Community discussions

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by tgrand
Tue Mar 19, 2019 9:08 pm
Forum: Forwarding Protocols
Topic: bgp prefered route
Replies: 3
Views: 377

Re: bgp prefered route

I have figured it out.
turns out the more specific route (ie. largest netmask or smallest subnet) is chosen over the larger subnet.
I have to filter the routes to discard smaller subnets from the prefix.
by tgrand
Tue Mar 19, 2019 8:30 pm
Forum: Forwarding Protocols
Topic: bgp prefered route
Replies: 3
Views: 377

bgp prefered route

I have 2 bgp peers which advertise the same ASN. Peer 1 advertises a single /20 Peer 2 advertises a /20 and several /24s I have set the distance of the peer 1 routes to a lower value, yet the routes still prefer peer 2. It seems to prefer the smaller subnet first. I would like to prefer the peer 1 r...
by tgrand
Wed Mar 06, 2019 5:04 pm
Forum: General
Topic: keys not working
Replies: 1
Views: 151

Re: keys not working

The router I am installing has no video so ROS was installed on an x86 device which has video but ethernets are not recognized. I was pasting the key after moving the drive to the headless router. I installed the drive back into the original x86 device, manually entered the key, and it worked. Moved...
by tgrand
Wed Mar 06, 2019 4:39 pm
Forum: General
Topic: keys not working
Replies: 1
Views: 151

keys not working

New x86 based router, installed ROS6.44 from ISO, and purchased new L6 license key.
Paste/Import key several times, and every time it reports no valid license.

Any suggestions as support seems to be having problems replying to me.
by tgrand
Wed Jan 30, 2019 4:35 pm
Forum: RouterBOARD hardware
Topic: CRS328-24P-4S+ problems with performance
Replies: 1
Views: 343

Re: CRS328-24P-4S+ problems with performance

Turns out after rebooting my PC everything works fine again. Once I reboot the CRS328 the problem returns and I must reboot any devices attached to it to clear the problem. When the problem is present, Torching the SFP+ port connected to our main router, cures the problem while torch is running. Thi...
by tgrand
Tue Jan 29, 2019 8:50 pm
Forum: RouterBOARD hardware
Topic: CRS328-24P-4S+ problems with performance
Replies: 1
Views: 343

CRS328-24P-4S+ problems with performance

In my personal office I replaced an RB4011 which I was using as a switch, to a CRS328-24P-4s+. The new CRS328 is connected to an CCR1072-1G-8S+, through a pair of 10G transceivers and SM fiber. On the CRS328 I have a bridge with the SFP+ port added as a port as well as 1 ethernet port. My PC is conn...
by tgrand
Wed Feb 28, 2018 1:24 am
Forum: The Dude
Topic: Cannot log into Dude after Upgrade to 6.40.2
Replies: 2
Views: 474

Re: Cannot log into Dude after Upgrade to 6.40.2

All good now..
My apologies........
by tgrand
Wed Feb 28, 2018 1:18 am
Forum: The Dude
Topic: Cannot log into Dude after Upgrade to 6.40.2
Replies: 2
Views: 474

Re: Cannot log into Dude after Upgrade to 6.40.2

I managed to log in but notice that Winbox is missing from the tools menu.
How can I add it back?
by tgrand
Wed Feb 28, 2018 1:10 am
Forum: The Dude
Topic: Cannot log into Dude after Upgrade to 6.40.2
Replies: 2
Views: 474

Cannot log into Dude after Upgrade to 6.40.2

I recently upgraded From ROS 6.3something to 6.40.2.
Now I can not log into the dude using any user/passwords.
I continually get login failed: invalid user name or password (6)
by tgrand
Thu Oct 26, 2017 10:21 pm
Forum: Forwarding Protocols
Topic: DDOS BGP protection [automate communitys?]
Replies: 13
Views: 4822

Re: DDOS BGP protection [automate communitys?]

Flow analysis is just not fast enough to detect most DDOS attacks. We use Wanguard from andrisoft. Fiber from our uplinks first goes through an optic splitter and from the splitter out1 goes to our border router and out2 goes to an optic transceiver which Wanguard uses to sniff the packets in real t...
by tgrand
Fri Aug 11, 2017 9:32 pm
Forum: RouterBOARD hardware
Topic: CRS317-1G-16S+RM: CWDM/DWDM SFP+ optics? [SOLVED]
Replies: 12
Views: 2687

Re: CRS317-1G-16S+RM: CWDM/DWDM SFP+ optics? [SOLVED]

Most sfp manufacturers and distributors provide samples.
Request a sample and test.
I have personally not come across any that do not work....
by tgrand
Fri Jul 28, 2017 8:40 pm
Forum: Wireless Networking
Topic: NV2 Sync
Replies: 5
Views: 1262

Re: NV2 Sync

What happens to a slave on DFS, when a master on DFS must change channels or vice versa?

does the slave get hung out to dry??
by tgrand
Wed Jul 19, 2017 9:51 pm
Forum: Wireless Networking
Topic: NV2 Sync
Replies: 5
Views: 1262

NV2 Sync

Can somebody at Mikrotik please confirm: As I understand it the APs have to either have GPS, or be on the same subnet, or both, in order to sync. If GPS is required then I would have to assume that a USB GPS device needs to be added. If neither is necessary, then please explain how they can magicall...
by tgrand
Tue May 09, 2017 12:01 am
Forum: General
Topic: DHCPV6 and PPPOE problem with Dynamic Servers
Replies: 0
Views: 295

DHCPV6 and PPPOE problem with Dynamic Servers

When a CPE has gone down for whatever reason the pppoe session is closed, however the dynamic server remains with an unknown interface. When the pppoe session is attempts to reconnect, it fails because the pool is already exists. This appears to be an inherent problem for making IPV6 work over pppoe...
by tgrand
Fri Aug 26, 2016 5:32 pm
Forum: General
Topic: ROS v6 x86 and SFP cards (Problems?)
Replies: 3
Views: 730

Re: ROS v6 x86 and SFP cards (Problems?)

This is the Complete history of the problem. I use eoip runnels often and never have had problems with them. Recently I created on which did not transport data. The tunnel was from a CCR1072 across an x86 with ROS to another x86 ROS router. When I could not get the EOIP tunnel moving traffic I creat...
by tgrand
Thu Aug 25, 2016 4:53 pm
Forum: General
Topic: ROS v6 x86 and SFP cards (Problems?)
Replies: 3
Views: 730

Re: ROS v6 x86 and SFP cards (Problems?)

The MTU is set 4 1500. If it were in fact the MTU the IP ping would have not gotten replies either. I am simply asking if anyone with an x86 with ROS 6 and sfp ports can verify this behaviour. The sfp card I have is a hotlava 4 port sfp card. Routers in question are the Maxxwave Corei7 Router as wel...
by tgrand
Wed Aug 24, 2016 9:46 pm
Forum: General
Topic: ROS v6 x86 and SFP cards (Problems?)
Replies: 3
Views: 730

ROS v6 x86 and SFP cards (Problems?)

I have a few x86 routers using ROS v6 (6.34, 6.32, and 6.36). All of them have SPF cards. When I ping 1500 byte packets via IP the pings are replied too. When I MAC ping 1500 byte packets the pings timeout. If I lower the packet size to 498 bytes the MAC pings are replied too. Can anyone confirm thi...
by tgrand
Wed Jun 29, 2016 7:24 pm
Forum: General
Topic: pppoe disconnects and log REQUEST
Replies: 0
Views: 355

pppoe disconnects and log REQUEST

Would it be too much to ask, if the log for a disconnection of a pppoe connection can include the server it disconnected from.
This would make diagnostics much easier.
by tgrand
Tue Apr 19, 2016 7:36 pm
Forum: General
Topic: v6.35 [current] is released!
Replies: 103
Views: 24434

Re: v6.35 [current] is released!

My CCR1036-8G-2S+ had problem also.
Problem was with ether1 and sfpplus1.
Still broken even after downgrade.
my MTU is set for 1500
by tgrand
Tue Apr 19, 2016 1:41 am
Forum: General
Topic: v6.35 [current] is released!
Replies: 103
Views: 24434

Re: v6.35 [current] is released!

I would venture to guess that the ros6.35 has problems with ethernet on CloudCore routers. I have Ether1 Flapping, which only started to flap after upgrade, the router it is connected to receives no Link Partner Advertisments. Also SFPplus1 was set to No Autonegotiate at 1gps, after upgrade it must ...
by tgrand
Mon Aug 17, 2015 9:13 pm
Forum: General
Topic: rx code error (what is this?)
Replies: 0
Views: 1058

rx code error (what is this?)

rx code error

Was wondering what this error reports.

I have seen fcs-errors while getting no rx code errors so obviously not crc related, or am I wrong?
by tgrand
Wed Nov 12, 2014 12:34 am
Forum: General
Topic: Feature Request: IPV6 DHCP-Client allow 2 per interface
Replies: 7
Views: 1990

Re: Feature Request: IPV6 DHCP-Client allow 2 per interface

Thanks.
That was what I needed, as until then it was only as clear as mud.
Much appreciated.
by tgrand
Wed Nov 05, 2014 10:24 pm
Forum: General
Topic: Feature Request: IPV6 DHCP-Client allow 2 per interface
Replies: 7
Views: 1990

Re: Feature Request: IPV6 DHCP-Client allow 2 per interface

OK; so now the SXT gets a /63 assigned to testpool. Now ether1 needs a /64 for PD, and another /64 is needed by the DHCPv6 server. How do you propose I split the pool? EDIT: It would probably be preferred that the Dynamic-Static be heavily weighted as opposed to 1=no weight? Dynamic-Static sounds pa...
by tgrand
Mon Oct 27, 2014 5:54 pm
Forum: General
Topic: Feature Request: IPV6 DHCP-Client allow 2 per interface
Replies: 7
Views: 1990

Re: Feature Request: IPV6 DHCP-Client allow 2 per interface

Problem is that the 2 ranges will have to be separate subnets.
1 for RA and one for DHCPv6 both on the same interface.
by tgrand
Sat Oct 25, 2014 9:27 pm
Forum: General
Topic: Feature Request: IPV6 DHCP-Client allow 2 per interface
Replies: 7
Views: 1990

Re: Feature Request: IPV6 DHCP-Client allow 2 per interface

I can put the DHCP-Client on the Wireless interface and have a second DHCPv6 server on the pppoe-servers bridge. The problem with this is the Dynamic Static route with a distance of 1. Why not let OSPFv3 do the routing? or have an option in the DHCP server to not create Dynamic Static route for assi...
by tgrand
Sat Oct 25, 2014 8:50 pm
Forum: Forwarding Protocols
Topic: BGP - Too many advertisements
Replies: 4
Views: 2134

Re: BGP - Too many advertisements

Yes winbox takes too long to populate the list.
You have the option to see them all, or you can filter to find the ones you are interested in.

