Community discussions

MikroTik App

Search found 27 matches

by spoiler
Mon Sep 19, 2016 12:02 pm
Forum: General
Topic: ICMP showing as 'timeout' while packets being received.
Replies: 0
Views: 403

ICMP showing as 'timeout' while packets being received.

We recently faced a situation where ICMP Ping window is showing responses as timeout while the firewall logging rules are showing the echo reply being received. The setup is pretty simple: Phisically, A CCR1072 and a CCR1036 connected via a 10G Huawei switch, both using a VLAN tagged on the CCRs. Th...
by spoiler
Thu Oct 24, 2013 2:55 pm
Forum: RouterBOARD hardware
Topic: CLOUD CORE ROUTER
Replies: 1374
Views: 1036175

Re: CLOUD CORE ROUTER

We also had the flapping problem (only one eth was 'safe'). We solved it avoiding ethernet11 usage on a bridge (eoip<->eth) using sfp2 instead for that bridge (eoip<->sfp2). OSPF enabled in this ccr. Also had another 'flapper' ccr which stopped magically flapping (or maybe due to MPLS package disabl...
by spoiler
Wed Jun 26, 2013 12:24 pm
Forum: General
Topic: Problematic BFD on 6.0
Replies: 7
Views: 3189

Re: Problematic BFD on 6.0

Same here with 6.1 Before upgrade, everything was fine with BFD. All BFD neighbors stop responding after some period of time (minutes). It happens when BFD is enabled on the remote side, not if only enabled in local. Remote nodes are mixed versions: 5.21, 6.0, 6.1 with no significant differences. Lo...
by spoiler
Wed Mar 06, 2013 12:55 pm
Forum: General
Topic: API bugs
Replies: 1
Views: 519

API bugs

With the new versions including those on the 6 branch, API is becoming more unstable and erratic. Some of the new 'bugs' noticed: -SNMP: Some devices have default community (the one with the '*') which can not be deleted and some other devices do not have them. It would be nice that it was not hardw...
by spoiler
Tue May 15, 2012 11:04 am
Forum: General
Topic: Router OS versions (example x.5 & x.15 &x.05)
Replies: 27
Views: 10912

Re: Router OS versions (example x.5 & x.15 &x.05)

Had some headache when programming our auto version upgrader-downgrader due to this...
A note: netinstall was not in classroom when we learned to count versions. He thinks 5.8 > 5.12 :D
by spoiler
Thu Apr 26, 2012 11:20 am
Forum: Scripting
Topic: How to save the interface rate to a variable??
Replies: 3
Views: 928

Re: How to save the interface rate to a variable??

I the 'Rate' refers to the current speed of the ethernet interface, AFAIK the only way is via SNMP, at oid "1.3.6.1.2.1.2.2.1.5.$interface"

I would really like to be able to use in scripting but at the moment you have to use an external apliaction that combines API and SNMP, p.ex.
by spoiler
Wed Mar 21, 2012 12:15 pm
Forum: General
Topic: EoIP slow high latency
Replies: 14
Views: 8386

Re: EoIP slow high latency

Very similar problem and same question ;)
by spoiler
Sat Sep 17, 2011 8:55 am
Forum: Wireless Networking
Topic: TCP bandwidth test
Replies: 7
Views: 3259

Re: TCP bandwidth test

I think this is not the problem as same the tests on the other side are showing really higher rates :(
(there are 400 symetric mbits FO to the Internet)
by spoiler
Fri Sep 16, 2011 5:37 pm
Forum: Wireless Networking
Topic: TCP bandwidth test
Replies: 7
Views: 3259

Re: TCP bandwidth test

Ok, this sounds good... but there is something I did not mention... if you run the tests in the oposite direction, it reaches the correct speed. If I undersatand what you explain, the results on both directions should be the same (as window sizes and roundtrips should be the same). Any ideas on how ...
by spoiler
Mon Aug 22, 2011 1:55 pm
Forum: Wireless Networking
Topic: same Radio Mobile
Replies: 5
Views: 982

Re: same Radio Mobile

The application's name is "Globbal Mapper". You will find the pricings on their site.
by spoiler
Fri Aug 19, 2011 10:18 am
Forum: Wireless Networking
Topic: same Radio Mobile
Replies: 5
Views: 982

Re: same Radio Mobile

Not free, but fully featured: global mapper
I use it to build our coverage maps, check los and fresnels, orientations...
by spoiler
Wed Aug 17, 2011 2:55 pm
Forum: RouterBOARD hardware
Topic: 802.3af - MT discontinue products - no suitable replacements
Replies: 16
Views: 6478

Re: 802.3af - MT discontinue products - no suitable replacem

+1 We have some sites with standby backup links with rb800, one radio card only. CPUs had to be lowered to 400MHz because they where rebooting (due to 'overload' events on the switch). When those links become active, they keep alive only for some minutes, after that, they reboot (they take longer ti...
by spoiler
Fri Aug 12, 2011 10:15 am
Forum: Forwarding Protocols
Topic: OSPF on EoIP not working
Replies: 3
Views: 3027

Re: OSPF on EoIP not working

If you enable ospf logging maybe you get the answer...

