Community discussions

Search found 202 matches

by nkourtzis
Wed May 15, 2019 10:54 pm
Forum: The Dude
Topic: Dude causes CPU spikes and packet loss on a RB1100AHx4
Replies: 0
Views: 181

Dude causes CPU spikes and packet loss on a RB1100AHx4

Hello, I have tried to run a small (31 devices) dude installation on a RB1100AHx4. The data files are stored in a A1-class (100MB/s read, 50MB/s write) Sandisk SD card, formatted as EXT3. The card is only a few weeks old, has plenty of free space (14.6 free of 14.8GB). The database is vacuumed. The ...
by nkourtzis
Sun Apr 14, 2019 2:13 pm
Forum: Forwarding Protocols
Topic: OSPF PtMP type removes network advertisements?
Replies: 3
Views: 806

Re: OSPF PtMP type removes network advertisements?

I am also facing the same behaviour and would like to know if there is any workaround. I saw that PTMP is recommended over wireless links as being more stable, but at the same time if I cannot manage the radios, then it becomes problematic.
by nkourtzis
Mon Apr 01, 2019 9:59 am
Forum: Announcements
Topic: v6.45beta [testing] is released!
Replies: 305
Views: 66394

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

There were two IPv6 related issues resolved in this version: 1) IPv6 packet forwarding might get stuck (due to IPv6 route cache processing) that could lead to Watchdog reboot; 2) IPv6 neighbor table processing might get stuck (due to large neighbor table) that could lead to Watchdog reboot. Seems t...
by nkourtzis
Mon Feb 18, 2019 10:27 am
Forum: Announcements
Topic: v6.44rc [testing] is released!
Replies: 67
Views: 11572

Re: v6.44rc [testing] is released!

@heizer ... when will this new function be available? [i mean, out of beta]... its a bit OT, but since more people might be interested... It is not that significant improvement as it may seem. It works as an envelope command to usual ping and btest. These commands runs on background and speedtest j...
by nkourtzis
Thu Feb 14, 2019 3:25 pm
Forum: RouterBOARD hardware
Topic: Why people pair UBNT APs with MikroTik routers?
Replies: 55
Views: 27855

Re: Why people pair UBNT APs with MikroTik routers?

Mikrotik employees many times stated that they are not using built-in kernel module for TILE architecture. Instead, they are using their own module developed in cooperation with manufacturer of those CPU. Dropping TILE support from new kernel is not relevant to RouterOS. I was about to comment when...
by nkourtzis
Thu Feb 14, 2019 10:07 am
Forum: RouterBOARD hardware
Topic: Why people pair UBNT APs with MikroTik routers?
Replies: 55
Views: 27855

Re: Why people pair UBNT APs with MikroTik routers?

My 2 cents... I choose Mikrotik: - For routing when high performance-to-price ratio and advanced features are needed. - When configuration by the user is not required. - For the power of winbox. - For Wireless when MkTik routers are also in use and vendor standardization is important. - For the real...
by nkourtzis
Thu Jan 10, 2019 10:34 am
Forum: General
Topic: The advantage that wins in portable deployments
Replies: 1
Views: 265

The advantage that wins in portable deployments

I thought a lot before posting this. I am not usually the person who goes in a vendor's forum and says "I am choosing another vendor". I believe that posts in a forum used for communication between an equipment maker and its users, should somehow be constructive, to offer something that can lead to ...
by nkourtzis
Wed Dec 05, 2018 1:07 pm
Forum: RouterOS v6 RC and v7 BETA
Topic: the pcc dose not work when it works with fasttrack
Replies: 18
Views: 1544

Re: the pcc dose not work when it works with fasttrack

No, it is not a bug. It is actually mentioned somewhere in the wiki. Fasttrack bypasses some sections of the Firewall engine (part of which is mangle) and this makes it incompatible with some features that look inside packets, like pcc (which is based on source/destination addresses/ports).
by nkourtzis
Wed Dec 05, 2018 11:28 am
Forum: Announcements
Topic: v6.44beta [testing] is released!
Replies: 365
Views: 79262