My most popular filter is Prefix and in XXX.XXX.XXX.XXX/XX.
Fill in the subnet and it will list all advertisements for any ranges within that range.
by tgrand
Sat Oct 25, 2014 8:31 pm
Forum: General
Topic: Feature Request: IPV6 DHCP-Client allow 2 per interface
Replies: 7
Views: 1990

Feature Request: IPV6 DHCP-Client allow 2 per interface

I have Mikrotik Clients (SXT) which connect with pppoe. The client then assigns IPv4 and IPV6 addresses to the users home routers. The home routers I have encountered require both PD and DHCPv6 addresses to work with IPV6. I would like to have 2 dhcp clients on my pppoe-out interface so that the SXT...
by tgrand
Wed Oct 22, 2014 10:23 am
Forum: Wireless Networking
Topic: Metal 2 shpn Problem in WIFI
Replies: 151
Views: 82309

Re: Metal 2 shpn Problem in WIFI

I've tossed all my metalSHPn2's in the garbage.
by tgrand
Wed Oct 22, 2014 8:53 am
Forum: General
Topic: Link / No Link issues
Replies: 5
Views: 1286

Re: Link / No Link issues

Can happen on Tik, Cisco, UBNT, Brocade, etc.
by tgrand
Fri Oct 17, 2014 9:42 pm
Forum: Wireless Networking
Topic: Heterodyning in wireless networks?
Replies: 2
Views: 838

Re: Heterodyning in wireless networks?

Using 10MHz wide channels aren't you?
If you were using 5MHz wide channels you would see the "ghosts" on both sides of your channel.
You can just ignore it...

EDIT:
No sorry.. I see that you are using 20 wide.
Have never seen this on 20MHz wide channels.
by tgrand
Fri Oct 17, 2014 9:15 pm
Forum: General
Topic: Link / No Link issues
Replies: 5
Views: 1286

Re: Link / No Link issues

Go to the interface you see this on using winbox and have a look at the RX Stats tab.
Are there FCS errors?
If so check cables, Ends, Arrestors, POEs, etc.
Try gently cleaning the pins and wires on Ethernet ports and ends with a BURNISHING BRUSH.
If all else fails try a new ethernet port.
by tgrand
Fri Oct 17, 2014 8:22 pm
Forum: General
Topic: Test racks
Replies: 75
Views: 24625

Re: Test racks

It is considered poor behavior to compliment on ones RACK.

LOL
by tgrand
Fri Oct 17, 2014 8:16 pm
Forum: General
Topic: DDoS Mitigation - Bandwidth Depletion
Replies: 4
Views: 1171

Re: DDoS Mitigation - Bandwidth Depletion

viewtopic.php?f=2&t=89180
by tgrand
Fri Oct 17, 2014 8:12 pm
Forum: General
Topic: Dealing with 3 different DDOS attacks. Need suggestions
Replies: 6
Views: 1898

Re: Dealing with 3 different DDOS attacks. Need suggestions

Not sure about icmp but amplified attacks use UDP and are delivered regardless of you dropping them. This continues to flood the upstream bandwidth. I have had attacks of over 1Gps take me down, and upstream speeds unknown but took out 10Gbps upstream. The only defense is DDOS mitigation software wh...
by tgrand
Fri Oct 17, 2014 8:06 pm
Forum: General
Topic: PPPoE server with public IPs in a "private network"
Replies: 2
Views: 726

Re: PPPoE server with public IPs in a "private network"

The answer is in your routing tables.
You using ospf? if so redistribute connected routes.
by tgrand
Fri Oct 17, 2014 7:39 pm
Forum: General
Topic: IPV6 problems over pppoe
Replies: 0
Views: 605

IPV6 problems over pppoe

My setup is as follows: RB(PPPOE server) --- Ethernet --- RB(AP Sector *bridged*) --- Wireless --- RB Client(PPPOE client) Client gets a LLv6 address and a ipv6 default route to pppoe-out1 (with no gateway address) If I ping the LLv6 address of the PPPOE Server from the client through wlan interface...
by tgrand
Mon May 26, 2014 8:00 pm
Forum: General
Topic: RouterOS v6.x with Ubiquiti AirFiber 24 v2.0 - RX Error FCS
Replies: 76
Views: 28806

Re: RouterOS v6.x with Ubiquiti AirFiber 24 v2.0 - RX Error

I put a ubnt tough switch inbetween my tik and air fibre.
No more fcs errors on tik, but the tough switch reports rx errors on the port connected to the air fibre.

This is clearly an air fibre problem.
Have seen this on approx. 80% of all air fibre deployed.
by tgrand
Wed Feb 12, 2014 9:11 pm
Forum: The User Manager
Topic: Which Billing System Is The Best ???
Replies: 75
Views: 60223

Re: Which Billing System Is The Best ???

WHMCS works great.
Just have to do some scripting and customization using mikrotik APIs and all is good.
Our WHMCS portal provides daily usage summary.
Invoices bill for bandwidth overages etc.
by tgrand
Fri Aug 16, 2013 12:41 am
Forum: Wireless Networking
Topic: 5.17 NV2 key exchange timeout
Replies: 12
Views: 4768

Re: 5.17 NV2 key exchange timeout

Saw this a few times.

What I saw for me was that there was a typo in the NV2 Security Key.
(Actually it was an uppercase lowercase issue)
by tgrand
Fri Jul 19, 2013 5:49 am
Forum: Wireless Networking
Topic: Ptp Nv2/WDS DataRates 270Mbps slow internet
Replies: 16
Views: 4587

Re: Ptp Nv2/WDS DataRates 270Mbps slow internet

Why use WDS?
5.24 supports does bridging. The station should be set to Sation Bridge.
by tgrand
Sun Jul 14, 2013 12:43 am
Forum: RouterBOARD hardware
Topic: RB912G little Tin Cans?
Replies: 4
Views: 1202

RB912G little Tin Cans?

Ordered some RB912G boards for the first time.
They include 2 little tin can looking things; What are they?
by tgrand
Wed Jul 03, 2013 6:03 pm
Forum: RouterBOARD hardware
Topic: RB2011 freeze
Replies: 49
Views: 14593

Re: RB2011 freeze

several older RB2011LS-IN routers deployed with no issues. Have recently purchased and deployed a few RB2011L-IN routers and these routers are doing just that. They will route traffic then after a several hours to days the Gigabit Switch group seems to disconnect from the CPU and begins switching al...
by tgrand
Sat Apr 20, 2013 6:27 pm
Forum: General
Topic: Dealing with massive DDoS
Replies: 5
Views: 5138

Re: Dealing with massive DDoS

Wow we took an attack at 800Mbps UDP port 0.
Only way to combat, is to have the attacked on your local address space blocked further upstream.
by tgrand
Fri Apr 05, 2013 10:51 pm
Forum: RouterBOARD hardware
Topic: Raspberry Pi buffering video problem on RB750GL
Replies: 14
Views: 5595

Re: Raspberry Pi buffering video problem on RB750GL

You sure it is not just the raspberry PI not having enough of its own resources?
by tgrand
Fri Apr 05, 2013 10:49 pm
Forum: RouterBOARD hardware
Topic: mipsbe boards only allow max MTU of 1520???
Replies: 5
Views: 1958

Re: mipsbe boards only allow max MTU of 1520???

There should be enough CPU resource on most boards to do an EOIP tunnel (router to router) which can handle much larger MTU.
by tgrand
Mon Feb 11, 2013 8:45 pm
Forum: General
Topic: feature request : 1-wire temperature sensor DS18B20 /RS232
Replies: 9
Views: 5196

Re: feature request : 1-wire temperature sensor DS18B20 /RS2

Just needs 4 diodes and 1 resistor.
You can talk with these devices through any rs232 interface.

What would be nice, is an api to add monitors to routerOS snmp.
by tgrand
Fri Dec 14, 2012 4:48 am
Forum: RouterBOARD hardware
Topic: CLOUD CORE ROUTER
Replies: 1374
Views: 1014002

Re: CLOUD CORE ROUTER

I'm sure that the world will come to an end for some.
After all the world comes to an end for some at the end of each one of our calendar cycles.

Excessive partying!!!
by tgrand
Wed Nov 21, 2012 3:50 pm
Forum: General
Topic: v6rc3 cable test feature.
Replies: 13
Views: 3619

Re: v6rc3 cable test feature.

Kewl.
by tgrand
Wed Nov 21, 2012 2:21 pm
Forum: General
Topic: v6rc3 cable test feature.
Replies: 13
Views: 3619

v6rc3 cable test feature.

I have installed v6rc3 on a RB2011LS.
According to the latest newsletter this RB supports the new cable-test feature.
When I monitor as per the newsletter, no length/open/short information is displayed.
by tgrand
Wed Sep 19, 2012 4:47 pm
Forum: Wireless Networking
Topic: Did RB711-5Hn connect wavion???
Replies: 7
Views: 1381

Re: Did RB711-5Hn connect wavion???

The Wavion has settings to hide the ssid just as any other AP. Be sure to also use 802.11 as the protocol. Use RTS/CTS on the client also. Your best to set the SSID manually. When scanning, you may not see the AP at a very high signal level as the Wavion must establish the parameters for a beam, and...
by tgrand
Tue Sep 18, 2012 3:34 pm
Forum: Wireless Networking
Topic: Wireless Mode for PPPoE
Replies: 1
Views: 499

Re: Wireless Mode for PPPoE

Just create a bridge and add the wlan interface and ether interface to the bridge.
use wireless mode station bridge on the client.
by tgrand
Mon Sep 17, 2012 6:34 pm
Forum: Wireless Networking
Topic: Multiple power supplies
Replies: 47
Views: 12570

Re: Multiple power supplies

Not sure that you would need diodes as the chargers should already have as to prevent feedback from the batteries.
by tgrand
Sat Sep 15, 2012 8:05 pm
Forum: General
Topic: Passing Public IP
Replies: 3
Views: 557

Re: Passing Public IP

setup pppoe server on each pop which hands out public IPs.
use ospf to route the public IPs over your private ip routes.
At your gateway nat everything that is not a public IP.
by tgrand
Thu Sep 13, 2012 6:36 pm
Forum: Wireless Networking
Topic: Did RB711-5Hn connect wavion???
Replies: 7
Views: 1381

Re: Did RB711-5Hn connect wavion???

do you have the SSID on the wavion configured as "MikroTik"??
Probably not!
by tgrand
Thu Sep 13, 2012 6:33 pm
Forum: General
Topic: Android 2.34 and MT hotspot problem
Replies: 6
Views: 2753

Re: Android 2.34 and MT hotspot problem

Does not seem to work when using WPA2.

edit: I beleive it to be a bug with the phones.
by tgrand
Sat Jun 16, 2012 8:51 pm
Forum: General
Topic: New Ethernet port flap issue enquiery, PLS JOIN!
Replies: 247
Views: 85367

Re: New Ethernet port flap issue enquiery, PLS JOIN!

Has anyone with this problem simply tryed to recompress the pins on the cat5 connectors?
Have seen many a cable test good then not be able move current, and all the time having to do with loosed pins on the cat5 ends.
by tgrand
Sat Jun 09, 2012 7:19 pm
Forum: RouterBOARD hardware
Topic: Any plans for 10Ghz,17Ghz,24Ghz??
Replies: 23
Views: 9844

Re: Any plans for 10Ghz,17Ghz,24Ghz??

An FPGA is a logic device not applicable to radio communications directly.
A DSP on the other hand could be applicable.
by tgrand
Thu May 17, 2012 11:03 pm
Forum: Wireless Networking
Topic: Electrical HT Line Interference Problem?
Replies: 1
Views: 1240

Re: Electrical HT Line Interference Problem?

