two (or more) ports both PoE-out and PoE-in capable (redundant power, OR-ed with diodes), and add an option for each port to disable link when not receiving power...
by marekm
Sat Jul 30, 2016 11:02 am
Forum: Announcements
Topic: v6.37rc [release candidate] is released, only one wireless package!
Replies: 321
Views: 57275

Re: v6.37rc [release candidate] is released, only one wireless package!

Mikrotik, please don't force DFS on those who know what they're doing.  I know the weather radar in my area (near GDN airport) is at 5650 MHz (confirmed by spectral scan - high narrow peak visible), and I never use channels 128 and 132.  DFS disabled, no false positives, no downtime on each wireless...
by marekm
Sat Jul 23, 2016 2:24 am
Forum: General
Topic: Report "Delegated-IPv6-Prefix" attribute for PPPoE
Replies: 200
Views: 39517

Re: Report "Delegated-IPv6-Prefix" attribute for PPPoE

accel-ppp 1.11.0 is released, my PPPoE servers are aging RB1100AH's and I was hoping to replace them with nice new CCR's but now considering setting up good old Debian boxes with accel-ppp + BIRD (to redistribute PPPoE clients IPs by OSPF).
by marekm
Tue Jun 07, 2016 12:01 am
Forum: General
Topic: Report "Delegated-IPv6-Prefix" attribute for PPPoE
Replies: 200
Views: 39517

Re: Report "Delegated-IPv6-Prefix" attribute for PPPoE

Bump, on another annual IPv6 day... Any progress on this?
by marekm
Tue May 24, 2016 10:53 am
Forum: General
Topic: Report "Delegated-IPv6-Prefix" attribute for PPPoE
Replies: 200
Views: 39517

Re: Report "Delegated-IPv6-Prefix" attribute for PPPoE

+1 or look into installing accel-ppp + BIRD on Linux, Delegated-IPv6-Prefix has been supported for some time now, in the latest git sources (not stable release yet) it just got RFC4638 support as well, and it's all free software / open source. Yes, it needs more work to set up - that's the main reas...
by marekm
Fri Apr 29, 2016 12:34 pm
Forum: RouterBOARD hardware
Topic: HAP AC faulty seriers - very poor LAN performance? (switch problem)
Replies: 77
Views: 24071

Re: HAP AC faulty seriers - very poor LAN performance? (switch problem)

Ethernet, if done properly and not congested, should have practically zero packet loss (OK, nothing is perfect so let's say 0.0001% or one in a million). The square root in the formula means for 10 times more speed, you need 100 times lower loss. Yes, I'd suggest to RMA it. I'll have to test my own ...
by marekm
Thu Apr 28, 2016 12:40 pm
Forum: RouterBOARD hardware
Topic: HAP AC faulty seriers - very poor LAN performance? (switch problem)
Replies: 77
Views: 24071

Re: HAP AC faulty seriers - very poor LAN performance? (switch problem)

Packet loss increasing with temperature looks very much like a hardware issue - marginal Ethernet PHY, not likely to be fixable by software. Could be bad chips, bad capacitors (more likely ceramic ones, as electrolytics are worse when cold) etc. See if you could get more stable throughput by changin...
by marekm
Thu Apr 28, 2016 10:29 am
Forum: RouterBOARD hardware
Topic: HAP AC faulty seriers - very poor LAN performance? (switch problem)
Replies: 77
Views: 24071

Re: HAP AC faulty seriers - very poor LAN performance? (switch problem)

Low speeds from distant servers can be explained by packet loss. See the formula for throughput of a TCP connection: http://en.wikipedia.org/wiki/TCP_tuning#Packet_loss Even small packet loss like 0.1%, combined with typical RTT over the Internet, is significant. TCP just works that way, remember it...
by marekm
Wed Apr 27, 2016 4:07 pm
Forum: RouterBOARD hardware
Topic: RB951Ui-2nD ether5 can't power SXT-ac, but can power LocoM5
Replies: 0
Views: 515

RB951Ui-2nD ether5 can't power SXT-ac, but can power LocoM5

Tried two different 951's and two different SXT's, connected by a 1 meter patch cord for testing. The red LED just flashes, no matter if set to "auto" or "forced". The SXT's work powered from RB750UP. LocoM5 works powered from the 951. Are the 951's defective, or simply have not enough power to even...
by marekm
Wed Apr 20, 2016 4:21 pm
Forum: General
Topic: v6.35 [current] is released!
Replies: 103
Views: 24736

Re: v6.35 [current] is released!

Was the new wireless-rep pulled in the last minute?
It is simply not in the combined package. You have to download it separately.
I see - thanks. Using wireless-cm2 for now, will give more time for the new stuff to mature (hoping to see more nv2/802.11ac improvements).
by marekm
Wed Apr 20, 2016 4:11 pm
Forum: General
Topic: v6.35 [current] is released!
Replies: 103
Views: 24736

Re: v6.35 [current] is released!

That's not going to work the way it used to anymore. Now you have to use CoA to change dynamic items. CoA is good, but why not allow changes to dynamic queues the old way as well? I have used this to remove all speed limits at night on the PPPoE server - disable/enable queues from scheduled scripts.
by marekm
Sat Apr 16, 2016 3:23 pm
Forum: General
Topic: v6.35 [current] is released!
Replies: 103
Views: 24736

Re: v6.35 [current] is released!

Was the new wireless-rep pulled in the last minute? I've just tested on one SXT-ac, after upgrade from 6.34.4 to 6.35 the list of packages shows wireless-fp (disabled) and wireless-cm2 (enabled) as before. If yes then it's understandable, but please fix the 6.35 changelog.
by marekm
Sat Mar 19, 2016 1:14 am
Forum: General
Topic: Feature Request: Indoor reset for outdoor units
Replies: 11
Views: 2614

Re: Feature Request: Indoor reset for outdoor units

Most U*** radios can be reset by putting the positive supply voltage through a resistor on data pairs. BTW, I suggested it to them in July 2009 - http://community.ubnt.com/t5/NanoStation-and-Loco-Devices/TFTP-recovery-without-access-to-reset-button/m-p/24220/highlight/true#M8742 - though I have to a...
by marekm
Tue Mar 01, 2016 12:32 am
Forum: RouterBOARD hardware
Topic: SXT Lite5 ac in NV2 losing pings
Replies: 2
Views: 755

Re: SXT Lite5 ac in NV2 losing pings

Try station-bridge instead of station-wds mode on all CPEs - this fixed nv2 packet loss for me, even with heavy traffic. Bridge mode must be enabled on the AP side, and you don't have advanced bridge features (filter, STP etc.) as it's a simple bridge built into the wireless AP interface.
by marekm
Wed Dec 30, 2015 4:42 pm
Forum: RouterBOARD hardware
Topic: New SXT AC Lite
Replies: 22
Views: 3823

Re: New SXT AC Lite

Is the 5GHz antenna in the SXT AC Lite the same as in the standard SXT G-5HPacD? The standard SXT AC antenna works quite well up to 6100 MHz, SXT AC HG not so well (different antenna design - higher gain, but narrower bandwidth), it would be interesting to know about the SXT AC Lite before I buy mor...
by marekm
Fri Nov 27, 2015 6:35 pm
Forum: General
Topic: Delegated-IPv6-Prefix radius still does not work
Replies: 1
Views: 838

Re: Delegated-IPv6-Prefix radius still does not work

+1

Any timeframe for this feature? Still possible in ROS v6 - or only v7?
by marekm
Sun Oct 25, 2015 4:59 pm
Forum: Wireless Networking
Topic: What is wrong with nv2?
Replies: 63
Views: 9434

Re: What is wrong with nv2?