Re: v6.44beta [testing] is released!

and bgp multithreading support when? Normis has already answered this one: not in the foreseeable future. It appears that BGP is very hard to make multithreaded, due to transaction integrity issues. No vendor has done it, as far as I know. But he has also promised that v7 will bring significant imp...
by nkourtzis
Wed Nov 28, 2018 12:36 pm
Forum: Announcements
Topic: v6.44beta [testing] is released!
Replies: 365
Views: 79262

Re: v6.44beta [testing] is released!

Dear Mikrotik engineers, Thank you for the relentless development of new and improved features. Would you consider fixing this issue: https://forum.mikrotik.com/viewtopic.php?f=2&t=119267 Imagine relying on l2tp for a backup (failover) connection, only to realise that it is not working when you need...
by nkourtzis
Wed Nov 28, 2018 11:32 am
Forum: General
Topic: L2TP reconnection problem after Internet disruption
Replies: 9
Views: 1476

Re: L2TP reconnection problem after Internet disruption

Also here. VERY annoying, especially as I use L2TP to establish a backup tunnel (with auto failover), to find out that when needed, it is not operational!

Mikrotik engineers, do you have this on your radar?
by nkourtzis
Thu Nov 08, 2018 6:27 pm
Forum: RouterBOARD hardware
Topic: RB1100AHx4 drops packets when CPU spikes to 20% and above
Replies: 1
Views: 652

RB1100AHx4 drops packets when CPU spikes to 20% and above

Hello, I have an RB1100AHx4 which routes a handful of subnets and also applies some mangle rules to prioritize packets, including a couple rules using L7 filter. With this setup, CPU spikes from 4-5% to ~10-12% every few seconds. At some point I tried to add a couple more L7 rules and CPU spiked to ...
by nkourtzis
Thu Nov 08, 2018 6:11 pm
Forum: RouterBOARD hardware
Topic: Max speed and size of SD-Card supported by RB1100AHx4?
Replies: 0
Views: 438

Max speed and size of SD-Card supported by RB1100AHx4?

Hello everyone,

Does anybody know what is the maximum sd-card category (speed) and size that RB1100AHx4 can make use of in its built-in slot? Mikrotik engineers, can you shed some light on this?

Thank you!
by nkourtzis
Sat Oct 27, 2018 9:01 pm
Forum: RouterOS v6 RC and v7 BETA
Topic: v6 RC and v7 BETA
Replies: 126
Views: 22533

Re: v6 RC and v7 BETA

Seriously now, hasn't anyone noticed the huge slowdown of development of v6 in the past months? RC builds used to come out almost every day, each with half a page of changes. Now they come out every two weeks or longer, with up to half a page of changes. Couldn't this indicate that many MkTik devs h...
by nkourtzis
Fri Aug 24, 2018 1:20 pm
Forum: Announcements
Topic: v6.43rc [release candidate] is released!
Replies: 557
Views: 108061

Re: v6.43rc [release candidate] is released!

The winbox behaviour where winbox closes upon reconnecting to a previously broken connection, is again here since v3.16. It occurs not always, but quite often. Mktik, can you please look into it? Another issue: I am trying to connect to a device via RoMON which runs over a EoIP connection (L2 only, ...
by nkourtzis
Fri Aug 24, 2018 12:55 pm
Forum: Announcements
Topic: v6.43rc [release candidate] is released!
Replies: 557
Views: 108061

Re: v6.43rc [release candidate] is released!

*) rb3011 - added IPsec hardware acceleration support;

That was.. unexpected! :D

And VERY VERY welcome! Thanks Mktik!
by nkourtzis
Wed Aug 08, 2018 3:51 pm
Forum: RouterBOARD hardware
Topic: No VLAN table on Realtek switch chip?
Replies: 9
Views: 1314

Re: No VLAN table on Realtek switch chip?