Cracked insulators on the power lines can cause arcing which can impact a link. Power lines themselves can but not to the extent that you describe. Sounds like something is not quite right with your link. With the equipment you have outlined you should be able to acheive those signal levels at many ...
by tgrand
Tue May 08, 2012 9:40 pm
Forum: General
Topic: Storms keep destroying my network! Please help!
Replies: 3
Views: 510

Re: Storms keep destroying my network! Please help!

Shielded Cat5 cable is also recommended.
by tgrand
Tue May 08, 2012 9:38 pm
Forum: General
Topic: improve wake on lan
Replies: 8
Views: 7107

Re: improve wake on lan

Here is a PHP script which does Wake on Lan Version 2.

This should clear the air on this.
by tgrand
Tue May 08, 2012 4:25 am
Forum: General
Topic: Mikrotik Router DDoS attack
Replies: 32
Views: 8558

Re: Mikrotik Router DDoS attack

Winbox from my perspective is for management and should not be available to ANY ip source addresses.

Do this to any management protocol at your own risk.
by tgrand
Mon Apr 23, 2012 3:25 am
Forum: Wireless Networking
Topic: 802.11n at 300Mbps (finally working)
Replies: 2
Views: 3761

Re: 802.11n at 300Mbps (finally working)

Order yourself some attenuators to attenuate your signals on both ends of the link.
By doing this you increase the polar seperation and end up with much better CCQ.
by tgrand
Mon Apr 16, 2012 5:10 pm
Forum: Wireless Networking
Topic: What's the purposes of the netflow in the Routerboard...
Replies: 1
Views: 561

Re: What's the purposes of the netflow in the Routerboard...

Netflow can be used with products such as Plixers Scrutinizer, and any other Flow based analyzers.
by tgrand
Mon Apr 16, 2012 5:06 pm
Forum: General
Topic: Comments on 6.0b1
Replies: 6
Views: 4049

Re: Comments on 6.0b1

It works great so far.
Resource usage is WAY down in comparison to V4 and V5 flavours.
by tgrand
Sat Apr 14, 2012 12:37 am
Forum: General
Topic: How i can routing Publics IP without NAT
Replies: 3
Views: 893

Re: How i can routing Publics IP without NAT

If you use pppoe you the client will get a /32 (a single IP).
This IP as routed via OSPF, allowing you to use x.x.x.1-x.x.x.254 to assign to your clients.
by tgrand
Wed Apr 04, 2012 8:52 pm
Forum: Wireless Networking
Topic: Connection looks good but no data passing thru???! v5.13/.14
Replies: 10
Views: 1825

Re: Connection looks good but no data passing thru???! v5.13

affects too many manufacturers to be a driver issue.
by tgrand
Tue Apr 03, 2012 6:30 pm
Forum: Wireless Networking
Topic: Connection looks good but no data passing thru???! v5.13/.14
Replies: 10
Views: 1825

Re: Connection looks good but no data passing thru???! v5.13

Are these 2.4GHz links or 5GHz?
If 2.4 then it is an Atheros problem.
Seems to be a datarate issue when using atheros 2.4N.
by tgrand
Sat Jan 14, 2012 3:51 am
Forum: Wireless Networking
Topic: Wireless Antenna output problem
Replies: 9
Views: 1616

Re: Wireless Antenna output problem

Sounds to me like your measure you distance at ground level.
If so then you are most certainly overshooting, if it is at 80feet.
Is it a laptop you are testing with?
by tgrand
Mon Jan 02, 2012 4:27 am
Forum: Wireless Networking
Topic: NV2 jitter issue (1%loss)
Replies: 6
Views: 2758

Re: NV2 jitter issue (1%loss)

Try changing tx-power to - card rates 5db.
Do this at both ends and retest.
by tgrand
Sat Dec 24, 2011 2:45 am
Forum: RouterBOARD hardware
Topic: RB750UP questions/suggestions
Replies: 108
Views: 26572

Re: RB750UP questions/suggestions

Perhaps there are no regulators......
by tgrand
Thu Dec 22, 2011 2:54 pm
Forum: RouterBOARD hardware
Topic: How do you ground shielded cable?
Replies: 18
Views: 9219

Re: How do you ground shielded cable?

grounding loops are cause due to a potential difference from one ground point to another ground point. This is due to resistance at the point(s) of connection.(ie. Bolt points of a tower) To avoid grounding loops in audio many installers will solder connectors following crimping. Oxidation on connec...
by tgrand
Thu Dec 22, 2011 3:18 am
Forum: RouterBOARD hardware
Topic: How do you ground shielded cable?
Replies: 18
Views: 9219

Re: How do you ground shielded cable?

The dc power supplies are isolated from ground due to the decoupling of the transformer. The transformer is then grounded directly to the power companies ground. The only reason for grounding loops would be poor conductance of the ground, ie. Relying on the bolted sections of a tower to ground. Ulti...
by tgrand
Thu Dec 22, 2011 3:09 am
Forum: RouterBOARD hardware
Topic: RB750UP questions/suggestions
Replies: 108
Views: 26572

Re: RB750UP questions/suggestions

It only supplies what the device needs, not what the power supply can provide.
by tgrand
Thu Dec 22, 2011 2:44 am
Forum: RouterBOARD hardware
Topic: RB750UP questions/suggestions
Replies: 108
Views: 26572

Re: RB750UP questions/suggestions

2.5 amp power supply.
2500 -500 approx. = 2000 mA
2000 / 500 = 4 ports

could the limit be only due to the power supply?
by tgrand
Thu Dec 22, 2011 2:16 am
Forum: General
Topic: Two PPoE clients on the same RB.
Replies: 1
Views: 285

Re: Two PPoE clients on the same RB.

The mac addresses will be different for each ether interface so that not likely the problem.
The problem is most likely the profile for each pppoe-client is default.
or possibly the default route having to paths to the same gateway.
by tgrand
Thu Dec 15, 2011 7:52 pm
Forum: Wireless Networking
Topic: Basic wireless questions
Replies: 8
Views: 1490

Re: Basic wireless questions

On the AP what type of radio card are you using?
Is it an N card?
by tgrand
Tue Nov 08, 2011 5:53 am
Forum: Wireless Networking
Topic: RB711 VS RB411
Replies: 16
Views: 2555

Re: RB711 VS RB411

711 appears to out perform the 411 from all testing I've done.

certainly boots a heck of a lot faster ;P
by tgrand
Fri Nov 04, 2011 3:13 am
Forum: RouterBOARD hardware
Topic: solar charge controller without the solar?
Replies: 10
Views: 5650

Re: solar charge controller without the solar?

Use a smart charger to charge the battery banks. On the load side use a Xantrex controller as a load controller to protect the batteries. There are 2 point of views on the load controller and protection of batteries. My view... Better to protect your investment in batteries, for the few minutes you'...
by tgrand
Thu Nov 03, 2011 6:15 am
Forum: The User Manager
Topic: Add profile to user via Console/API/Script
Replies: 29
Views: 23719

Re: Add profile to user via Console/API/Script

Before they do any changes, they must first clean things up. The User-Manager still continues to use 2 databases. Try clearing stats in web, and you will notice the stats in the console continue to accumulate without having been cleared. Lots and Lots of clean-up to do. As well User-Manager developm...
by tgrand
Tue Oct 04, 2011 7:11 am
Forum: The User Manager
Topic: Transferin the users from the user manager V 3.22 to 5.5
Replies: 5
Views: 1473

Re: Transferin the users from the user manager V 3.22 to 5.5

That is the worst advise possible!!!
You have obviously NEVER tryed this......


You can attempt this, however, be prepared for hours (possibly days in our case) of adding profiles for each user through the web interface (the only way).
by tgrand
Wed Sep 07, 2011 7:00 am
Forum: Wireless Networking
Topic: Calculate max wireless distance.
Replies: 51
Views: 10371

Re: Calculate max wireless distance.

power is constant. it is like having a litre of water pour it into a wide glass and the level of the water is low; pour it into a narrow glass and the water level is high. Get a simple book on audio amplifiers and get a grasp of power, it really is simple. 10db using a 5MHz channel is going be relat...
by tgrand
Wed Sep 07, 2011 6:40 am
Forum: Wireless Networking
Topic: New set dual polarity antenna doubts. Please suggest.
Replies: 4
Views: 897

Re: New set dual polarity antenna doubts. Please suggest.

Check that you are using both chains for tx as well as both for rx.
by tgrand
Wed Sep 07, 2011 6:32 am
Forum: General
Topic: HW for voice service
Replies: 2
Views: 444

Re: HW for voice service

do a google search for plug computing and plug pbx.
by tgrand
Thu Aug 04, 2011 8:03 am
Forum: Wireless Networking
Topic: Calculate max wireless distance.
Replies: 51
Views: 10371

Re: Calculate max wireless distance.

The signal to noise should not be effected by fresnal encroachment, however the integrity of the signal will most certainly be affected. What is being refered to as the 1st fresnal is the full field or full power. The second Fresnal is the half power or ~70% field. Encroachment into the first frezna...
by tgrand
Mon Jul 18, 2011 1:37 am
Forum: General
Topic: Lightning - Surge Protection Didn't Work This Time!
Replies: 2
Views: 663

Re: Lightning - Surge Protection Didn't Work This Time!

Looks identical to one of ours. It was confirmed that an electrical transformer approx. 30 meters away was directly hit and this was the result. The surge went through the electrical wiring and through the poe to the RB. The radio card which was in use continues to work like a champ, while we had to...
by tgrand
Tue Jul 12, 2011 4:34 am
Forum: General
Topic: Route lost - RB711 / MIPSBE / PPPoE NAT router setup
Replies: 3
Views: 850

Re: Route lost - RB711 / MIPSBE / PPPoE NAT router setup

5.2 had this problem for us.
Upgrade to 5.4 or 5.5.

This will fix your problem.
by tgrand
Tue Jul 12, 2011 4:31 am
Forum: Wireless Networking
Topic: What is the best amplifier ?
Replies: 5
Views: 780

Re: What is the best amplifier ?

Correct me if I am wrong..... You are trying to connect several sector antennas to a single radio? If this is true use a signal splitter. If you use a signal 2 output splitter the output power is dropped by 3db on each output. a 3way is about 4.5db loss, adn a 4way is 6 db loss. so if you are using ...
by tgrand
Thu Jun 30, 2011 7:04 pm
Forum: The User Manager
Topic: no valid profile found using userman-test 4.5
Replies: 2
Views: 3972

Re: no valid profile found using userman-test 4.5

It is because V5 requires a User have a profile defined. Unfortunately there is now way in which to add the profile from the command line making V5 usermanager completely useless unless 1) you ar just starting out and only have a few clients to enter 2) self abusive and wish to add profiles to thous...
by tgrand
Tue Jun 28, 2011 5:45 am
Forum: General
Topic: pppoe client not getting all IP info??
Replies: 7
Views: 998

Re: pppoe client not getting all IP info??

Those settings are dependant upon your profiles.
The server profile should have a local address as well as the dns servers defined.
I have noticed that in many examples these appear to be missing.
by tgrand
Wed Jun 22, 2011 7:20 pm
Forum: The User Manager
Topic: Add User in console (How to specify Profile)
Replies: 0
Views: 601

Add User in console (How to specify Profile)

Was told this was going to be fixed back at 5.2.
Now 5.5 and still I can not set the profile for a user when adding a user from the console..