AC Radios do not have supporting CPUs to do TDMA. MT has to use the Atheros CPU of the chipset. There are Vendors who do HW-Modifikations to offload the CPU or to add GPS. This is what MT has to do to compete in WISP market. For home/indoor AP use this is not neccesary as this is plain 802.11. Well...
by marekm
Fri Oct 23, 2015 11:16 pm
Forum: Wireless Networking
Topic: What is wrong with nv2?
Replies: 63
Views: 9434

Re: What is wrong with nv2?

I've just reconfigured my PtMP setup from nv2 to plain 802.11ac, and it seems to work better now (tried nstreme too, but it also had issues like disconnecting frequently). Strangely enough, btest tcp results with nv2 seem significantly better than real speedtest.net results (that's what customers ca...
by marekm
Thu Oct 22, 2015 3:00 pm
Forum: General
Topic: v6.33rc release candidate (final testing)
Replies: 203
Views: 37302

Re: v6.33rc release candidate

PPPoE now will support RFC4638
https://tools.ietf.org/html/rfc4638
Good to hear that. Is it supported for both PPPoE client and server?
Any chance for Delegated-IPv6-Prefix RADIUS attribute for PPPoE server, while you're at it?
by marekm
Wed Oct 14, 2015 9:09 am
Forum: General
Topic: 802.11ac spectral scan
Replies: 158
Views: 32662

Re: 802.11ac spectral scan

+3

Not just 10 MHz, please support other non-standard channel widths and frequencies (with advanced channels license) too. I have some spectrum in 6GHz licensed band where channels are 28 MHz wide with 29.65 MHz spacing, currently have to use 20 MHz wide channels centered at multiples of 5 MHz.
by marekm
Sun Oct 11, 2015 11:45 pm
Forum: Wireless Networking
Topic: What is wrong with nv2?
Replies: 63
Views: 9434

Re: What is wrong with nv2?

Seeing less than perfect results with nv2+ptmp+ac setup here, too. Some packet loss and changing Tx rates (from 6 to 173), despite strong signals and clean licensed 6 GHz spectrum. I suspect the AC radios are too sensitive to strong interference signals even very far in frequency from the used chann...
by marekm
Thu Oct 08, 2015 10:43 pm
Forum: General
Topic: v6.33rc release candidate (final testing)
Replies: 203
Views: 37302

Re: v6.33rc release candidate

*) wlan - improved 802.11 protocol single connection TCP performance for ac chipset with cm2 package.

I see this in rc16 but not in rc21 changelog anymore, does this mean the improvement was reverted?
by marekm
Thu Oct 08, 2015 12:04 am
Forum: SwOS
Topic: RB260GSP packet buffer size?
Replies: 2
Views: 2261

RB260GSP packet buffer size?

If some bursty traffic comes in via a gigabit link on one port, and leaves via a 100 Mbps link on another port, the buffer inside the switch may become full and drop packets even if average traffic is below 100 Mbps. So, how much traffic can be queued by these switches before they start to drop pack...
by marekm
Tue Oct 06, 2015 9:23 pm
Forum: RouterBOARD hardware
Topic: New Routerboard sector antenna/device
Replies: 31
Views: 4261

Re: New Routerboard sector antenna/device

1. Availability date? Winter is coming soon.
2. Frequency range? Would be nice if it works with acceptable SWR up to 6100 MHz.
by marekm
Thu Sep 17, 2015 3:12 am
Forum: RouterBOARD hardware
Topic: Wireless signal strength LED thresholds
Replies: 0
Views: 825

Wireless signal strength LED thresholds

Is there any way to set the threshold in dBm for each LED on the QRT 5 ac, NetMetal 5 etc.? The defaults may be good for finding the approximate direction (often possible by just looking around anyway), but not for precise antenna alignment to get the last few dBm for best performance. U*** have had...
by marekm
Mon Sep 14, 2015 12:35 pm
Forum: General
Topic: v6.33rc release candidate (final testing)
Replies: 203
Views: 37302

Re: v6.33rc release candidate

*) ppp - added CoA support to PPPoE, PPTP & L2TP (Mikrotik-Recv-Limit, Mikrotik-Xmit-Limit, Mikrotik-Rate-Limit, Ascend-Data-Rate, Ascend-XMit-Rate, Session-Timeout); One of the PPPoE server features (already supported by accel-ppp) I asked for some time ago - thanks! How about the other two: - Del...
by marekm
Fri Sep 04, 2015 12:39 am
Forum: Wireless Networking
Topic: Best integrated 2x2 CPE for 802.11ac in 5.9-6.1 GHz licensed band?
Replies: 1
Views: 864

Best integrated 2x2 CPE for 802.11ac in 5.9-6.1 GHz licensed band?

The whole band is 5925-6425 MHz, but standard radios work up to 6100 and now I have a few channels available in that range. This is out of spec for antennas designed for 5 GHz, and some work better than others. I did some tests to compare SXT 5ac with SXT HG5ac, and the lower gain version seems to w...
by marekm
Mon Aug 03, 2015 8:28 pm
Forum: RouterBOARD hardware
Topic: RB951G-2HnD WiFi works very poorly with Nokia N900
Replies: 6
Views: 2080

Re: RB951G-2HnD WiFi works very poorly with Nokia N900

I've just tried RB951-2n running 6.30.2 with wireless-cm2 and it seems to work fine now. I can ping the phone and get variable high latency (normal with power saving) but no packet loss anymore (even with the N900 max power save setting) - finally. Thanks!
by marekm
Fri Jun 05, 2015 3:02 am
Forum: Wireless Networking
Topic: Matching PPP protocol type with ROS
Replies: 3
Views: 988

Re: Matching PPP protocol type with ROS

Found this thread from 2 years ago, and I'm interested in this too - would like to give higher L2 (802.1p) priority to PPPoE LCP frames to reduce number of disconnects, and possibly also to PPPoE data traffic of selected customers (based on RADIUS). Has anything improved in this area in the current ...
by marekm
Fri Dec 05, 2014 11:44 am
Forum: General
Topic: Report "Delegated-IPv6-Prefix" attribute for PPPoE
Replies: 200
Views: 39517

Re: Report "Delegated-IPv6-Prefix" attribute for PPPoE

Bump.
Any chances for Delegated-IPv6-Prefix RADIUS attribute to be supported by MikroTik PPPoE server soon, or do I have to look into other solutions (such as accel-ppp)?
by marekm
Wed Dec 03, 2014 3:27 am
Forum: General
Topic: PPPoE keepalive-timeout not working
Replies: 0
Views: 1290