I believe that this router has more than enough horsepower to do VLANs in hardware and still achieve high throughputs. But then again, it depends on what you want to do with it...
by nkourtzis
Fri Aug 03, 2018 4:01 pm
Forum: RouterOS v6 RC and v7 BETA
Topic: VLAN Trunk without knowing/cofiguring all VLANS
Replies: 5
Views: 977

Re: VLAN Trunk without knowing/cofiguring all VLANS

Bridge --> VLAN supports VLAN ranges (e.g. 30-1024)... ;-)
by nkourtzis
Tue Jul 24, 2018 3:45 pm
Forum: Announcements
Topic: v6.43rc [release candidate] is released!
Replies: 557
Views: 108061

Re: v6.43rc [release candidate] is released!

*) wireless - improved Nv2 reliability on ARM devices;

The first point-to-point tests with nv2 on arm are not satisfactory. We will perform more tests
Just a question without intention of doubting what you say: why use NV2 on PtP?
by nkourtzis
Wed Jul 11, 2018 11:58 am
Forum: Announcements
Topic: v6.43rc [release candidate] is released!
Replies: 557
Views: 108061

Re: v6.43rc [release candidate] is released!

Even better, have two automatically generated FQDNs, one with a "-ip4" and one with "-ip6" suffixes after the serial number and associate each with the respective address. Why do you think two DNS names (one with A record and one with AAAA record) is better than having one DNS name with both A and ...
by nkourtzis
Tue Jul 10, 2018 1:00 pm
Forum: Announcements
Topic: v6.43rc [release candidate] is released!
Replies: 557
Views: 108061

Re: v6.43rc [release candidate] is released!

I would better have two separate checkboxes in /ip cloud, one for IPv4 and one for IPv6. Depending on which option is checked, DNS records for the automatically generated FQDN should be created for the IPv4 address, the IPv6 address or BOTH. Even better, have two automatically generated FQDNs, one w...
by nkourtzis
Tue Jun 26, 2018 12:38 pm
Forum: Wireless Networking
Topic: Wireless disconnected, group key exchange timeout
Replies: 56
Views: 38956

Re: Wireless disconnected, group key exchange timeout

I am also seeing this problem since a few days ago, with a MT map which connects as a WDS repeater to an RB951G, which is a repeater (non-WDS) of an ISP router. It works perfectly for maybe an hour at a time and then the map disconnects and starts logging these "key exchange timeout" messages..
by nkourtzis
Fri May 25, 2018 1:49 am
Forum: Announcements
Topic: v6.43rc [release candidate] is released!
Replies: 557
Views: 108061

Re: v6.43rc [release candidate] is released!

Hi Normis. Mikrotik must implement automated tests ASAP. You must stop breaking things even in rc versions. The only way to make high quality software is doing a lot of test...since unit test, integration test, UI test, E2E test, etc. Launch a new version (even a RC) whitout automated testing is an...
by nkourtzis
Thu Apr 05, 2018 12:28 pm
Forum: Wireless Networking
Topic: CAPSMAN PMKSA caching for faster roaming
Replies: 0
Views: 435

CAPSMAN PMKSA caching for faster roaming

Hello Mikrotik, I was wondering whether PMKSA caching (or any other similar mechanism) would be considered for implementation in CAPSMAN, in order to make roaming of clients between CAPs faster. Fast roaming is essential in areas with many access points, if say a skype call or other such app is ongo...
by nkourtzis
Wed Mar 21, 2018 1:21 am
Forum: Announcements
Topic: Significant improvement for wireless Nv2 PtMP
Replies: 245
Views: 49958

Re: Significant improvement for wireless Nv2 PtMP

This is a welcome improvement but: NV2 has been neglected for very long and needs A LOT of care from the MkTik devs. This version shows that it can be done, it can be improved. Interference mitigation (NV2 is VERY sensitive to noise even with one client) and better compatibility with 802.11ac should...
by nkourtzis
Wed Mar 14, 2018 12:43 am
Forum: Wireless Networking
Topic: Type of equipments (AP) needed for hotspot over 1000 users?
Replies: 9
Views: 2041

Re: Type of equipments (AP) needed for hotspot over 1000 users?