What is the ETA on this???

Also are you going to fix the Dual Database Issue?
by tgrand
Tue Jun 14, 2011 11:15 pm
Forum: General
Topic: Mikrotik router record !!!
Replies: 22
Views: 9921

Re: Mikrotik router record !!!

These units are rockets..
by tgrand
Tue Jun 07, 2011 8:18 pm
Forum: General
Topic: Static route unreachable --Why?--
Replies: 2
Views: 1166

Re: Static route unreachable --Why?--

Be sure that the device you have plugged into the port has an appropriate default gateway set.
by tgrand
Thu Jun 02, 2011 7:10 am
Forum: General
Topic: IMPORTANT! IPv6 guideline needed!
Replies: 34
Views: 3172

Re: IMPORTANT! IPv6 guideline needed!

When I had stated So when setting up IPV6 it must be tackled by completely ignoring the IPV4 setup (with some exceptions [not going there]). Here is an example: He can bond 2 dsl lines, but also create a virtual bridge over IPV4 to a machine Not on his physical network. That virtual bridge CAN bridg...
by tgrand
Thu Jun 02, 2011 6:37 am
Forum: General
Topic: IMPORTANT! IPv6 guideline needed!
Replies: 34
Views: 3172

Re: IMPORTANT! IPv6 guideline needed!

If rudy is doing the nating then he just has to run dual stack. I have Natted, as well as Public unNatted IPV4 as well as a dual stack IPV6. IPV6 must be viewed as another internet (Internet 2.0). Completely incompatable to IPV4 (Internet 1.0). It just happens to work over the same Physical media. S...
by tgrand
Thu Jun 02, 2011 6:07 am
Forum: General
Topic: IMPORTANT! IPv6 guideline needed!
Replies: 34
Views: 3172

Re: IMPORTANT! IPv6 guideline needed!

As far as delivery of address space to the client, I am also perplexed, aside from giving them a subnet and have them self confgure their own routers. As an ISP you control the addressing assigned to the clients outer interfaces, but are there not legal ramifications and liabilties in having control...
by tgrand
Thu Jun 02, 2011 5:57 am
Forum: General
Topic: IMPORTANT! IPv6 guideline needed!
Replies: 34
Views: 3172

Re: IMPORTANT! IPv6 guideline needed!

Best thing to do is to start to conceptualize IPV6 and worry about the symantics later. First off, I would recommend thinking of IPV4 as Hexidecimal (ie FF:FF:FF:FF = 255.255.255.255). Now IPv6 is simply 4 hex digits 8 times as oppose to ipV4 being 2 Hex digits 4 times (ie ffff:ffff:ffff:ffff:ffff:f...
by tgrand
Wed Jun 01, 2011 6:35 am
Forum: General
Topic: IMPORTANT! IPv6 guideline needed!
Replies: 34
Views: 3172

Re: IMPORTANT! IPv6 guideline needed!

/125, /124, /123

No different than V4 with exception to the fact that you have alot more addresses.
Set routers statically and use OSPF-V3 to route.

Why use DHCP anything, when auto config works perfectly fine?

IPV6 is an internet unto itself.
by tgrand
Sat May 07, 2011 9:18 am
Forum: The User Manager
Topic: User Manager Profiles
Replies: 2
Views: 1219

Re: User Manager Profiles

Bump...

Any of this going to be fixed??

How do I script the addition of users if I can not specify a profile in the script?

Why are there 2 databases for the statistics, one for terminal window and one for web interface?

Doesn't anybody else have issue with this?!?
by tgrand
Sat May 07, 2011 9:04 am
Forum: Wireless Networking
Topic: R52Hn txpower setting
Replies: 11
Views: 3977

Re: R52Hn txpower setting

uhhhh.... :? Don't do that!!! Easy way to overheat/overdrive the amp and/or create noise. You need to keep in mind that the output power is the total power out both connectors at a standard 20MHz wide signal. 25db - ~3db for Dual connector - ~3db for 40MHz wide channel = ~ 19db It likely not precise...
by tgrand
Sat Apr 30, 2011 7:46 pm
Forum: The User Manager
Topic: User Manager Profiles
Replies: 2
Views: 1219

Re: User Manager Profiles

The User manager Web interface does not correlate to the terminal commands either. If I reset-counters from the command line, then print the user details, the stats are reset. The web interface stats only reset if reset from the web interface. This is a real problem as I have extensive scripting to ...
by tgrand
Sat Apr 30, 2011 7:08 pm
Forum: The User Manager
Topic: User Manager Profiles
Replies: 2
Views: 1219

User Manager Profiles

My APs are set to access A Usermanager router for Radius. Have created a new 5.2 Router with Usermanager, imported a database from v3 user-manager and set an AP to use the new user-manaager. My Users on the AP are now not authenicating, the AP`s radius log shows Profile not found error. So within Us...
by tgrand
Thu Apr 28, 2011 11:42 pm
Forum: General
Topic: Billing Solutions
Replies: 18
Views: 6725

Re: Billing Solutions

WHMCS works well.
You have to be prepared to do some Mikrotik API coding in PHP to integrate UserManager with WHMCS.
Or if using a radius server write some PHP SQL code in order to integrate.
by tgrand
Thu Apr 07, 2011 10:48 pm
Forum: Wireless Networking
Topic: Our SXT testing
Replies: 15
Views: 2696

Re: Our SXT testing

Every situation requires different settings. It is not just something that can be exchanged. I would venture to guess that the rx signal on either end of that 500m connection is stronger than -50. First thing I would recommend is to lower your tx-power in increments and check your speeds. Work to tr...
by tgrand
Fri Mar 25, 2011 8:33 pm
Forum: RouterBOARD hardware
Topic: RB711-5Hn-M missing wlan interface
Replies: 5
Views: 1167

Re: RB711-5Hn-M missing wlan interface

Turns out I just needed to open a new terminal and do:
/system routerboard upgrade

Firmware was not apparently at a level so as to recognize the onboard wlan interface.
by tgrand
Thu Mar 24, 2011 12:05 am
Forum: General
Topic: Usermanager on V5.0RC11
Replies: 6
Views: 1992

Re: Usermanager on V5.0RC11

Any word on ETA of v5.0rc12?
by tgrand
Thu Mar 24, 2011 12:02 am
Forum: General
Topic: the super routeros router
Replies: 4
Views: 1394

Re: the super routeros router

We have a pair of systems with i5 QuadCore with 8 Copper GigE Ports.
We can run Bandwidthtest from device to device and do 1Gbps in both directions without going over 2% CPU resource, and that is with connection tracking on.
by tgrand
Mon Mar 21, 2011 3:57 am
Forum: RouterBOARD hardware
Topic: RB711-5Hn-M missing wlan interface
Replies: 5
Views: 1167

RB711-5Hn-M missing wlan interface

I purchased a handful of RB711-5Hn-M's some with lvl3 and some with lvl4 licenses.

All RB711-5Hn-M's with level3 are missing the wireless interface, while all level4s are fine.

Is there a known problem?

Upgrading the RosV5rcxx does not resolve the problem.
by tgrand
Mon Mar 21, 2011 3:11 am
Forum: General
Topic: WOL Wakeup On LAN
Replies: 5
Views: 3008

Re: WOL Wakeup On LAN

Yes but is the interface on the particular RB433AH physically connected to the local network in which the Device he wishes to wake resides?

Have a look at a WOL packet....
There really is not alot that can go wrong.
by tgrand
Sun Mar 20, 2011 3:58 pm
Forum: General
Topic: WOL Wakeup On LAN
Replies: 5
Views: 3008

Re: WOL Wakeup On LAN

Wake on Lan is an etremely simple packet.
If it does not work, I would recommend testing the capabilities of your device you wish to wake using a PC application on the local net of the device.

There are MANY free WOL packages with source code available.
by tgrand
Wed Mar 16, 2011 6:24 pm
Forum: Beginner Basics
Topic: Static IPs via PPPoE
Replies: 2
Views: 526

Re: Static IPs via PPPoE

My recommendation is to split your pppoe-pool into 2 seperate pools. One for dynamic assignment and the other for static assignment. Statically assign ips to your client from the static pool by specifying an IP to each ppp user/profile. Once assigned you can delete the <pppoe-user> interface from th...
by tgrand
Sat Mar 05, 2011 11:23 pm
Forum: General
Topic: Usermanager on V5.0RC11
Replies: 6
Views: 1992

Usermanager on V5.0RC11

System Specs: Dual Core Atom D510, 2Gig Ram, 120Gig sata2 SSD. User manager doesn't work as the changelog would indicate. [admin@Test] > tool [admin@Test] /tool> user-man [admin@Test] /tool user-manager> user [admin@Test] /tool user-manager user> pr Flags: X - disabled, A - active, I - incomplete er...
by tgrand
Tue Feb 22, 2011 5:17 am
Forum: General
Topic: Mikrotik IPv6 addresses
Replies: 33
Views: 2947

Re: Mikrotik IPv6 addresses

1 <1 ms <1 ms <1 ms 2001:470:1f11:bbe::1 2 31 ms 29 ms 57 ms QuickStream-1.tunnel.tserv9.chi1.ipv6.he.net [2001:470:1f10:bbe::1] 3 28 ms 27 ms 27 ms gige-g3-4.core1.chi1.he.net [2001:470:0:6e::1] 4 50 ms 51 ms 46 ms 10gigabitethernet2-4.core1.nyc4.he.net [2001:470:0:4e::2] 5 120 ms 118 ms 127 ms 10g...
by tgrand
Sat Jan 15, 2011 12:40 am
Forum: Scripting
Topic: API PHP class
Replies: 45
Views: 60775

Re: API PHP class

instead of the following: $API->write('/ip/hotspot/user/set', false); $API->write('=name=mv99', false); $API->write('=password=phptest'); Do the following: $API->write('/tool/user-manager/user/print', false); $API->write('?name=mv99'); Then parse out from the return data the field .id and use the va...
by tgrand
Tue Jan 11, 2011 7:33 am
Forum: General
Topic: RB450G Winbox System Resources
Replies: 14
Views: 2021

Re: RB450G Winbox System Resources

from your web browser access the router by IP.
On the page that is displayed, download winbox.

I would recommend upgrading to 4.16 first as it is the latest V4 version and it will include the latest recommended version of winbox downloadable through the web interface of the router board.
by tgrand
Tue Jan 11, 2011 5:08 am
Forum: General
Topic: RB450G Winbox System Resources
Replies: 14
Views: 2021

Re: RB450G Winbox System Resources

NORMIS...

I think your resources are a little maxed out on that RB450G.....
You might wish to check into that.....
:-P
by tgrand
Tue Jan 11, 2011 5:02 am
Forum: General
Topic: RB450G Winbox System Resources
Replies: 14
Views: 2021

Re: RB450G Winbox System Resources

Why would you downgrade your rb450g ??
the OS on that originally should have been v4 ( or possibly v3 ).

You claim to be running a v2 ?!?

EDIT:
And how is it you have 520 MB ?!?