PPPoE keepalive-timeout not working

I'm not seeing any LCP Echo Request frames sent to PPPoE clients - this can leave behind a "hung" PPPoE session after the client is gone, even though keepalive-timeout is set to 60 seconds as you can see quoted from "export compact" below. This is with RB1100AH running 6.19 as PPPoE server, but one ...
by marekm
Mon Dec 01, 2014 2:26 am
Forum: Beginner Basics
Topic: Ingress L2 traffic limiting on bridge port
Replies: 0
Views: 502

Ingress L2 traffic limiting on bridge port

Simple setup with RB750UP and all ether1-ether5 ports in a bridge. Customers connected to ether1-ether4, ether5 goes to a shared CPE radio. I'd like to limit traffic into ether1 (upload from customer) but a simple queue wth target=ether1 doesn't work (shows no traffic in statistics). I want to limit...
by marekm
Tue Nov 11, 2014 3:28 pm
Forum: General
Topic: Feature request: WPS wi-fi connection
Replies: 11
Views: 8870

Re: Feature request: WPS wi-fi connection

Is WPS the only way, normal WPA2-PSK password can't be used? WPS was a nice idea but turned out to be insecure by design, and is best to leave disabled.
by marekm
Mon Nov 10, 2014 1:50 am
Forum: General
Topic: Feature request: PPPoE server persistent graphs
Replies: 0
Views: 684

Feature request: PPPoE server persistent graphs

I'm running MikroTik PPPoE servers with freeradius for AAA. One problem is that traffic graphs for PPPoE interfaces (as well as their dynamic queues created by Mikrotik-Rate-Limit RADIUS attribute) disappear when connections are lost. Would it be possible to preserve them (not delete when disconnect...
by marekm
Mon Nov 10, 2014 12:35 am
Forum: General
Topic: Report "Delegated-IPv6-Prefix" attribute for PPPoE
Replies: 200
Views: 39517

Re: Report "Delegated-IPv6-Prefix" attribute for PPPoE

I'm thinking that more useful will be support for Delegated-IPv6-Prefix in the accept message because we need assign IPv6 prefixes in managed way from RADIUS server. The router when receive Delegated-IPv6-Prefix in the accept message creates a dynamic pool and this pool is then assigned to a dynami...
by marekm
Wed Sep 10, 2014 1:28 am
Forum: RouterBOARD hardware
Topic: POE over 4 wires (2 pair)
Replies: 18
Views: 17095

Re: POE over 4 wires (2 pair)

It is possible to run 100Mbps ethernet + 802.3af PoE over just 2 pairs, using the right kind of PSE (supporting mode A - power on data pairs). Then convert it to passive PoE with MT's (POE-CON-HP) or UBNT's (instant 802.3af) converter close to the powered device.
by marekm
Thu Sep 04, 2014 1:54 am
Forum: RouterBOARD hardware
Topic: mAP 802.3af support
Replies: 47
Views: 21534

Re: mAP 802.3af support

The PSE is often a switch with many ports which power other (truly 802.3af standard compliant) devices, so it may not be practical to change it. Good to hear there are plans for improvement, better late than never. IMHO, passive PoE should have been replaced by standard 802.3af as soon as gigabit Po...
by marekm
Thu Sep 04, 2014 1:34 am
Forum: RouterBOARD hardware
Topic: RB1100AH ethernet bypass not working after shutdown
Replies: 2
Views: 1122

Re: RB1100AH ethernet bypass not working after shutdown

Yes, I understand how it works. The relay is activated by software (some GPIO pin), not wired permanently to power supply - as it clicks during reboot. So it should only be active (disable bypass, enable normal function of ports 11 and 12) while ROS is running properly (not if halted by "/system shu...
by marekm
Wed Sep 03, 2014 2:31 am
Forum: RouterBOARD hardware
Topic: mAP 802.3af support
Replies: 47
Views: 21534

Re: mAP 802.3af support

try a crossover cable for the Mode B. MikroTik, sorry about the rant but please don't claim "802.3af support" as that standard requires PDs to accept both modes A/B (PSE is free to choose any one of them), both polarities, and 1500V isolation. The proper (not cheapest though) way to implement 802.3...
by marekm
Mon Sep 01, 2014 1:05 am
Forum: RouterBOARD hardware
Topic: RB1100AH ethernet bypass not working after shutdown
Replies: 2
Views: 1122

RB1100AH ethernet bypass not working after shutdown

Tested with 6.15 and 6.19 - after "/system shutdown" the ethernet bypass is not activated, power has to be physically disconnected. I can hear the relay clicks on power up/down and while rebooting, but not when system is halted (even though ethernet ports are disabled, no more link).
by marekm
Sun Jul 27, 2014 11:39 pm
Forum: General
Topic: Newsletter 60: 802.11ac
Replies: 104
Views: 54855

Re: Newsletter 60: 802.11ac

Do the 802.11ac products support 256QAM with narrower channel widths? What is the highest supported superchannel frequency? Need some PtMP gear for the upper half of licensed 5.9-6.4 GHz band that doesn't cost a small fortune; current 802.11n Atheros chips (in both MT and UBNT products) support max ...
by marekm
Sat Jul 26, 2014 3:04 am
Forum: Forwarding Protocols
Topic: BGP session over 31 bit subnet
Replies: 15
Views: 5656

Re: BGP session over 31 bit subnet

I've had similar issues with OSPF as well, between Mikrotik and Vyatta. The only common method supported by both is the old school /30 (wasting precious IPv4 addresses) - /31 works with Vyatta but not Mikrotik, /32 works with Mikrotik but not Vyatta.
by marekm
Sat Jul 26, 2014 2:53 am
Forum: Forwarding Protocols
Topic: Proper IPv6 support
Replies: 7
Views: 2178

Re: Proper IPv6 support

That's why link local addresses are suffixed with %interface. Sounds like you need proper ipv6 training. Ospfv3 is working fine in production for me on vlan interfaces. It works exactly as other devices work with vlan interfaces. Well, more IPv6 training is certainly good, but I've already got 4 st...
by marekm
Fri Jul 25, 2014 2:06 am
Forum: General
Topic: address list match result cached, how to flush?
Replies: 0
Views: 471

address list match result cached, how to flush?

On a RB1100AH set up as PPPoE server, I have a simple web redirection (dst-nat http port 80 to IP address of web server) for non-paying customers to a web page with reminder to contact me and https (not blocked) links to all online banks I know of (so they don't complain they can't pay because the I...
by marekm
Fri Jul 25, 2014 1:36 am
Forum: Forwarding Protocols
Topic: Proper IPv6 support
Replies: 7
Views: 2178

Re: Proper IPv6 support

OSPFv3 gets confused when running on more than one VLAN with the same underlying physical ethernet interface - same MAC address, same link-local IPv6 address in different VLAN interfaces. This is a valid setup, different VLANs are different links after all (despite sharing the same MAC address), I d...
by marekm
Mon Jun 30, 2014 11:29 am
Forum: Virtualization
Topic: MetaRouter for CCR1036-12G-4S
Replies: 8
Views: 5326

Re: MetaRouter for CCR1036-12G-4S

Bump. Almost a year has passed - any good news?
Or still no way to run metarouter on one of these many, mostly idle cores of the CCR?
by marekm
Mon Jun 30, 2014 4:33 am
Forum: RouterBOARD hardware
Topic: Any miniPCI for 5.9-6.4GHz ETSI licensed band?
Replies: 0
Views: 1335

Any miniPCI for 5.9-6.4GHz ETSI licensed band?