The area to be covered is important to know. If the people are to be densely packed (say, a concert or a stadium) then as the fellow forumer above said, you'd better deploy high-density APs such as from the brands mentioned and then use a CCR1016 to do the routing. What you are saying about L4 Licen...
by nkourtzis
Fri Mar 09, 2018 4:28 pm
Forum: Wireless Networking
Topic: Question About DynaDish 5 low bandwidth
Replies: 9
Views: 1146

Re: Question About DynaDish 5 low bandwidth

Your CCQ is VERY low. This most probably shows that your channel is too noisy. Try changing frequency.
by nkourtzis
Fri Mar 09, 2018 4:17 pm
Forum: Wireless Networking
Topic: Any chance to see NV3?
Replies: 24
Views: 2908

Re: Any chance to see NV3?

I have been using NV2 for years, as it is the only way to alleviate the "hidden node effect" when using Mikrotik WiFi. Unfortunately, from the original Omnitik until the NetMetal, each upgrade which was supposed to make NV2 better, made it worse, at least in my scenarios (town-area wlan). Extreme vu...
by nkourtzis
Mon Mar 05, 2018 10:46 pm
Forum: Wireless Networking
Topic: Xiaomi phone low Wifi TX rate [SOLVED]
Replies: 112
Views: 25183

Re: Xiaomi phone low Wifi TX rate [SOLVED]

I have read through the topic and is clear to me that Mikrotik via Normis as representative, is either lying or the Mikrotik developers really have no much idea about wifi, although they are supposedly writing code for wifi devices. Both possibilities are really sad and show that anyone who takes wi...
by nkourtzis
Mon Feb 12, 2018 9:58 pm
Forum: Announcements
Topic: v6.42rc [release candidate] is released!
Replies: 538
Views: 92672

Re: v6.42rc [release candidate] is released!

Nstreme-plus is almost the same Nstreme protocol but with some additional tweaks to get better compatibility with latest ARM based wireless chipset hardware that we started to release recently. That's exactly what we feared again only patchwork and no innovation Mate, Mikrotik is mainly routing. Wi...
by nkourtzis
Sat Feb 10, 2018 9:23 pm
Forum: Announcements
Topic: v6.42rc [release candidate] is released!
Replies: 538
Views: 92672

Re: v6.42rc [release candidate] is released!

Dear Mikrotik, Thank you for including the option for automatic upgrade of the bootloader. Since the new version numbering scheme for routerboot was introduced, this option was the only sensible thing to include. Can you also though make it automatically perform the second -required- reboot? From th...
by nkourtzis
Sat Jan 06, 2018 11:57 pm
Forum: Announcements
Topic: v6.42rc [release candidate] is released!
Replies: 538
Views: 92672

Re: v6.42rc [release candidate] is released!

IGMP Snooping problems experienced with 6.41 and still present in 6.42rc: - Very high traffic volume (~90Mbps) without apparent reason (VMs were not moving much data) on interfaces connecting Proxmox cluster nodes (hypervisors). During this time of high traffic, some node heartbeats were missed and ...
by nkourtzis
Wed Dec 06, 2017 4:19 pm
Forum: Announcements
Topic: v6.41rc [release candidate] is released! New bridge implementation!
Replies: 561
Views: 120106

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

Dears at Mikrotik, PLEASE PLEASE PLEASE revert the Routerboot numbering following the ROS version numbers, or at least make the ROS upgrade process to automatically upgrade Routerboot also. Performing two reboots per unit on each version upgrade in order to keep both up-to-date, without knowing whet...
by nkourtzis
Thu Nov 30, 2017 11:35 am
Forum: Announcements
Topic: v6.41rc [release candidate] is released! New bridge implementation!
Replies: 561
Views: 120106