Something is amiss......
by tgrand
Sat Jan 08, 2011 3:33 am
Forum: Wireless Networking
Topic: Wireless amplifier
Replies: 14
Views: 2509

Re: Wireless amplifier

One of the most important this to note:
Amplifiers amplify EVERYTHING, including the noise.
by tgrand
Fri Dec 31, 2010 6:58 am
Forum: General
Topic: Let me be the first (perhaps)
Replies: 1
Views: 380

Let me be the first (perhaps)

To everyone;

Have a happy and prosperous New Year!
by tgrand
Mon Dec 20, 2010 3:53 am
Forum: General
Topic: Loaded v5.0rc5 on a RB750
Replies: 7
Views: 1760

Re: Loaded v5.0rc5 on a RB750

press and hold the reset button while you power up the rb750
it will try net booting (Netinstall)
Reinstall the appropriate packages.
by tgrand
Sat Dec 11, 2010 5:30 pm
Forum: Wireless Networking
Topic: Big differences with nstreme
Replies: 5
Views: 1179

Re: Big differences with nstreme

Try unselecting some of your lowest datarates.
Retransmits may cause datarate scaling. which will at times be worse for performance than the retransmits.

I recommend supporting the lowest rate.
by tgrand
Thu Dec 09, 2010 12:46 am
Forum: Wireless Networking
Topic: Big differences with nstreme
Replies: 5
Views: 1179

Re: Big differences with nstreme

try aes encryption instead of psk.
aes is hardware encryption while psk is software encryption.
making aes more efficient.

You can also try specifying appropriate frequencies in a scan list, which will shorten the reconnect delay.
by tgrand
Fri Dec 03, 2010 5:53 pm
Forum: Wireless Networking
Topic: VPS hosting for WISP billing server.
Replies: 5
Views: 3486

Re: VPS hosting for WISP billing server.

If you are dealing frequently with long term outages which a UPS does not accomodate, then perhaps you should consider a Backup Generator with a Bypass switch to your panel.
by tgrand
Wed Nov 10, 2010 8:53 pm
Forum: Wireless Networking
Topic: One AP two frequencies are viewed
Replies: 3
Views: 839

Re: One AP two frequencies are viewed

your probably running with 10Meg or 5Meg channel widths.
Just ignore the ghosts the client will connect to the highest signal.
by tgrand
Tue Oct 26, 2010 5:36 am
Forum: Wireless Networking
Topic: Hidden node issue?
Replies: 26
Views: 3975

Re: Hidden node issue?

Sounds like the 5.0rc1 nv2 wireless bug.
Are you running v5.0rc1 and nv2 wireless mode?
If not then what version are you running?
by tgrand
Tue Oct 19, 2010 6:37 pm
Forum: Wireless Networking
Topic: I should be rockin, but am only crawling
Replies: 25
Views: 4484

Re: I should be rockin, but am only crawling

Still must disable periodic calibration.
by tgrand
Tue Oct 19, 2010 4:18 am
Forum: Wireless Networking
Topic: I should be rockin, but am only crawling
Replies: 25
Views: 4484

Re: I should be rockin, but am only crawling

disable periodic calibration on your advanced tab.
Calculate your ack timeout value and hard code the ack timeout.
by tgrand
Mon Oct 11, 2010 9:37 pm
Forum: Wireless Networking
Topic: What Access Point is powerfull enough through many rooms
Replies: 4
Views: 937

Re: What Access Point is powerfull enough through many rooms

Do a google search for leeky coax.

leaky not leeky
by tgrand
Fri Oct 08, 2010 12:14 am
Forum: General
Topic: Two questions about Multicast
Replies: 3
Views: 1992

Re: Two questions about Multicast

You say you wish to broadcast on other router...
What is the config on this other router.

Should it not also have pim setup?
by tgrand
Wed Oct 06, 2010 9:07 pm
Forum: General
Topic: New wireless protocol: Nv2 in v5.0beta5
Replies: 217
Views: 77342

Re: New wireless protocol: Nv2 in v5.0beta5

Please fix the watchdog so that it creates a supout file.
This way the NV2 protocol can be debugged.
This would allow me to have the supout available from the client as well as the AP.
It also reboots the client and AP so minimal downtime is experienced.

Win Win.... If you can fix the watchdog.
by tgrand
Sun Sep 26, 2010 12:11 am
Forum: Wireless Networking
Topic: B/W of the wireless link
Replies: 4
Views: 1042

Re: B/W of the wireless link

Your not going to get close with 5GHz unless it is N.
try the R5Hn, R52Hn, or XR71
by tgrand
Fri Sep 24, 2010 3:19 am
Forum: General
Topic: New wireless protocol: Nv2 in v5.0beta5
Replies: 217
Views: 77342

Re: New wireless protocol: Nv2 in v5.0beta5

I can verify that on 433 and 411 Routerboards all appears to be working well so far. The posted V5rc1 is performing Excellent over the Prerelease V5rc1. We are using NV2 nstreme on 2.4GHz-10MHz. We also have a backhaul link we are testing using 5GHz-only-N using NV2-nstreme and wds, and it is perfor...
by tgrand
Mon Sep 20, 2010 8:47 pm
Forum: Wireless Networking
Topic: CLIMBING TOWERS - VIDEOS AND PICTURES
Replies: 20
Views: 4326

Re: CLIMBING TOWERS - VIDEOS AND PICTURES

Here is a climb I am sure all of us can appreciate.

http://www.youtube.com/watch?v=uhtgsAXm ... r_embedded
by tgrand
Sat Sep 18, 2010 6:55 am
Forum: General
Topic: New wireless protocol: Nv2 in v5.0beta5
Replies: 217
Views: 77342

Re: New wireless protocol: Nv2 in v5.0beta5

Torch always has 0 bps for TX.
WatchDog Timer will trigger if an IP address is specified, even though enabled is unchecked.
NV2 still freezes from time to time.
by tgrand
Thu Sep 16, 2010 8:39 pm
Forum: General
Topic: New wireless protocol: Nv2 in v5.0beta5
Replies: 217
Views: 77342

Re: New wireless protocol: Nv2 in v5.0beta5

Been using RC1 for P2MP works great.
AP did freeze with neer frequency interference which was resolved.
by tgrand
Sun Sep 12, 2010 5:16 am
Forum: Forwarding Protocols
Topic: Access internal devices from outside the network
Replies: 4
Views: 1302

Re: Access internal devices from outside the network

Use another mikrotik router and route your network address space throught a tunnel.
Possibilities are: eoip bridge, ppp bridge of some type, etc.
by tgrand
Sun Sep 12, 2010 5:06 am
Forum: Wireless Networking
Topic: Monitoring ACK and resetting the connection
Replies: 5
Views: 1140

Re: Monitoring ACK and resetting the connection

The client is also a transmitter, however the ack timeout on the client should be set for the client distance. Only the AP should be set for the furthest. As for rts/cts Just set the AP for cts to self. As far as nstreme; it has come a long way, and performs rather well. With that said, nstreme does...
by tgrand
Sun Sep 12, 2010 5:01 am
Forum: Wireless Networking
Topic: A Security Profile does... what, exactly?
Replies: 5
Views: 924

Re: A Security Profile does... what, exactly?

Use WPA2 PSK and aes cmm for your unicast and group cyphers. Use a complex string for your Key. Using aes offloads the work onto the wireless card, which has descrete logic to handle the encryption. If you merely use encryted pppoe tunnels then the router board is tasked to handle encryption. Hence ...
by tgrand
Sat Sep 11, 2010 6:06 pm
Forum: Wireless Networking
Topic: A Security Profile does... what, exactly?
Replies: 5
Views: 924

Re: A Security Profile does... what, exactly?

pppoe encryption is just encrytion over the tunnel.
If someone can connect to the AP they will potentially try and try and try again to do whatever it is they want to do.
This can and will effect the performance of your AP.
by tgrand
Sat Sep 11, 2010 6:03 pm
Forum: Wireless Networking
Topic: Monitoring ACK and resetting the connection
Replies: 5
Views: 1140

Re: Monitoring ACK and resetting the connection

Every transmition requires a receive of an acknowledgement (does not matter which radio Client or AP). The ack timeout is the amount of time from transmition before an ack can be expected to be received. If this does not happen withing the acktimeout setting, the the transmitted packet is assume to ...
by tgrand
Wed Sep 01, 2010 4:29 pm
Forum: Wireless Networking
Topic: Monitoring ACK and resetting the connection
Replies: 5
Views: 1140

Re: Monitoring ACK and resetting the connection

Set your ACK timeout on your AP to be that of your furthest Client (Highest ACK timeout).
When the ACK go above this number the client will disconnect automatically.
by tgrand
Sat Aug 28, 2010 5:21 am
Forum: Wireless Networking
Topic: lost connection, extensive data loss
Replies: 8
Views: 4139

Re: lost connection, extensive data loss

It will also double or triple your latencies or worse on your whole access point.
by tgrand
Thu Aug 26, 2010 9:35 pm
Forum: Wireless Networking
Topic: Snow
Replies: 9
Views: 1249

Re: Snow

Pretty Much the same. You do however need to consider ice loading when figuring the load aspects of the tower. Signals 2.4, and 5.8.... Never had problem with signal degredation, with exception to thick, fast, and wet sleet. Rain is much worse to deal with. It is possible to get snow and ice build u...
by tgrand
Wed Jul 21, 2010 4:46 pm
Forum: Wireless Networking
Topic: Wireless Troubleshooting
Replies: 16
Views: 2747

Re: Wireless Troubleshooting

It is disheartening that this thread turned into something other than the problem at hand. I already changed antenna, no luck Already changed polarity V to H, no luck Is it possible if the RX Sensitivity in AP side was damaged ? So AP could not hear Client clearly. Please advice. I already changed a...
by tgrand
Fri Jul 16, 2010 11:08 pm
Forum: Wireless Networking
Topic: Routing Public IP address
Replies: 16
Views: 8037

Re: Routing Public IP address

Routers just pass the data on to the next hop, therefore routing public addresses is not a problem at all.
I would suggest using OSPF for the routing protocol and use PPPoE to connect the device (Biometric Scanner).
Have your Gateway provider route the public address through your gateway address.
by tgrand
Thu Jul 08, 2010 5:52 am
Forum: General
Topic: RB433 - Wireless Interface Anomalies
Replies: 3
Views: 796

Re: RB433 - Wireless Interface Anomalies

Be sure to open terminal window and type: sys rou upg answer yes, then do a system reboot. This ensures that the boards firmware is up to date. If you continue to experience the problem, try reseating the radio cards. If the problm persists the try moving the cards to a different mpci slot. If still...
by tgrand
Thu Jun 17, 2010 8:09 pm
Forum: Wireless Networking
Topic: Need help with 8km PTP
Replies: 16
Views: 2509

Re: Need help with 8km PTP

On a side note regarding multiple radio cards in a single enclosure: RF signals bounce around within an enclosure, these reflections can also cause gain within the enclosure. Good practice in these scenarios is to line the inner surfaces of the enclose with microwave absorbing materials. The drawbac...
by tgrand
Wed Jun 16, 2010 5:53 am
Forum: Wireless Networking
Topic: PTP low performance
Replies: 8
Views: 1641

Re: PTP low performance

Do a uni-direction test in one direction then in the other.
Post the ccqs in from each test.
I would be inclined to think that one direction is impacted more than the other.
This would indicate that one antenna is too close to another antenna on a near frequency.
by tgrand
Wed Jun 16, 2010 5:50 am
Forum: Wireless Networking
Topic: Need help with 8km PTP
Replies: 16
Views: 2509

Re: Need help with 8km PTP

Yes lower the TX-Power at each end by approximately 20 db.
Aim for around -60db in each direction.
by tgrand
Mon Jun 07, 2010 1:05 am
Forum: General
Topic: US MUM ??
Replies: 14
Views: 956

Re: US MUM ??