I've found DBII F64N-PRO but it's not available for purchase due to lack of CE certification. Anything else? There is already certified PtMP equipment for this band, but at crazy prices like $4000/AP and $800/CPE - probably because much of it purchased for EU money. UBNT in theory has M6 series, but...
by marekm
Mon Jun 30, 2014 4:07 am
Forum: General
Topic: PPPoE server with RADIUS, how to add IPv6
Replies: 11
Views: 4943

Re: PPPoE server with RADIUS, how to add IPv6

Bump. As for Framed- vs. Delegated-IPv6-Prefix - both may be needed, the customer could connect a router or just a single host running a PPPoE client. Or do PPPoE clients on hosts (not routers) also ask for prefix delegation? It would be nice if everything configured itself automagically, all the cu...
by marekm
Sat Jun 28, 2014 3:20 pm
Forum: SwOS
Topic: TX pauses frame with flow control disable
Replies: 6
Views: 7010

Re: TX pauses frame with flow control disable

I also have problems, with pause frames bringing down the network even with flow control on the switch disabled. One customer has an old broken D-Link router which hangs after about 10-15 minuts uptime and then starts spewing pause frames like mad (flow control can't be disabled on that router). Thi...
by marekm
Wed May 07, 2014 3:42 am
Forum: General
Topic: PPPoE server with RADIUS, how to add IPv6
Replies: 11
Views: 4943

Re: PPPoE server with RADIUS, how to add IPv6

Framed-IPv6-Prefix is for the WAN side of the customer's router, and that seems to work. But that alone is only good for a single computer (not a router) to connect via PPPoE. Delegated-IPv6-Prefix is for the LAN side (pppoe server should add a route to it via the customer's router, that router shou...
by marekm
Mon May 05, 2014 1:35 am
Forum: General
Topic: PPPoE server with RADIUS, how to add IPv6
Replies: 11
Views: 4943

Re: PPPoE server with RADIUS, how to add IPv6

How about Delegated-IPv6-Prefix (RFC4818) - any plans to support it soon? I'd like to have only static IPs/prefixes defined by RADIUS for each customer - no dynamic pools, or separate Mikrotik-Delegated-IPv6-Pool for each customer.
by marekm
Sat May 03, 2014 3:17 am
Forum: General
Topic: PPPoE server with RADIUS, how to add IPv6
Replies: 11
Views: 4943

PPPoE server with RADIUS, how to add IPv6

I have a working IPv4 PPPoE setup with freeradius, looking to add IPv6 dual-stack support (testing with a FritzBox 7570 which should support IPv6 properly). However, the instructions I found suggest to use an IPv6 pool. Is there a simple way to assign static IPv6 prefixes to customers, just like sta...
by marekm
Sat May 03, 2014 2:11 am
Forum: RouterBOARD hardware
Topic: CCR1009-8G-1S-1S+ does ether8 really support 802.3af PoE-in?
Replies: 5
Views: 4074

Re: CCR1009-8G-1S-1S+ does ether8 really support 802.3af PoE

OK, thanks. But the spec sheet shouldn't say "802.3af/at compliant" if it's not. I have -48V (nominal, really -42 to -56 depending on battery state of charge) or +24V (made from -48V with a DC/DC converter) available. Can't use -48V directly if the CCR requires negative ground - would +24V over a Mi...
by marekm
Thu May 01, 2014 3:14 am
Forum: RouterBOARD hardware
Topic: CCR1009-8G-1S-1S+ does ether8 really support 802.3af PoE-in?
Replies: 5
Views: 4074

Re: CCR1009-8G-1S-1S+ does ether8 really support 802.3af PoE

GS110TP has 8 gigabit ports with 802.3af compliant PoE out (48V DC, external power supply). GS108T accepts 802.3af PoE-in on first port. It draws about 4 watts, no problem at 48V over 100m (even 110m tested, power was still fine but gigabit link was flapping sometimes) of good quality cat5e cable (p...
by marekm
Wed Apr 30, 2014 4:11 pm
Forum: RouterBOARD hardware
Topic: CCR1009-8G-1S-1S+ does ether8 really support 802.3af PoE-in?
Replies: 5
Views: 4074

CCR1009-8G-1S-1S+ does ether8 really support 802.3af PoE-in?

I've tried to power the CCR from a Netgear GS110TP switch (where another port powers a GS108T over ~100m of cable, and it works), but it only says Searching (no overcurrent etc.) - is the PoE-in on ether8 of the CCR for real, or just a mistake in the specs? Power consumption of 35W is too much for P...
by marekm
Sat Dec 14, 2013 1:46 am
Forum: General
Topic: IPv6 link local address on vlan interfaces
Replies: 4
Views: 2584

Re: IPv6 link local address on vlan interfaces

Bump. I've just checked and can confirm the issue still present in v6.7 - OSPFv3 doesn't work properly on more than one VLAN interface (on the same physical ethernet port, sharing the same MAC and thus IPv6 link-local address) at a time. It's a known issue with some other router vendors as well, for...
by marekm
Mon Oct 28, 2013 12:12 am
Forum: General
Topic: IPv6 link local address on vlan interfaces
Replies: 4
Views: 2584

Re: IPv6 link local address on vlan interfaces

Can the same instance of OSPFv3 work on multiple different VLAN interfaces of the same router (having the same link local addresses)? My setup is a few routers, each with a single physical gigabit link connected to a managed switch, and everything done with multiple VLANs. This simplifies the physic...
by marekm
Tue Jul 02, 2013 1:25 pm
Forum: RouterBOARD hardware
Topic: RB951G-2HnD WiFi works very poorly with Nokia N900
Replies: 6
Views: 2080

Re: RB951G-2HnD WiFi works very poorly with Nokia N900

Tried 6.1 with firmware 3.08 too, no change. I also have a RB2011UAS-2HnD-IN and will try it when time permits, hope it will work better.
by marekm
Tue Jul 02, 2013 3:11 am
Forum: RouterBOARD hardware
Topic: RB951G-2HnD WiFi works very poorly with Nokia N900
Replies: 6
Views: 2080

Re: RB951G-2HnD WiFi works very poorly with Nokia N900

Yes, the latest 3.xx firmware that came with ROS 5.25. Do you mean "they did some stuff" as they fixed it, or they broke it and it should be downgraded?
by marekm
Sat Jun 29, 2013 4:29 am
Forum: RouterBOARD hardware
Topic: RB951G-2HnD WiFi works very poorly with Nokia N900
Replies: 6
Views: 2080