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

New bridge implementation need: Hardware LACP bonding. Hardware setting per port of learning mode for mac-adresses max number and what to do when max is reached and or port/device restarted. per port ingress and egress hardware rate limiting. dhcp snooping with guard arp snooping with guard Option ...
by nkourtzis
Tue Nov 28, 2017 3:07 pm
Forum: Announcements
Topic: v6.41rc [release candidate] is released! New bridge implementation!
Replies: 561
Views: 120106

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

Dear all, has the development of ROS slowed down or is it my wrong impresion? One RC sub-version every one to two weeks where it used to be every two to three days and even then, very sparse changelog. Even this thread has become relatively quiet. Can it possibly be that we approaching the end of v6...
by nkourtzis
Mon Nov 27, 2017 12:24 pm
Forum: Announcements
Topic: v6.41rc [release candidate] is released! New bridge implementation!
Replies: 561
Views: 120106

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

*) wireless - added passive scan option for wireless scan mode; Any info about this? passive scan has been implemented for a long time It's not clear, from the changelog, but: If I remember it right, Mikrotik didn't support passive scan with 802.11ac, only b, g, n. Maybe this is it, at long last. :...
by nkourtzis
Mon Nov 13, 2017 11:37 am
Forum: Beginner Basics
Topic: Wireless bridge and DHCP
Replies: 8
Views: 5964

Re: Wireless bridge and DHCP

Hi, I came up to the exact same issue using hap lite as a pseudo bridge. Clients on ether1 to ether5 interfaces do not get an IP for the main DHCP server. Have you found a solution? thank you in advance. # nov/10/2017 17:13:52 by RouterOS 6.39.3 # software id = P8D8-25ZP # /interface bridge add nam...
by nkourtzis
Sun Nov 05, 2017 1:02 am
Forum: RouterBOARD hardware
Topic: MicroSD card max speed in RB1100AHx4
Replies: 2
Views: 790

Re: MicroSD card max speed in RB1100AHx4

No replies? Nothing?
by nkourtzis
Sun Nov 05, 2017 1:01 am
Forum: RouterBOARD hardware
Topic: Fan installation in RB1100AHx4
Replies: 3
Views: 818

Re: Fan installation in RB1100AHx4

Anyone?
by nkourtzis
Sun Nov 05, 2017 1:00 am
Forum: RouterBOARD hardware
Topic: What mikrotik to buy?
Replies: 2
Views: 557

Re: What mikrotik to buy?

From these three, the RB1100AHx4 is certainly the best in performance without being very far from the others in terms of cost. But what is most essential is what use you will make of it. Because depending form it, even the 3011 may be overkill.
by nkourtzis
Mon Oct 30, 2017 3:33 pm
Forum: RouterBOARD hardware
Topic: MicroSD card max speed in RB1100AHx4
Replies: 2
Views: 790

MicroSD card max speed in RB1100AHx4

Hello, I want to use a MicroSD card in RB1100AHx4 (NOT the Dude edition) for Dude storage. I have two questions: 1. What is the maximum SD card size the device can handle? 2. What is the maximum SD card speed category the device supports? Class 10, UHS1, UHS3, V30, V60, V90? Thank you in advace for ...
by nkourtzis
Mon Oct 30, 2017 3:21 pm
Forum: RouterBOARD hardware
Topic: Fan installation in RB1100AHx4
Replies: 3
Views: 818

Fan installation in RB1100AHx4

Hello, I just got an RB1100AHx4 (NOT the Dude edition) and I see there are fan grilles in the case and a 2-pin header. Since I will be running the router overclocked and on a mountain, I wonder if I can install a 3-pin 5V 4x4x2cm fan in the case. I am thinking about this one: http://noctua.at/en/nf-...
by nkourtzis
Fri Jul 07, 2017 3:40 pm
Forum: Announcements
Topic: v6.40rc [release candidate] is released! (New bridge implementation delayed till 6.41rc)
Replies: 207
Views: 34735

Re: v6.40rc [release candidate] is released! (New bridge implementation)

Thank you guys for delivering (actually over-delivering) on your promises! Please take your time to debug 6.40 before releasing it, since it is quite a big upgrade with lots of potential for bugs. And please, create a GUI for the new bridge implementations!