Perhaps Canada?
rotflmao
by tgrand
Wed Jun 02, 2010 11:08 pm
Forum: Wireless Networking
Topic: lost connection, got deauth (urgent help)
Replies: 15
Views: 5149

Re: lost connection, got deauth (urgent help)

Default authenticate is unchecked on one of the devices with no entry on the access-list or connect-list.
by tgrand
Wed May 26, 2010 4:03 am
Forum: Wireless Networking
Topic: 802.11n PTP links going batsh*t crazy
Replies: 6
Views: 1271

Re: 802.11n PTP links going batsh*t crazy

Problem should get somewhat better come night fall.
by tgrand
Wed May 26, 2010 3:57 am
Forum: Wireless Networking
Topic: 802.11n PTP links going batsh*t crazy
Replies: 6
Views: 1271

Re: 802.11n PTP links going batsh*t crazy

SOLAR BLAST: A magnetic filament on the sun erupted yesterday, May 24th, and the blast hurled a coronal mass ejection (CME) in the general direction of Earth. NASA's Solar Dynamics Observatory recorded the action around the blast site in 10xHDTV resolution: http://www.spaceweather.com Possibility.....
by tgrand
Wed May 26, 2010 3:49 am
Forum: Wireless Networking
Topic: Multiple power supplies
Replies: 47
Views: 12570

Re: Multiple power supplies

If you use a charge controller and run off battery you could use one of these (see link below) to sense the primary supply, when it is no longer available it can toggle a relay which switches over to the secondary supply, when the it senses the primary it will switch back automatically. You have to ...
by tgrand
Sat May 22, 2010 11:55 pm
Forum: Wireless Networking
Topic: rb433ah interference between mpci cards
Replies: 75
Views: 18239

Re: rb433ah interference between mpci cards

By vertical seperation the assumption must be made that it is on a vertical structure ie. tower.
On building tops the option may be either vertical or horizontal.

Spacial diversity is the key.

Which is better is dependant upon the environment.
by tgrand
Sat May 22, 2010 1:39 am
Forum: Wireless Networking
Topic: rb433ah interference between mpci cards
Replies: 75
Views: 18239

Re: rb433ah interference between mpci cards

You may have significantly better luck if you properly line the enclosures with Microwave absorber material.

hxxp://www.cumingmw.com/Product%20Applications ... ssion.html


My Appologies:
I did not read changeip's post about the seperate enclosures.
Perhaps someone else may benefit from this.
by tgrand
Sat May 08, 2010 4:49 pm
Forum: General
Topic: how to limit pps and connections?
Replies: 1
Views: 494

Re: how to limit pps and connections?

Prioritize your TCP ACK Packets.
by tgrand
Sat May 08, 2010 4:48 pm
Forum: General
Topic: EXPERIENCE: 25Km mimo link with 30mbit full duplex TCP
Replies: 1
Views: 723

Re: EXPERIENCE: 25Km mimo link with 30mbit full duplex TCP

Read the following post.

http://forum.mikrotik.com/viewtopic.php?f=7&t=32143

There are some good recomendations on tweeking 802.11n links.
by tgrand
Sat May 08, 2010 4:42 pm
Forum: General
Topic: Big PPPOE Problem Thats Needs an Expeart
Replies: 18
Views: 2421

Re: Big PPPOE Problem Thats Needs an Expeart

Open a command line and run the following command:

interface pppoe-server export file=pppoeconfig

It will create a text file. Open this text file and copy the contents, then paste it into the forums.

This way we can help diagnose the problem.
by tgrand
Sat May 08, 2010 4:37 pm
Forum: Wireless Networking
Topic: problem in freq.
Replies: 5
Views: 892

Re: problem in freq.

by tgrand
Thu Apr 29, 2010 4:53 am
Forum: General
Topic: routeros with VOIP and Wireless
Replies: 2
Views: 644

Re: routeros with VOIP and Wireless

Siganal strength of -48 is quite HOT let alone -40.
I would recommend you try to lower your output power to get to -58 to -64 range.

This may or maynot solve your problem, but will most certainly elimate one contributing factor.
by tgrand
Tue Apr 27, 2010 4:07 am
Forum: General
Topic: Detect source of attack
Replies: 13
Views: 1816

Re: Detect source of attack

You should be blocking bogon addresses from the internet.
by tgrand
Thu Apr 22, 2010 2:37 pm
Forum: General
Topic: RB433AH - can't upgrade firmware
Replies: 9
Views: 7600

Re: RB433AH - can't upgrade firmware

Have you tried a serial cable to log into the bootloader?
If you can do this, then set it to boot from ethernet, and use netinstall to install OS.
by tgrand
Tue Apr 20, 2010 7:56 am
Forum: RouterBOARD hardware
Topic: High Latencies on Mikrotik Noted
Replies: 5
Views: 1065

Re: High Latencies on Mikrotik Noted

SNR = Signal to noise ratio.
Signal-to-noise ratio compares the level of a desired signal to the level of background noise. The higher the ratio, the less obtrusive the background noise is

A goal would be to maintain all your backhauls with 20db or more Signal to noise.
by tgrand
Sat Apr 17, 2010 1:33 am
Forum: RouterBOARD hardware
Topic: High Latencies on Mikrotik Noted
Replies: 5
Views: 1065

Re: High Latencies on Mikrotik Noted

Rain will affect all microwave links.
The trick is to have enough margin to account for such events.

What are your signal strengths and SNR?
by tgrand
Mon Apr 12, 2010 5:05 am
Forum: General
Topic: 2.4Ghz - Keeps disconnecting (Grid 2 Grid). ROS : 4.5
Replies: 10
Views: 1336

Re: 2.4Ghz - Keeps disconnecting (Grid 2 Grid). ROS : 4.5

An R52 + 24db Grid 200 meters from R52 + 24 Grid?
You should be getting Way higher than -62/-67, even with a tree in between.

Did you reduce the output power?
by tgrand
Sat Apr 10, 2010 12:01 am
Forum: General
Topic: High delay on web requests
Replies: 1
Views: 416

Re: High delay on web requests

try using an alternate dns address on your stations rather than using the mikrotik dns.
by tgrand
Wed Mar 31, 2010 6:02 pm
Forum: Wireless Networking
Topic: Full Duplex R52nH
Replies: 13
Views: 2686

Re: Full Duplex R52nH

Truth of matter is that full duplex can only TRUELY be accomplished with ASIC or discrete logic.
Once a CPU is introduced, TRUE duplex is not possible, but EXTREMELY close.

That is the true technical fact of the matter.
by tgrand
Tue Mar 30, 2010 2:31 pm
Forum: Wireless Networking
Topic: Full Duplex R52nH
Replies: 13
Views: 2686

Re: Full Duplex R52nH

Technically yes, I know this. I have reverse engineered integrated curcuits, so TECHNICALLY I am VERY aware of what the limitations are. When some one asks for 100Mbps full duplex, they are usually asking for 100Mbps Symetrical. And much of the time they are only interested in the TECHNICAL details ...
by tgrand
Mon Mar 29, 2010 10:14 pm
Forum: Wireless Networking
Topic: Base station problem... SOLVED! Please read...
Replies: 18
Views: 4269

Re: Base station problem... SOLVED! Please read...

If you notice: When using a 5Mhz wide channel you will see 2 lobes (or ghosts). When using a 10Mhz wide channel you will only see 1 lobe (or ghost). you simply ultimately reduced the amount of interference between your sectors by going to a 10 Mhz wide channel. Also you increased your range by 3db (...
by tgrand
Mon Mar 29, 2010 8:34 pm
Forum: Wireless Networking
Topic: Full Duplex R52nH
Replies: 13
Views: 2686

Re: Full Duplex R52nH

I agree that anything 802.11 is half duplex by nature. With that said; When I can do a routerboard to routerboard TCP speedtest over N and accomplish 90Mbps UP and 90Mbps Down simultaneously, then I would have to make a statement that it is purdy dang close to full duplex for the likes of me. With q...
by tgrand
Mon Mar 29, 2010 4:51 am
Forum: Wireless Networking
Topic: Full Duplex R52nH
Replies: 13
Views: 2686

Re: Full Duplex R52nH

Not entirely accurate.
802.11n can receive on one antenna while transmitting on the other.

Does this sound like full duplex to you?
by tgrand
Thu Mar 25, 2010 4:00 pm
Forum: RouterBOARD hardware
Topic: mikrotik to lan pc pingtime 9 ms
Replies: 14
Views: 1863

Re: mikrotik to lan pc pingtime 9 ms

I would still suggest that you follow RK's advise and use a switch, rather than a hub.
by tgrand
Thu Mar 25, 2010 3:00 pm
Forum: RouterBOARD hardware
Topic: mikrotik to lan pc pingtime 9 ms
Replies: 14
Views: 1863

Re: mikrotik to lan pc pingtime 9 ms

6 of those hops are wireless
by tgrand
Thu Mar 25, 2010 2:44 pm
Forum: Wireless Networking
Topic: Base station problem... SOLVED! Please read...
Replies: 18
Views: 4269

Re: Base station problem. Please help...

Set the center channels into the scan list. Take advantage of it, as that is why it is there. When the signal is good enough you will see signal lobes on 5 and 10 Meg channels. It would appear that it does not matter which radio cards are in use. It seems that using bandpass filters degrades the per...
by tgrand
Thu Mar 25, 2010 2:36 pm
Forum: RouterBOARD hardware
Topic: mikrotik to lan pc pingtime 9 ms
Replies: 14
Views: 1863

Re: mikrotik to lan pc pingtime 9 ms

MediaNet,

Just an FYI, View image.
by tgrand
Mon Mar 22, 2010 2:20 am
Forum: RouterBOARD hardware
Topic: mikrotik to lan pc pingtime 9 ms
Replies: 14
Views: 1863

Re: mikrotik to lan pc pingtime 9 ms

OK 9 HOPS
But that is not the point.

The point is that the PC must be slow in response.
Or there is ALOT he has not shared.
by tgrand
Sun Mar 21, 2010 4:47 pm
Forum: RouterBOARD hardware
Topic: mikrotik to lan pc pingtime 9 ms
Replies: 14
Views: 1863

Re: mikrotik to lan pc pingtime 9 ms

try it to a different PC.
I can get those ping speeds over 12 wireless hops.
by tgrand
Fri Feb 12, 2010 4:50 pm
Forum: Wireless Networking
Topic: 128QAM & 256QAM wireless card..
Replies: 4
Views: 1393

Re: 128QAM & 256QAM wireless card..

Licensed frequency band maybe?
by tgrand
Fri Feb 12, 2010 4:49 pm
Forum: Wireless Networking
Topic: low client signal when upgrade from 3.30 to 4.3
Replies: 26
Views: 3838

Re: low client signal when upgrade from 3.30 to 4.3

Shouldn't need to.
What is the radio card?
by tgrand
Sun Jan 31, 2010 12:54 am
Forum: Wireless Networking
Topic: Mikrotik 4.x nstream still broken
Replies: 2
Views: 1131

Re: Mikrotik 4.x nstream still broken

viewtopic.php?p=187823#p187823
by tgrand
Wed Jan 27, 2010 4:16 am
Forum: Wireless Networking
Topic: management-protection failure
Replies: 6
Views: 11164

Re: management-protection failure

by tgrand
Wed Jan 27, 2010 4:13 am
Forum: Wireless Networking
Topic: AP loses all it's connections? I'm baffled!
Replies: 8
Views: 1547

Re: AP loses all it's connections? I'm baffled!