RB951G-2HnD WiFi works very poorly with Nokia N900

Standard AP setup with ether1 and wlan1 bridged, WPA2-PSK AES; short distances (a few meters) and little interference (at home). Tried both 5.25 and 6.1, no difference. No issues with a laptop but trying to ping the phone results in high latency (up to a few seconds) and packet loss. The RB951G-2HnD...
by marekm
Thu May 30, 2013 1:55 pm
Forum: RouterBOARD hardware
Topic: Chaining multiple RB750UP
Replies: 2
Views: 877

Chaining multiple RB750UP

What is the realistic max number of chained RB750UP units? Like this: RB750UP #1 ether2 (PoE out) - cable - RB750UP #2 ether1 (PoE in) RB750UP #2 ether2 (PoE out) - cable - RB750UP #3 ether1 (PoE in) RB750UP #3 ether2 (PoE out) - cable - RB750UP #4 ether1 (PoE in) ... and so on - where the #1 is pow...
by marekm
Sun May 26, 2013 10:32 pm
Forum: Forwarding Protocols
Topic: OSPF not working over /31 point-to-point ethernet
Replies: 11
Views: 4761

Re: OSPF not working over /31 point-to-point ethernet

1) Set the interface with a /32 ip address. (10.0.0.2/32) and the network address with the remote endpoint IP address (10.0.0.3). 2) Set the /ip ospf network accordingly (10.0.0.2/31). As I said in the first post, I know about it. Actually the addresses don't have to be contiguous, can be re-used f...
by marekm
Fri May 24, 2013 3:23 pm
Forum: Forwarding Protocols
Topic: OSPF not working over /31 point-to-point ethernet
Replies: 11
Views: 4761

Re: OSPF not working over /31 point-to-point ethernet

I''m asking both MikroTik to support /31 (in ROS v6, understand it may be too late to add in v5) and Vyatta to support /32. Currently using Vyatta for BGP, but if MikroTik gets there first, I promise to buy a new CCR or two :)
by marekm
Wed May 22, 2013 1:36 pm
Forum: Forwarding Protocols
Topic: OSPF not working over /31 point-to-point ethernet
Replies: 11
Views: 4761

Re: OSPF not working over /31 point-to-point ethernet

/31 is not supported.. You should use /32 or /30 Do you mean /31 is "not supported" in general, or just for OSPF? If would be bad if it works with peer's ROS 5.15 by accident, and breaks when they upgrade. Please consider supporting it, as described in RFC3021. No problem to use /32 between MT boxe...
by marekm
Wed May 22, 2013 1:06 pm
Forum: Forwarding Protocols
Topic: OSPF not working over /31 point-to-point ethernet
Replies: 11
Views: 4761

OSPF not working over /31 point-to-point ethernet

I'm running OSPF in a mixed environment: two RB1100AH boxes (ROS 5.25) as PPPoE servers, VRRP and DHCP; two Vyatta boxes (VC 6.6) as BGP routers. It would be nice to be able to use /31 subnets for point-to-point links between the routers, saving the precious public IP addresses. However, it doesn't ...
by marekm
Tue May 21, 2013 3:51 pm
Forum: RouterBOARD hardware
Topic: CCR - Secondary PSU
Replies: 58
Views: 21337

Re: CCR - Secondary PSU

yes, other PSU can be used. Just note that PSUs have to provide different voltage, minimal delta should be no less than 1V, to be on the safe side you can go with 2V difference. What can happen if the two PSU voltages are too close, is there some risk of hardware damage? The normally higher voltage...
by marekm
Fri May 10, 2013 2:40 am
Forum: SwOS
Topic: VLANS yet
Replies: 3
Views: 2266

Re: VLANS yet

I'am running 3 RB260 with vlans on my network ( 1.9 ) and till now i did not encounter any problem. The management vlan also work. Has anyone managed to mix many tagged and one untagged VLANs on the same port, is it finally possible with SwOS 1.9? It's called Hybrid or General port mode and support...
by marekm
Thu May 09, 2013 11:49 pm
Forum: RouterBOARD hardware
Topic: RB1100AH switch (ether1-5) performance issues
Replies: 0
Views: 600

RB1100AH switch (ether1-5) performance issues

Has anyone else seen limited throughput between ports of the ether1-5 switch group, even though the hardware switch chip was used (ether1 as master for ether2-5 slaves) so the traffic never reaches the CPU? RB1100AH running ROS 5.24, couldn't play with it much as it's in production use, but simply m...
by marekm
Thu May 09, 2013 11:28 pm
Forum: General
Topic: RB2011UAS-2HnD-IN QuickSet - PPPoE only on SFP, not ether1
Replies: 3
Views: 2772

RB2011UAS-2HnD-IN QuickSet - PPPoE only on SFP, not ether1

I've just noticed a little issue when configuring a new RB2011UAS-2HnD-IN (ROS 5.25) with QuickSet in Winbox as a basic SOHO router with PPPoE client on ether1 WAN port - it insists on setting up PPPoE on the SFP port (even with no SFP module present), ether1 doesn't work by default (it does for DHC...
by marekm
Sat Feb 23, 2013 1:45 am
Forum: SwOS
Topic: feature requests / bugs summary (RB250GS/ RB260GS)
Replies: 38
Views: 28539

Re: feature requests / bugs summary (atm: RB250GS)

Does the AR8327 in the new RB260GS finally address the VLAN limitations? As we know, the RB250GS doesn't support mixed tagged and untagged VLANs on the same port, supported as so called General or Hybrid mode in better switches - must be all untagged (Access) or all tagged (Trunk). It would be a sha...
by marekm
Sat Nov 24, 2012 12:44 am
Forum: General
Topic: 5.22 released!
Replies: 104
Views: 47825

Re: 5.22 released!

What's new in 5.22 (2012-Nov-23 09:28): *) userman - fix PayPal "bad HTTP response"; *) kvm - fixed possible ROS guest incomplete package installation; *) l2tp server - added keepalive-timeout setting; *) wireless - fixed RADIUS mac-caching; *) wireless - fixed rare nv2 link stall; *) metarouter - ...
by marekm
Fri Nov 23, 2012 1:14 am
Forum: RouterBOARD hardware
Topic: RB2011UAS-2HnD-IN Questions Topic
Replies: 215
Views: 92447

Re: RB2011UAS-2HnD-IN Questions Topic

Isn't this just the limitation of RouterOS, and not the chip itself?
Qualcomm-Atheros mentions these features on their AR8327 web page:
- Full VLAN support including QinQ and VLAN tag insertion and removal, with IVL and SVL
- VLAN translation and mapping
so why are they not fully supported?
by marekm
Tue Nov 20, 2012 4:51 am
Forum: RouterBOARD hardware
Topic: Will ever be an RB750GLUP?
Replies: 5
Views: 1116

Re: Will ever be an RB750GLUP?