Keep up the good work!
by nkourtzis
Wed Jun 14, 2017 2:56 pm
Forum: RouterBOARD hardware
Topic: Powerful Wave 2 routers - when to expect?
Replies: 2
Views: 818

Powerful Wave 2 routers - when to expect?

Hello, As 802.11ac Wave 2 routers have hit the market, I wonder when we can expect to see a routerboard based on latest hadware such as Qualcomm's IPQ8069 processor and QCA9994 wifi chip. These two are real beasts in terms of processing horsepower and bandwidth. The processor has four cores clocked ...
by nkourtzis
Fri May 26, 2017 5:07 pm
Forum: Announcements
Topic: v6.40rc [release candidate] is released!
Replies: 231
Views: 44328

Re: v6.40rc [release candidate] is released!

*) wireless - reduced load on CPU for high speed wireless links;
Can you elaborate on this? What types of links are benefited and by how much?
Reduced 802.11ac load on processor. This may reduce processor usage for other protocols too.
Can this mean that NV2 on 802.11ac will also run better?
by nkourtzis
Fri May 26, 2017 4:54 pm
Forum: Announcements
Topic: v6.40rc [release candidate] is released!
Replies: 231
Views: 44328

Re: v6.40rc [release candidate] is released!

*) wireless - reduced load on CPU for high speed wireless links;
Can you elaborate on this? What types of links are benefited and by how much?
by nkourtzis
Tue May 16, 2017 12:25 pm
Forum: Announcements
Topic: v6.40rc [release candidate] is released!
Replies: 231
Views: 44328

Re: v6.40rc [release candidate] is released!

Version 6.40rc6 has been released. What's new in 6.40rc6 (2017-May-11 12:53): *) wireless - added option to change "nv2-downlink-ratio" for nv2 protocol (CLI only); *) wireless - added option to set "fixed-downlink" mode for nv2 protocol (CLI only) Mikrotik devs, well done! Thank you for finally gi...
by nkourtzis
Fri Apr 21, 2017 8:18 pm
Forum: RouterOS v6 RC and v7 BETA
Topic: v6.39rc80 [release candidate] is released!
Replies: 63
Views: 10444

Re: v6.39rc76 [release candidate] is released!

Another problem I saw in the 6.39RC is that the script for updating DynDNS (not the builtin "cloud" menu), taken from the wiki (https://wiki.mikrotik.com/wiki/Dynamic_DNS_Update_Script_for_dynDNS) stopped working after years without a problem. I have traced it down to the update statement, which use...
by nkourtzis
Fri Apr 21, 2017 8:07 pm
Forum: RouterOS v6 RC and v7 BETA
Topic: v6.39rc80 [release candidate] is released!
Replies: 63
Views: 10444

Re: v6.39rc76 [release candidate] is released!

Please provide a method of restoring previous STP mode, whereby Router OS would exclusively transmit and process BPDUs on (R)STP bridge ports. I understand MikroTik removing VLAN tags from STP BPDU frames when people create VLANs on bridges, as in: int vlan add name=vlanXXX interface=bridge vlan-id...
by nkourtzis
Mon Apr 10, 2017 5:26 pm
Forum: RouterBOARD hardware
Topic: RB750Gr3 througput
Replies: 5
Views: 1604

Re: RB750Gr3 througput

The only thing that I would be a bit concerned about is the IPTV part. This means traffic prioritisation and performance in this will depend hugely on what rules you use to classify traffic. Otherwise, 500 Mbps should be no problem. I have seen the RB951G-2HnD (which is significantly less powerful t...