If you are running V4.X then browse through the forums.
There are very recent threads which describe what is required to fix broken wireless.
by tgrand
Wed Jan 20, 2010 10:25 pm
Forum: The Dude
Topic: Vote for new DUDE features!
Replies: 117
Views: 46913

Re: Vote for new DUDE features!

Would be nice to be able to right click an element and select SubMap.
by tgrand
Sat Jan 16, 2010 10:40 pm
Forum: Wireless Networking
Topic: mikrotik v4.4 wireless is worse than ever
Replies: 26
Views: 9380

Re: mikrotik v4.4 wireless is worse than ever

Wouldn't have added it to the wiki if it didn't. :D
by tgrand
Fri Jan 15, 2010 4:00 pm
Forum: General
Topic: HUGE PROBLEM extensive data loss 3,30->4,2
Replies: 24
Views: 4770

Re: HUGE PROBLEM extensive data loss 3,30->4,2

Had the same problem. Did a reset config on the wireless interface of my AP. Then reset it up. Everything worked fine afterwords. After apgrade of client the only option is to do the reset and reconfig using script. Be careful to reenable the interface in the script, as a reset config disables the i...
by tgrand
Thu Jan 07, 2010 2:51 pm
Forum: Wireless Networking
Topic: mikrotik v4.4 wireless is worse than ever
Replies: 26
Views: 9380

Re: mikrotik v4.4 wireless is worse than ever

I do not recall EVER receiving a board with 4.4 preinstalled.
This script has worked for me on many radios.

If anybody tries this please post your results.
by tgrand
Wed Jan 06, 2010 3:00 am
Forum: Wireless Networking
Topic: v4.3 on wireless 5.8 backhauls
Replies: 7
Views: 1602

Re: v4.3 on wireless 5.8 backhauls

Try this:

http://wiki.mikrotik.com/wiki/Fix_Broke ... an_Upgrade

The script is meant for clients or remote (other end of a wireless link) radios.
You will still get the gist of what has to be done.
by tgrand
Wed Jan 06, 2010 2:55 am
Forum: Wireless Networking
Topic: mikrotik v4.4 wireless is worse than ever
Replies: 26
Views: 9380

Re: mikrotik v4.4 wireless is worse than ever

Try this:

http://wiki.mikrotik.com/wiki/Fix_Broke ... an_Upgrade

If it is an AP you have upgraded then do it through ssh instead of a script.
by tgrand
Sun Dec 20, 2009 1:07 am
Forum: General
Topic: First time in a 5 year MT exp error
Replies: 3
Views: 785

Re: First time in a 5 year MT exp error

have you tried to mac-telnet?
by tgrand
Sun Dec 20, 2009 1:02 am
Forum: Wireless Networking
Topic: Why does one client bring down entire network?
Replies: 35
Views: 6284

Re: Why does one client bring down entire network?

If I am not mistaken the RTS/CTS is off by default.
Uncheck the off box.

This will enable the client to request to send data.
The problem you are encountering is due to the fact that this client continues to broadcast, ultimately deafening the AP to the other clients.
by tgrand
Tue Dec 08, 2009 3:18 pm
Forum: Wireless Networking
Topic: Horizontal vs Vertical polarization
Replies: 7
Views: 4243

Re: Horizontal vs Vertical polarization

leaves on trees
by tgrand
Tue Dec 08, 2009 3:36 am
Forum: Wireless Networking
Topic: Horizontal vs Vertical polarization
Replies: 7
Views: 4243

Re: Horizontal vs Vertical polarization

One more point to consider is that Vertical pole does penitrate light foliage better than horizontal.
by tgrand
Tue Dec 08, 2009 3:33 am
Forum: Wireless Networking
Topic: AP lost client signals - strange
Replies: 7
Views: 958

Re: AP lost client signals - strange

What is the noise floor on the AP, under status?
You may need to change the channel.
by tgrand
Wed Dec 02, 2009 5:06 am
Forum: Wireless Networking
Topic: Low temperature environment
Replies: 14
Views: 1659

Re: Low temperature environment

Peltier Junctions are super easy to impliment and all one has to do is reverse the polarity and it becomes a cooler instead of a heater. With that said it is true that the operating temp range is more than sufficient. Longevity isn't even a concern, as by the time the rb fails, it is time to upgrade...
by tgrand
Wed Dec 02, 2009 1:58 am
Forum: Wireless Networking
Topic: Low temperature environment
Replies: 14
Views: 1659

Re: Low temperature environment

by tgrand
Tue Dec 01, 2009 4:50 am
Forum: Wireless Networking
Topic: RB 433 AH maxing out on cpu with r52N
Replies: 2
Views: 658

Re: RB 433 AH maxing out on cpu with r52N

BandwidthTest from rb433 to rb433 is what is creating the load.
connect a PC at each end and test from PC to PC routing through the router boards.
by tgrand
Mon Nov 30, 2009 7:34 pm
Forum: Wireless Networking
Topic: Low temperature environment
Replies: 14
Views: 1659

Re: Low temperature environment

Peltier junctions are relatively inexpensive and operate at 12v.
by tgrand
Mon Nov 23, 2009 8:47 pm
Forum: Wireless Networking
Topic: Wireless vs Wind
Replies: 11
Views: 1430

Re: Wireless vs Wind

Probably trees blowing around in the line of sight.
by tgrand
Tue Nov 17, 2009 6:01 pm
Forum: General
Topic: Proxylizer VMware image
Replies: 51
Views: 20270

Re: Proxylizer VMware image

Any updates on the VMWare image and Reports?

I have setup Proxylizer using VMWare Player on a WindowsXP machine.
Database is populating fine.
Report Generator is not generating reports.

The database has been populating for over 48 hours.
Still no reports.
by tgrand
Mon Nov 16, 2009 1:50 pm
Forum: General
Topic: how to routerboard 750 with 48v power ?
Replies: 6
Views: 1156

Re: how to routerboard 750 with 48v power ?

24VDC .33A Active 802.3af POE Splitter with isolation
SKU: POE-24s-afi

It will accept 48v poe input.
by tgrand
Wed Nov 04, 2009 7:34 pm
Forum: Wireless Networking
Topic: no compatibility
Replies: 18
Views: 3044

Re: no compatibility

tx of -64 is OK.
the other end has to have its power lowered also, rx of -46 is too strong.
by tgrand
Tue Nov 03, 2009 2:54 pm
Forum: Wireless Networking
Topic: RB433AH + 3xR52-350 MiniPCI cards cannot go over 24 Mbps
Replies: 2
Views: 699

Re: RB433AH + 3xR52-350 MiniPCI cards cannot go over 24 Mbps

Crosstalk.

It is never advisable to have multiple cards within the same enclosure which are expected to operate within the same band.
by tgrand
Tue Nov 03, 2009 2:51 pm
Forum: Wireless Networking
Topic: no compatibility
Replies: 18
Views: 3044

Re: no compatibility

try to lower you output power on each end by 10db to try to get -60/-60 for signal strengths.
Your ccqs should go up.
by tgrand
Tue Oct 27, 2009 2:56 pm
Forum: Wireless Networking
Topic: MU-MIMO?
Replies: 17
Views: 3400

Re: MU-MIMO?

It Largely depends on the type of antennas used.
I would recommend in most cases a minimum of 6 meters or more.
by tgrand
Mon Oct 26, 2009 3:06 pm
Forum: Wireless Networking
Topic: MU-MIMO?
Replies: 17
Views: 3400

Re: MU-MIMO?

The chains need best seperation or isolation. Having different polarities nets you easy seperation. Alternatively you can space your antennas for seperation, but with this you need ALOT of seperation. N is designed for multipath and seperation nets you a better multipath senario, however seperation ...
by tgrand
Sun Oct 18, 2009 3:17 am
Forum: General
Topic: PPP Bridge
Replies: 11
Views: 1841

Re: PPP Bridge

Set ARP to Proxy-Arp in the bridge settings.
by tgrand
Tue Oct 06, 2009 3:17 pm
Forum: Wireless Networking
Topic: hotspot with multipath route
Replies: 8
Views: 1857

Re: hotspot with multipath route

Just a suggestion, as I have never tryed this. You should be able to specify the ip address for your users using user manager. Even though it is a single subnet on the hotspot treat it like 2 subnets and asign the users to a secific subnet. In the firewall rules you can mark-routing based upon subnet.
by tgrand
Fri Sep 18, 2009 3:36 pm
Forum: Wireless Networking
Topic: Solving 20km wireless link issues
Replies: 147
Views: 101434

Re: Solving 20km wireless link issues

Those power lines in the image you posted can also create anomalies.
They will also expand and contract with temp fluctuations, etc.

My beleif is that there is not one or two things, but several things, all working against you on this shot.
by tgrand
Mon Sep 07, 2009 5:43 am
Forum: Wireless Networking
Topic: wireless link failure during night
Replies: 8
Views: 1440

Re: wireless link failure during night

Have you tryed a re-aim after or around sunset?
If you can be aimed to remain up at night, and it drops during the day, then there is surely something affecting the microwave field.
by tgrand
Sun Sep 06, 2009 12:17 am
Forum: Wireless Networking
Topic: wireless link failure during night
Replies: 8
Views: 1440

Re: wireless link failure during night

Over much longer distances I can achieve those signals from a 19db panel to a 5db omni. Something else is wrong. Is it truely a clear line of sight? At what heights are your antennas mounted? The reason I ask, is that the freznel does have to be taken into account. What kind of environment, country ...
by tgrand
Sat Sep 05, 2009 3:12 pm
Forum: Wireless Networking
Topic: wireless link failure during night
Replies: 8
Views: 1440

Re: wireless link failure during night

1.2 meters? approx 5 feet?
19db and 30db antennas?

Or did you meen 1200 meters or 1.2 km (approx 1 mile).
It was a decimal point you used and not a comma....

Either way 19 and 30 db antennas sound excessive, exceptionally so with TRUE line of site.
by tgrand
Thu Aug 27, 2009 4:21 pm
Forum: Wireless Networking
Topic: 2 x 29 db antenna is it to close?
Replies: 3
Views: 737

Re: 2 x 29 db antenna is it to close?

High power antennas are the best way to go.
Better front to back, less side lobing, smaller beam width, etc, etc.
Price, weight, loading, and realestate being the only true sticking points.
by tgrand
Wed Aug 19, 2009 3:01 pm
Forum: General
Topic: WOL - what am I doing wrong?
Replies: 8
Views: 1585

Re: WOL - what am I doing wrong?

Gotta be a gonfig issue with the (un)waking hardware.
The WOL packet is almost to simple to get wrong.
by tgrand
Wed Aug 19, 2009 6:10 am
Forum: General
Topic: Passing public Statics Through a Natted Router?
Replies: 8
Views: 1189

Re: Passing public Statics Through a Natted Router?

Set a static route dst-address=Public IP gateway=address of next hop

Or use OSPF routing protocol.