PoE-out at least on the five 10/100 ports of the RB2011 would be nice, and easier to implement (gigabit PoE is more tricky as the transformers must be able to handle high DC currents - more expensive, larger size). As an added bonus, instead of the diodes in series adding unnecessary voltage drop (p...
by marekm
Tue Nov 20, 2012 4:27 am
Forum: RouterBOARD hardware
Topic: Routerboard POE Feature Wish
Replies: 1
Views: 565

Re: Routerboard POE Feature Wish

Simply make a sort of "crossover' cable with blue=4/5 and brown=7/8 pairs swapped (the usual crossover cable to connect 2 NICs without a switch swaps the orange=1/2 and green=3/6 pairs), that will reverse the polarity without modifications to the RB750UP. Be careful to not damage radios by wrong pol...
by marekm
Tue Nov 13, 2012 3:16 am
Forum: Scripting
Topic: PPPoE FreeRADIUS how to implement monthly traffic limits?
Replies: 0
Views: 1208

PPPoE FreeRADIUS how to implement monthly traffic limits?

I'm running a small local WISP here, about 300 customers and growing, using two RB1100AH for PPPoE servers (for redundancy and load sharing), with authentication by FreeRADIUS server (two Linux boxes for redundancy), not using any database yet - just a plaintext users file where RADIUS attributes ar...
by marekm
Thu Oct 25, 2012 2:38 am
Forum: RouterBOARD hardware
Topic: OmniTik UPA-5HnD system health - constant temperature
Replies: 0
Views: 502

OmniTik UPA-5HnD system health - constant temperature

Device upgraded to ROS 5.21 (originally came with 5.6, old MAC prefix 000C42 so probably one of the earlier devices), firmware 3.0 - the built-in temperature sensor always shows 39C to 40C, no matter if the device was at room temp (about 20C) or outside (about 7C right now). Is this a known issue wi...
by marekm
Mon Oct 22, 2012 10:39 pm
Forum: General
Topic: local proxy arp ?
Replies: 11
Views: 4452

Re: local proxy arp ?

What hack do you mean, how can I access Linux sysctl from within RouterOS 5.x on RB2011L? As I mentioned, can't really use a bridge instead of the switch I already have (couldn't find gigabit 802.3af midspan injectors with external 48V DC input at reasonable price, settled for Netgear GS110TP switch...
by marekm
Mon Oct 22, 2012 9:49 pm
Forum: General
Topic: local proxy arp ?
Replies: 11
Views: 4452

Re: local proxy arp ?

Looking for the "private vlan proxy arp" feature too, see RFC 3069, supported since Linux 2.6.34, can be enabled by /proc/sys/net/ipv4/conf/*/proxy_arp_pvlan . If ROS 5.x is based on 2.6.35, it should be fairly easy for Mikrotik to add this feature. I have a few wireless APs each with client isolati...
by marekm
Mon Aug 20, 2012 1:55 am
Forum: RouterBOARD hardware
Topic: RB750UP - how to reflash the voltage monitor / PoE MCU
Replies: 5
Views: 2106

Re: RB750UP - how to reflash the voltage monitor / PoE MCU

OK, it seems 5.20 with PoE controller upgrade to 2.0 fixed my RB750UP blinking red (before upgrade, the firmware that was broken by 5.19rc1 was still reported as version 1.0). Thanks - more testing to follow later, hopefully the higher current limits will make things more stable at 12V DC (average l...
by marekm
Mon Aug 06, 2012 12:45 pm
Forum: RouterBOARD hardware
Topic: RB750UP - Issue
Replies: 260
Views: 54854

Re: RB750UP - Issue

OK, waiting for another "rc" to test. I understand the software can't do anything about voltage drop (but please consider hardware redesign - there exist protected 4-channel high-side switch chips built just for that purpose, such as Infineon BTS711L1), but I hope it can fix the over-sensitive prote...
by marekm
Sat Aug 04, 2012 1:43 am
Forum: RouterBOARD hardware
Topic: RB750UP - how to reflash the voltage monitor / PoE MCU
Replies: 5
Views: 2106

Re: RB750UP - how to reflash the voltage monitor / PoE MCU

OK, happy to report some improvement after upgrade from 5.19 to 5.20rc1 - it seems to have reflashed the MCU, at least the voltage monitor started working again, but there is still something odd with PoE output: poe-out=forced-on works as expected, poe-out=auto-on is the same as forced-on (enabled e...
by marekm
Fri Aug 03, 2012 10:42 pm
Forum: RouterBOARD hardware
Topic: RB750UP - Issue
Replies: 260
Views: 54854

Re: RB750UP - Issue

Bump. I have to work around the PoE out issues, by using an external 4-port PoE injector and a few patch cords. Looks messy and can't reboot radios remotely, but no more random reboots and very little voltage drop on PTC resettable fuses. Still keeping the RB750UP for its voltage monitor (to know AC...
by marekm
Sat Jul 28, 2012 8:06 pm
Forum: RouterBOARD hardware
Topic: RB750UP - how to reflash the voltage monitor / PoE MCU
Replies: 5
Views: 2106

RB750UP - how to reflash the voltage monitor / PoE MCU

I have one RB750UP where the router itself works as expected, but the PoE and voltage monitor part went bad. The symptoms are all four red LEDs blinking (about 3 times per second), power applied to PoE out (with short pauses as the LEDs blink), and the voltage monitor doesn't work ("/system health p...
by marekm
Wed Jul 18, 2012 12:51 pm
Forum: RouterBOARD hardware
Topic: RB750UP - Issue
Replies: 260
Views: 54854

Re: RB750UP - Issue

I've been waiting for the RB750UP PoE out fixes, but don't see any in the just released 5.19 changelog. Is the changelog complete? I've tried 5.19rc1 once, and it seems to have bricked the MCU that controls PoE out and voltage monitor (now ports 2-5 are powered and red LEDs blink all the time, volta...
by marekm
Fri Jun 22, 2012 11:15 pm
Forum: RouterBOARD hardware
Topic: RB750UP voltage drop
Replies: 2
Views: 699

Re: RB750UP voltage drop

Thanks. Suggestion to consider for the next revision of RB750UP: instead of diodes in series with power switches, put them in parallel so that if power is applied to a PoE out port, it will simply power the board (and possibly other ports too). This still protects the transistors from reverse curren...
by marekm
Fri Jun 08, 2012 10:16 am
Forum: Scripting
Topic: run script and memory leak
Replies: 15
Views: 2531

Re: run script and memory leak

I can confirm a memory leak in a simple command: /queue simple disable [/queue simple find ] Background: RB1100AH, ROS v5.16 running as PPPoE server with dynamic simple queues set up by FreeRADIUS Mikrotik-Rate-Limit attribute, currently a little over 200 customers connected. I'm recently testing "u...
by marekm
Tue Jun 05, 2012 8:59 am
Forum: SwOS
Topic: Password in cleartext in SwOS 1.6 config backup file
Replies: 2
Views: 1993

Password in cleartext in SwOS 1.6 config backup file

I've just discovered that it's simply ASCII encoded in hex, near the end of *.swb file - for example, 'password' is '70617373776f7264'. It would be nice if future versions (if any development is still being done on SwOS) could use a proper hash function like Unix crypt(). Until then, be careful not ...
by marekm
Fri May 18, 2012 2:20 pm
Forum: RouterBOARD hardware
Topic: RB750UP voltage drop
Replies: 2
Views: 699

RB750UP voltage drop

Looking inside the RB750UP, I can see some ways to reduce voltage from DC jack to PoE out. The goal is to run UBNT radios from 12V battery backup power supplies and make it more stable over fairly short lengths of good copper cables (already running fine on 12V without the RB750UP, don't want to go ...
by marekm
Fri Mar 23, 2012 12:40 am
Forum: RouterBOARD hardware
Topic: RB1100AHx2 slowed down to 533MHz?
Replies: 6
Views: 2201

RB1100AHx2 slowed down to 533MHz?