/system logging add topics=ospf action=memory

Maybe you have MTU related issues.
by spoiler
Thu Aug 11, 2011 7:25 pm
Forum: Wireless Networking
Topic: TCP bandwidth test
Replies: 7
Views: 3259

TCP bandwidth test

Hi, we have a link with 70Mbits upload/download with UDP and about 60Mbits TCP U/D with 20 connections. The link is N mode with 40MHz nstreme, only bridging and routing. When using standard Internet speedtests on one side of this link, the result on this link is a 'horrible' 14Mbits (they use a sing...
by spoiler
Mon Jul 18, 2011 1:06 pm
Forum: General
Topic: What does the 'Any. port' in firewall/nat/mangle stand for
Replies: 1
Views: 5907

What does the 'Any. port' in firewall/nat/mangle stand for

I was wondering what is the main function of the 'Any.port' field when creating a new fw/nat/mangle rule in winbox.
No luck searching in the manual...
by spoiler
Mon Jul 18, 2011 12:58 pm
Forum: Forwarding Protocols
Topic: VPLS great throughput
Replies: 5
Views: 3045

Re: VPLS great throughput


In my experience the big deal is to mix RB and X86 in an mpsl-vpls enviroment. In this case you have to fine tune the MTU and (rb side, the L2MTU).
I think to help MT should implement, on OSPF, the ip ospf mtu-ignore .
+1

And also ospf subinterfaces.
by spoiler
Thu May 19, 2011 11:22 am
Forum: Forwarding Protocols
Topic: OSPF Multi access network with different costs?
Replies: 1
Views: 850

OSPF Multi access network with different costs?

Hi, I need to specify different OSPF costs for the relationships between a client router and two server routers (primary-backup) on the same layer 2 network, as the client router is on the other side of a wireless link. I need to avoid the creation of vlans as this situation is very frequent and wou...
by spoiler
Wed May 11, 2011 1:17 pm
Forum: General
Topic: Intel 82574L Gigabit Ethernet controller
Replies: 21
Views: 10225

Re: Intel 82574L Gigabit Ethernet controller

Hi, we are working with this this controllers and we are experiencing a limited L2MTU. Deploying those on a MPLS-VPLS environment, MPLS-MTU has to be reduced to 1500 when traffic is crossing this chipsets (otherwise it can be set to 1522 without problems). TCP MSS on standard IP traffic through this...
by spoiler
Fri Nov 30, 2007 7:41 pm
Forum: General
Topic: VPN traffic traveling through MKT is limited to 10 tunnels?
Replies: 9
Views: 1539

Re: VPN traffic traveling through MKT is limited to 10 tunnels?

gonna do the debugging and post them.

About licencing for ci$co, it is not the problem: using an alternative gateway works fine.
by spoiler
Wed Nov 28, 2007 5:51 pm
Forum: General
Topic: VPN traffic traveling through MKT is limited to 10 tunnels?
Replies: 9
Views: 1539

Re: VPN traffic traveling through MKT is limited to 10 tunnels?

No NAT at all... and conntrack has been tested ON and OFF.

Other information I have been able to get: We are having CRCs on the ethernet (reported on cisco side). May it be a problem for that traffic?
by spoiler
Wed Nov 28, 2007 10:59 am
Forum: General
Topic: VPN traffic traveling through MKT is limited to 10 tunnels?
Replies: 9
Views: 1539

Re: VPN traffic traveling through MKT is limited to 10 tunnels?

I assume it is not limited because in fact, this traffic is not generated by the device. It is traffic flowing through it. I have more information about the case: Negotiations seem to accomplish for all the tunnels. The problem is keep alive traffic, I think it is protocol 50. This is the traffic th...
by spoiler
Tue Nov 27, 2007 12:59 pm
Forum: General
Topic: VPN traffic traveling through MKT is limited to 10 tunnels?
Replies: 9
Views: 1539

Re: VPN traffic traveling through MKT is limited to 10 tunnels?

What level is the RouterOS liscence?

Regards
Leon
Level 4
by spoiler
Mon Nov 12, 2007 7:29 pm
Forum: General
Topic: VPN traffic traveling through MKT is limited to 10 tunnels?
Replies: 9
Views: 1539

VPN traffic traveling through MKT is limited to 10 tunnels?

Hi, I have a MK device (rb500R5 2.9.46 OS) without conntrack routing traffic between ether1 and wlan1(SR2) and wlan2(SR5). Just to mention that OSPF is deciding if wlan1 or wlan2 is the default gateway. On the eth side, there is a Cisco device tunneling traffic (IPSEC) to 18 remote sites. This devic...
by spoiler
Fri Mar 17, 2006 5:05 pm
Forum: General
Topic: How to avoid dst-nat masquing origin IP address...
Replies: 5
Views: 1233

Your rule:
chain=srcnat action=masquerade
Will match everything.

Since you can't match on outgoing interface, due to your routing, just match on the IPs you want to MASQ:
chain=srcnat src-address=10.154.24.0/24 action=masquerade
--Eric
Txs alot, that really solved the problem!
by spoiler
Wed Mar 15, 2006 8:23 pm
Forum: General
Topic: How to avoid dst-nat masquing origin IP address...
Replies: 5
Views: 1233

I have used many other reverse nat devices (ci$co,netscreen,...) and they do not act this way... About the post from yancho, I think that should not solve the problem as the rule you specify is the outgoing one. In fact, i need it that way because of an "auto-swapping" default route that swings from...
by spoiler
Wed Mar 15, 2006 1:11 pm
Forum: General
Topic: How to avoid dst-nat masquing origin IP address...
Replies: 5
Views: 1233

How to avoid dst-nat masquing origin IP address...

I have a dst-nat rule that redirects connections to the untrusted interface on port 21 to the internal ip where ftp server resides, obviously to port 21. The problem is that logs in the ftp server use to reflect the internal IP address of the router as the ftp session origin. Is there a way to avoid...
by spoiler
Fri Mar 10, 2006 2:01 pm
Forum: General
Topic: Attention v2.9.16 users!
Replies: 11
Views: 2575

Nice, 2 hours trying to figure out why nearby servers worked and others not... and why icmp was working with all of them, thought it was a BGP issue...

Just as a note... if you downgrade, setting will keep unchanged!