Your ISP must route your IP address range to the address of your gateway.
by tgrand
Fri Aug 14, 2009 3:07 pm
Forum: Wireless Networking
Topic: 28V or 26V POE Injector
Replies: 18
Views: 3091

Re: 28V or 26V POE Injector

As far as 35v max input:

Use a voltage divider to lower the input voltage of the Regulator.
http://en.wikipedia.org/wiki/Voltage_divider
by tgrand
Tue Aug 11, 2009 7:07 am
Forum: General
Topic: Locked Board
Replies: 7
Views: 891

Re: Locked Board

from the serial console does the ether port display as registered when pluged into a switch, router or device?
If so then it is possible I am not correct.

I am only giving a possible scenario, you must continue your diagnostics and verify waranty etc.
by tgrand
Tue Aug 11, 2009 3:46 am
Forum: General
Topic: Passing public Statics Through a Natted Router?
Replies: 8
Views: 1189

Re: Passing public Statics Through a Natted Router?

Nat based on the ip address instead of interface.
You may require multiple nat rules.
Just do not nat the public IPs.
Also be sure that your provider appropriately routes those IPs to your routers IP.
by tgrand
Tue Aug 11, 2009 3:42 am
Forum: General
Topic: Locked Board
Replies: 7
Views: 891

Re: Locked Board

You could have had a surge on the data lines taking out the coils in the ethernet connectors.
by tgrand
Tue Aug 11, 2009 3:40 am
Forum: General
Topic: What happened to the MPLS package after 3.23?
Replies: 11
Views: 1003

Re: What happened to the MPLS package after 3.23?

I've only ever had a problem with the non-test package.
Test packages seem to fix many problems.
by tgrand
Tue Aug 11, 2009 3:36 am
Forum: Wireless Networking
Topic: would be greatful for any help anyone could give..
Replies: 13
Views: 1459

Re: would be greatful for any help anyone could give..

Have you tryed other frequencies?
by tgrand
Wed Aug 05, 2009 3:27 pm
Forum: Wireless Networking
Topic: 28V or 26V POE Injector
Replies: 18
Views: 3091

Re: 28V or 26V POE Injector

You can use a 48-60v Power Supply with a passive PEO, and build your own DC-DC converter to regulate at 12 or 24 volt.

The higher the voltage, the lower the power loss over distance.
Hence why electric companies transfer using tens of thousands of volts.
by tgrand
Wed Aug 05, 2009 6:36 am
Forum: Wireless Networking
Topic: How to increase throughput with RB433 card.
Replies: 6
Views: 2912

Re: How to increase throughput with RB433 card.

Inox,

In your illustration I only ever see 7.2Mbps over any of the WDS links.
by tgrand
Sat Aug 01, 2009 6:59 pm
Forum: Wireless Networking
Topic: How to increase throughput with RB433 card.
Replies: 6
Views: 2912

Re: How to increase throughput with RB433 card.

Don't use WDS.

Try the following:
http://wiki.mikrotik.com/wiki/Transpare ... using_MPLS

Avoid bridging.
by tgrand
Wed Jul 29, 2009 3:18 pm
Forum: General
Topic: Newsletter #17
Replies: 23
Views: 5037

Re: Newsletter #17

It is possible that perhaps an arp entry must exist for the MAC.
by tgrand
Mon Jul 27, 2009 10:59 pm
Forum: Scripting
Topic: API Links
Replies: 123
Views: 83375

Re: API examples

There is a vb.net sample on the forums.
Do a search
by tgrand
Sat Jul 25, 2009 8:22 pm
Forum: Wireless Networking
Topic: Wireless Issue
Replies: 2
Views: 575

Re: Wireless Issue

Sounds like a bad signal path.
But RK is correct in saying that we need more detail.
by tgrand
Sat Jul 25, 2009 5:56 am
Forum: Wireless Networking
Topic: Solving 20km wireless link issues
Replies: 147
Views: 101434

Re: New 20km link, weird interference.

changeip,

Try lowering your tx power in half at both ends.
Check rx strengths again.
by tgrand
Tue Jul 21, 2009 6:03 am
Forum: Wireless Networking
Topic: Wireless point to point link with /30 mask on IP
Replies: 2
Views: 682

Re: Wireless point to point link with /30 mask on IP

If you need to bridge try using eoip.
If you just routing then do just that, and route using rip or ospf, or in simple cases just use static routing.
by tgrand
Tue Jul 21, 2009 5:47 am
Forum: Wireless Networking
Topic: Solving 20km wireless link issues
Replies: 147
Views: 101434

Re: New 20km link, weird interference.

Sorry JP, but that is not necessarily true. Reflections can be strong enough to cause the LNA to become saturated causing the low signal strengths. Metal structures can be troublsome. Try lowering the Output power and see if the receive strength increases. Metal distorts magnetic fields. Microwave c...
by tgrand
Sat Jul 18, 2009 5:12 pm
Forum: General
Topic: N Spatial versus Polar Diversity
Replies: 4
Views: 1766

N Spatial versus Polar Diversity

Any one test spatial diversity on N links versus Polar diversity ?

If so; What were the results?
by tgrand
Sat Jul 18, 2009 5:09 pm
Forum: Wireless Networking
Topic: R5H power consumption
Replies: 7
Views: 980

Re: R5H power consumption

At the very least practice due diligence, by trying to learn the basics,
as the Basics are extremely important.

There are a lot of good books.

Fun to play with also.
by tgrand
Sat Jul 18, 2009 4:12 pm
Forum: Wireless Networking
Topic: R5H power consumption
Replies: 7
Views: 980

Re: R5H power consumption

Basic electronics should be a required aptitude in this business.
It is (or at least was) a requirement for ham radio license.
by tgrand
Sat Jul 18, 2009 4:08 pm
Forum: General
Topic: ups !!!!!!!!!!!!!!!!
Replies: 30
Views: 7557

Re: ups !!!!!!!!!!!!!!!!

Or use a UPS which support SNMP management.
by tgrand
Sat Jul 18, 2009 4:03 pm
Forum: Wireless Networking
Topic: R5H power consumption
Replies: 7
Views: 980

Re: R5H power consumption

1.6 @ 3.3v
Convert to power (Watts).

Add up the total wattage required for all devices including router board, and power loss over the cable.
The convert back to Current for the supply voltage.
by tgrand
Wed Jul 15, 2009 12:52 am
Forum: Wireless Networking
Topic: Integrated Antenna Not working with RB433
Replies: 4
Views: 715

Re: Integrated Antenna Not working with RB433

In answering your question:
On the compex cards I have found that the aux port corresponds to antenna A, while the main port corresponds to antenna B.

If you have this wrong you will see ~30db loss of signal.

As far as panel size and distance, take caution as previous posts have suggested.
by tgrand
Wed Jul 08, 2009 3:11 pm
Forum: General
Topic: r2n POWER WhY IS 20db not 25db
Replies: 13
Views: 3171

Re: r2n POWER WhY IS 20db not 25db

2 channels would indicate a hit of half power = ~3db
This would indicate that 22db should be available.

If I am wrong please educate us as to why this would not be true.
by tgrand
Mon Jun 29, 2009 6:48 am
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 285960

Re: 802.11n

I see a few postings with ping times; Are these ping times just across the wireless 'N' link?
If so 60-69 ms is terrible.
Keeping latencies down is important also.

What is the deal with the high ping times?
by tgrand
Thu Jun 25, 2009 1:11 pm
Forum: Wireless Networking
Topic: Strange signal loss
Replies: 4
Views: 807

Re: Strange signal loss

what are the antenna heights of the 2 clients and the AP?
by tgrand
Tue Jun 23, 2009 6:03 pm
Forum: Wireless Networking
Topic: Strange signal loss
Replies: 4
Views: 807

Re: Strange signal loss

The poor ccq on the bad ap should give it away. If the card has 2 antenna connectors try the alternate, and remember to change it in the wireless settings. Next try changing the card. If that still does not work then replace LMR cabling with New. Then Pigtails. Then Antennas. If all these steps stil...
by tgrand
Tue Jun 23, 2009 5:56 pm
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 285960

Re: 802.11n

The version was at V4beta3
The license level was at Level 4.

Still applying the upgrade to the license, did not change the above information, yet the R52H was then discovered.
No Confusion, just strangeness.
by tgrand
Tue Jun 23, 2009 3:31 pm
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 285960

Re: 802.11n

Thanks Omega.

Bizarre that one would have to upgrade the license even though it showed Level 4 as the license.
The only noticable change was that the R52N is now being recognized.

Thanks again.
by tgrand
Tue Jun 23, 2009 5:17 am
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 285960

Re: 802.11n

Ok. In all the ranter somebodies request when unheard. regarding the R5(2)N card not being recognized by the Router OS V4beta3. I also have encountered this. I have yet to see a real R52N card work. It it beyond comprehension that some cards are recognized and some are not. Is it a batch problem? If...
by tgrand
Sun Jun 21, 2009 2:12 am
Forum: The Dude
Topic: Notifications from Dude Server
Replies: 1
Views: 878

Notifications from Dude Server

I have dude server installed on a 433auh. I want to run a script on the 433auh on a notification. can this be done and how. execute on server is not listed. [edit] Would really like to access rb433auh connected gsm device for sms. Cell Carrier sms page requires authentication. email server requires ...
by tgrand
Thu Jun 11, 2009 3:12 pm
Forum: Wireless Networking
Topic: R52N - Antenna Mode 11a
Replies: 16
Views: 3326

Re: R52N - Antenna Mode 11a

Yes,
7+7=10 when talking db.
You really have to add the power 10mW + 10 mW = 20mW

Then convert to db.
10mW = ~10db
20mW = ~13db

Or do the math in db and add 3db to double the power,
or subtract 3db to divide in half the power.
by tgrand
Fri Jun 05, 2009 5:46 pm
Forum: Wireless Networking
Topic: Horizontal polarization right solution?
Replies: 5
Views: 861

Re: Horizontal polarization right solution?

Horizontal will degrade less with completely open freznel.
If you have moderate foliage you will find that vertical will work better POTENTIALLY.
by tgrand
Tue Jun 02, 2009 9:04 pm
Forum: Wireless Networking
Topic: Track a client from which AP they are registered too
Replies: 4
Views: 691

Re: Track a client from which AP they are registered too

Depends upon how your network is set up.
If you have a form of authentication through radius or usermanager, then you could view the users session data which should tell you the IP address of the AP they are connected to.
by tgrand
Mon Jun 01, 2009 6:36 pm
Forum: General
Topic: Public IP Routing without NAT
Replies: 57
Views: 22679

Re: Public IP Routing without NAT

Chupaka has been as clear as he can be.

Whithout knowing more about the layout of your network, no more detailed help can be provided.
by tgrand
Mon Jun 01, 2009 6:25 pm
Forum: Wireless Networking
Topic: singnal strength and tx signal strength difference of 15-20?
Replies: 5
Views: 1291

Re: singnal strength and tx signal strength difference of 15-20?

There are 2 amps.
Receive and transmit.
by tgrand
Fri May 29, 2009 10:11 pm
Forum: Wireless Networking
Topic: Grid Antenna & Metal Structures
Replies: 4
Views: 684

Re: Grid Antenna & Metal Structures

You do have to be careful.
You also have to worry about reflections to other antennas on the same structure.

Grain Silos can be tricky.