I've just noticed this on one of the two of these "flagship" units I have: [admin@MikroTik] > /system resource print uptime: 1h13m18s version: 5.14 free-memory: 1501460KiB total-memory: 1555212KiB cpu: e500v2 cpu-count: 2 cpu-frequency: 533MHz cpu-load: 14% free-hdd-space: 23512KiB total-hdd-space: ...
by marekm
Sat Mar 17, 2012 1:15 pm
Forum: RouterBOARD hardware
Topic: RB1100AHx2 Memorygate v2
Replies: 9
Views: 3594

Re: RB1100AHx2 Memorygate v2

Be warned, both RB1100AHx2 and RB1100AH (x1) have this small flash. I've just bought a RB1100AH specifically because it had 512MB NAND flash according to the distributor (while they say the x2 has 64MB), compare: http://cdr.pl/index.php?p1450,routerboard-rb1100ah-2gb-ram-1066mhz-13x-gigabit-lan-rout...
by marekm
Wed Jan 18, 2012 3:53 am
Forum: General
Topic: RB1100AH 41MB HDD Storage (Instead of 512mb)
Replies: 19
Views: 5556

Re: RB1100AH 41MB HDD Storage (Instead of 512mb)

Any chance the RB1100AHx2 will support metarouter in the future, like the x1 does? The winbox menu option is there (unlike RB1200), but any attempt to create it fails with "not enough resources". Ideally, make it possible to use micro-sd card for storage, if the router itself has so little NAND flas...
by marekm
Mon Jan 16, 2012 2:44 pm
Forum: General
Topic: RB1100AH 41MB HDD Storage (Instead of 512mb)
Replies: 19
Views: 5556

Re: RB1100AH 41MB HDD Storage (Instead of 512mb)

this is not specified anywhere, so you should not assume such things. RouterBOARDs are coupled with enough NAND to run RouterOS unless specified otherwise. http://routerboard.com/pdf/353/rb1100ug.pdf - page 4: Storage Device The device is equipped with one 512MB NAND nonvolatile memory chip. NAND f...
by marekm
Fri Jan 13, 2012 2:18 pm
Forum: RouterBOARD hardware
Topic: RB750 UP lab test
Replies: 24
Views: 3645

Re: RB750 UP lab test

consider that there is voltage drop on protection chains and resulting voltage can be lower than you actually expect. As result overload protection can happen faster. For example, 12V to 10V is 17% drop that results in 17% current increase. Why so much voltage drop on the protection? OK, yes it is ...
by marekm
Fri Jan 13, 2012 1:06 pm
Forum: RouterBOARD hardware
Topic: RB750 UP lab test
Replies: 24
Views: 3645

Re: RB750 UP lab test

use PSU that was supplied with the unit. You will have better results if you use 24V Unfortunately, the supplied PSU doesn't have battery backup which I need. I use UBNT radios at low power (staying within legal limits), and three of them (1*NanoBridgeM5, 2*Bullet5 - each with ~15m of good quality ...
by marekm
Fri Jan 13, 2012 5:52 am
Forum: RouterBOARD hardware
Topic: RB750 UP lab test
Replies: 24
Views: 3645

Re: RB750 UP lab test

Short detection is made as fast as possible with small delay so capacitors with capacitance of up to 200uF could charge up and would not cause false positive. Short is detected differently than overload due to that, because, that delay in case of real short will hurt the board. So there is a bllanc...
by marekm
Thu Dec 29, 2011 2:21 pm
Forum: RouterBOARD hardware
Topic: RB750UP - Issue
Replies: 260
Views: 54854

Re: RB750UP - Issue

your magic devices just do not have the resistance required, so it will not be powered up. And where did you read that it is passive poe :) Also, it has overload protection and short protection. It is not a simple hack. Also, i have checked a lot of 100Mbps interface routers and everything worked f...
by marekm
Thu Dec 29, 2011 1:22 pm
Forum: RouterBOARD hardware
Topic: RB750UP - Issue
Replies: 260
Views: 54854

Re: RB750UP - Issue

It could be problem with other devices if it does not adhere to standart and does not have correct resistance - as a result it is detected that PoE cannot be turned to to not to burn out the port it is connected to. Load values you are calling should not cause any problems what ever you are doing o...
by marekm
Fri Dec 23, 2011 1:27 am
Forum: RouterBOARD hardware
Topic: RB750UP - how to enable PoE, current monitor etc.
Replies: 26
Views: 31856

Re: RB750UP - how to enable PoE, current monitor etc.

RB750UP is up to 30V. Power chain on the board converts it to 5V as required by wireless part on integrated board, so there is nothing to worry about. UBNT radios (which I'm powering from the RB750UP) are specified for 24V max, better to play it safe (especially legacy series, shipped with 15V PoE ...
by marekm
Tue Dec 20, 2011 4:28 pm
Forum: RouterBOARD hardware
Topic: RB750UP - how to enable PoE, current monitor etc.
Replies: 26
Views: 31856

Re: RB750UP - how to enable PoE, current monitor etc.

you could try to step up the battery voltage to 24V that could sort out the overload protection kicking in. Also, you can check precisely how much power each device draws, that could be problem if you are using 12V to power the RB570UP then you get 10.5V on the output, if some of device is using MA...
by marekm
Mon Dec 19, 2011 1:39 am
Forum: General
Topic: PPPoE + RADIUS Mikrotik-Rate-Limit simple queues too small
Replies: 5
Views: 3610

PPPoE + RADIUS Mikrotik-Rate-Limit simple queues too small

I've just set up two PPPoE servers running RouterOS 5.11 on RB1200 and RB1100AHx2, for about 200 customers (mostly bridged PPPoE over 5GHz 802.11n wireless, from 512k/128k to 12M/2M download/upload) They use dynamically created "default-small" pfifo queues for each PPPoE connection, based on Mikroti...
by marekm
Sun Dec 18, 2011 11:12 pm
Forum: RouterBOARD hardware
Topic: RB750UP - how to enable PoE, current monitor etc.
Replies: 26
Views: 31856

Re: RB750UP - how to enable PoE, current monitor etc.

OK, first RB750UP in the field (small relay station) - not without some issues... Reporting them here in the hope Mikrotik can try to address them. RB750UP powered from a CyberPower CS24U12V-12 power supply with 12V/12Ah battery backup. All ports configured as a simple bridge for now. Previously it ...
by marekm
Fri Dec 16, 2011 2:20 pm
Forum: RouterBOARD hardware
Topic: RB750UP - how to enable PoE, current monitor etc.
Replies: 26
Views: 31856

Re: RB750UP - how to enable PoE, current monitor etc.

i have tested with various Gbps ports (RouterBOARDs generally) and none of the ports where burned with poe-out=auto. Actually, even with PoE in on Gbit port it did not turn on the power since it differs from 100Mbps port. Of course, to be 100% safe, use off setting where you do not need the power o...
by marekm
Thu Dec 15, 2011 5:46 pm
Forum: RouterBOARD hardware
Topic: RB750UP - how to enable PoE, current monitor etc.
Replies: 26
Views: 31856

Re: RB750UP - how to enable PoE, current monitor etc.

Thanks. What exactly does "auto" do, since it's passive PoE so no 802.3af like detection signature is defined. Power is enabled after I plugged in a Loco5 though. Wasn't brave enough to try if "auto" is safe for non-PoE gigabit ports though (should not enable power in that case). And, how about the ...
by marekm
Wed Dec 14, 2011 11:16 pm
Forum: General
Topic: PPPoE & IPv6
Replies: 43
Views: 12368

Re: PPPoE & IPv6

For this reason Mark Townsley and I also proposed a RIPE IPv6 policy change to RIPE community - extending initial allocation size (/32) to /29 without additional documentation. Why? Because small ISPs that would like to implement 6RD with one 6RD domain will be able to give out just /64 with /32 in...
by marekm
Wed Dec 14, 2011 7:57 pm
Forum: RouterBOARD hardware
Topic: RB750UP - how to enable PoE, current monitor etc.
Replies: 26
Views: 31856

RB750UP - how to enable PoE, current monitor etc.

I've just got a fresh new RB750UP - it came with 5.6 so upgraded to 5.11 - and still can't find the option to enable PoE, or read the current monitor.
Couldn't find the fine manual to read on routerboard.com yet. Any hints would be welcome - or is this only a planned feature, to be released later?
by marekm
Sat Dec 10, 2011 3:25 am
Forum: Forwarding Protocols
Topic: Possible bug: Peer uptime counting backwards
Replies: 2
Views: 1115

Re: Possible bug: Peer uptime counting backwards

Following up myself (moderator please append this to my previous post, not yet approved). It seems to be a winbox issue (just happened with 5.10 too), shows pppoe uptime counting down to zero then up, but the CLI shows the correct uptime (longer, as if counted from zero up). As I mentioned I'm runni...
by marekm
Sat Dec 10, 2011 2:31 am
Forum: Forwarding Protocols
Topic: Possible bug: Peer uptime counting backwards
Replies: 2
Views: 1115

Re: Possible bug: Peer uptime counting backwards

Many months later, I'm seeing a similar bug in a different context - RB1200 running ROS 5.8 and 5.9 as a PPPoE server, and sometimes Winbox (running under Wine under Linux) shows PPPoE session uptimes count backwards to zero, then forward as normal. Disconnect such a client (click "Remove"), then it...
by marekm
Fri Dec 02, 2011 4:13 pm
Forum: General
Topic: RB1200 ROS 5.0 - up to 5.5 - randomly reboots (BGPv4 and v6)
Replies: 62
Views: 15187

Re: RB1200 ROS 5.0 - up to 5.5 - randomly reboots (BGPv4 and

Watchdog doesn't seem to help after all. We found that the issue is to not use ports 9 and 10 and then the problem will stop. We will fix the issue in v5.10 So - UNPLUG CABLES FROM PORTS 9 AND 10 and see if it helps! Hmm, are you sure it's that simple? I'm using port 10 _only_ (connected to a switc...
by marekm
Tue Oct 04, 2011 11:29 am
Forum: General
Topic: Mikrotik POE output on all ports. Which product?
Replies: 25
Views: 2213

Re: Mikrotik POE output on all ports. Which product?

September
Which year? :)
by marekm
Wed Sep 14, 2011 1:44 pm
Forum: General
Topic: Newsletter 33
Replies: 48
Views: 11443

Re: Newsletter 33

I've just got a new RB1200 (it came with 5.2), hoping to see the 5.7 improvements soon. Next week, or next month? :)
by marekm
Wed Sep 14, 2011 1:39 pm
Forum: RouterBOARD hardware
Topic: RB750UP questions/suggestions
Replies: 108
Views: 26670

Re: RB750UP questions/suggestions

What certification? RB750UP has no wireless. And, projects are stopped here as well...
by marekm
Mon Aug 22, 2011 4:45 am
Forum: RouterBOARD hardware
Topic: RB1200 and V.DC 48-56V
Replies: 6
Views: 2161

Re: RB1200 and V.DC 48-56V

Is this 12-24V absolute rating for the RB1200, or is it reasonably safe to go a little below 12V or above 24V? Some other routerboards were specified for a wider range like 8-30V. I'd like to use a lead-acid battery backup power supply, either 12V or 24V one, as a more efficient alternative to UPS. ...
by marekm
Mon Mar 14, 2011 7:26 pm
Forum: RouterBOARD hardware
Topic: RB750UP questions/suggestions
Replies: 108
Views: 26670

RB750UP questions/suggestions

1. As some people already suggested - please do shielded Ethernet ports, for proper grounding of radios over FTP cable shield. 2. Are the PoE power switches and current monitors in the high side (positive)? Otherwise it may not work properly if the radios have grounds (negative) shorted by cable shi...
by marekm
Fri Mar 04, 2011 12:11 am
Forum: General
Topic: PPPoE Server CPU Optimizing
Replies: 3
Views: 1131

Re: PPPoE Server CPU Optimizing

Single-core Pentium III 1400MHz with rtl8139 ethernet works fine here for ~100 PPPoE connections (and lots of other things), running Debian but with rp-pppoe rebuilt to upgrade 3.8 to 3.10 and enable kernel mode PPPoE (stock package runs user mode only, more CPU load). Not sure which mode (kernel or...
by marekm
Thu Mar 03, 2011 11:41 am
Forum: General
Topic: RB493G v4.16 "/tool graphing health" not working
Replies: 0
Views: 354

RB493G v4.16 "/tool graphing health" not working

While the interface traffic and CPU/memory/disk graphs work as expected, I'd like to graph the voltage (DC power supply with lead acid battery backup) as well, to know when there were AC power failures and how good is still the battery. The old docs for 3.0 - http://www.mikrotik.com/testdocs/ros/3.0...
by marekm
Wed Feb 02, 2011 1:14 am
Forum: SwOS
Topic: what's wrong with upload speed limiting?
Replies: 4
Views: 3622

Re: what's wrong with upload speed limiting?

Same issue here (RB250GS port ingress bandwidth limit is very rough), and broadcast storm limit (optionally set to include unicast) is in the wrong direction too (egress, when it would be better to work on ingress). I'd like to connect a few customers in a building to a common radio on the roof, and...
by marekm
Wed Feb 02, 2011 12:16 am
Forum: SwOS
Topic: SwOS ACL issues, trying to pass only PPPoE
Replies: 0
Views: 1892

SwOS ACL issues, trying to pass only PPPoE

Hello, I'm new to this forum (not new to networking in general, in fact running a small local WISP over 100 customers - just mostly Linux and the other well known brand of radios so far, beginner in RouterOS), please try to be gentle. I'm trying to set up a RB250GS (latest SwOS v1.4) to pass only PP...