June 2010 - Bird-users - Mailing Lists

how to confirm which capabilities have been negotiated
by Eiichiro Watanabe 24 Oct '11

24 Oct '11

Hello, Do we have an appropriate command to show which BGP capabilities have been negotiated on bird after a peer has been established? Of course, I known I can recognize when I look into packets captured, or confirm it on the neighbor router by using "show ip bgp neighbor x.x.x.x" command (in the case of CiscoIOS). it wouldn't be smart. Thanks, eiichiro -- ################################################### Eiichiro Watanabe Internet Multifeed Co.

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BIRD at MSK-IX
by Mikhail A. Grishin 27 May '11

27 May '11

Hi, We successfully finished the process of adaptation BIRD to MSK-IX network. Currently BIRD is running on both IPv4 Route Servers (version 1.2.0 with some patches from Ondrej Zajicek). Also we modified our public Looking Glass service. It's available via: http://www.msk-ix.ru/eng/lookingglass.html Thank you for help and cooperation! -- Mikhail A. Grishin E-mail: magr(a)ripn.net

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RE: Why filter not work for two cases?
by Владислав Гришин 13 Jul '10

13 Jul '10

Почему лучший маршрут в таблице маршрутизации из протокола статик а не из протокола BGP ? Vladislav Grishin

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BGP Error: No listening socket
by Владислав Гришин 10 Jul '10

10 Jul '10

Hi! I have been forced to change customisations of network interfaces on a server with bird. After modification bird.conf I has checked up availability of BGP neighbors. Everything is all right. ping ok. telnet <ip of bgp neighbor> 179 - ok. After restart bird see error in/var/log/messges May 12 10:03:01 border-t2 bird: Reconfiguring May 12 10:03:01 border-t2 bird: Enabling protocol bgpfiord May 12 10:03:01 border-t2 bird: Enabling protocol bgpabonent May 12 10:03:01 border-t2 bird: Reconfigured May 12 10:03:01 border-t2 bird: sk_open: bind: Cannot assign requested address May 12 10:03:01 border-t2 bird: BGP: Unable to open listening socket May 12 10:03:01 border-t2 bird: sk_open: bind: Cannot assign requested address May 12 10:03:01 border-t2 bird: BGP: Unable to open listening socket OSPF the protocol works perfectly. BGP no. [root@border-t2 etc]# ping 93.191.9.205 PING 93.191.9.205 (93.191.9.205) 56(84) bytes of data. 64 bytes from 93.191.9.205: icmp_seq=1 ttl=64 time=0.799 ms 64 bytes from 93.191.9.205: icmp_seq=2 ttl=64 time=0.824 ms 64 bytes from 93.191.9.205: icmp_seq=3 ttl=64 time=0.836 ms --- 93.191.9.205 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2002ms rtt min/avg/max/mdev = 0.799/0.819/0.836/0.036 ms [root@border-t2 etc]# bird> show protocols myospf name proto table state since info myospf OSPF master up 09:37 Running bird> bird> show protocols bgpabonent name proto table state since info bgpabonent BGP testable down 10:02 Error: No listening socket bird> bird> show protocols bgpfiord name proto table state since info bgpfiord BGP master down 10:02 Error: No listening socket bird> [root@border-t2 ~]# birdc BIRD 1.2.3 ready. bird> show interfaces lo up (index=1) MultiAccess AdminUp LinkUp Loopback Ignored MTU=16436 127.0.0.1/8 (Primary, broadcast 127.255.255.255, scope host) eth0 DOWN (index=2) MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500 eth1 DOWN (index=3) MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500 eth2 up (index=4) MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500 10.16.1.73/24 (Primary, broadcast 10.16.1.255, scope site) eth0.20 up (index=5) MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500 192.168.20.1/24 (Primary, broadcast 192.168.20.255, scope site) eth0.701 up (index=6) MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500 93.191.9.206/30 (Primary, broadcast 93.191.9.207, opposite 93.191.9.205, scope univ) <-----FOR bgpfiord eth1.10 up (index=8) MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500 192.168.10.1/24 (Primary, broadcast 192.168.10.255, scope site) eth1.550 up (index=9) <------FOR OSPF and bgpabonent MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500 10.10.1.2/25 (Primary, broadcast 10.10.1.127, scope site) sit0 DOWN (index=10) MultiAccess AdminUp LinkDown MTU=1480 bird> bird> show interfaces summary interface state address lo up 127.0.0.1/8 eth0 DOWN eth1 DOWN eth2 up 10.16.1.73/24 eth0.20 up 192.168.20.1/24 eth0.701 up 93.191.9.206/30 <--for bgpfiord eth1.10 up 192.168.10.1/24 eth1.550 up 10.10.1.2/25 <--for bgpabonent and myospf sit0 DOWN bird> I can not understand in any way that happens? What to check up? Vladislav Grishin

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bgp protocol info in passive mode
by Arjan Filius 02 Jul '10

02 Jul '10

Hello Bird-users, Currently making some monitor scripts, and working on that i noticed a little difference with 2 (ipv4 and ipv6) export-only bgp protocols. ipv4: bird> show protocols name proto table state since info <snip> bgp_Arjan_Filius BGP master start Jun25 Passive ipv6: bird> show protocols name proto table state since info <snip> bgp_Arjan_Filius BGP master start Jun25 Idle Notice the difference in the info field on both the ipv6 and ipv4 definition i'd used the "passive on;" statement Both the protocol definitions are exactly the same, apart from the neighbor definition. The only difference is the ipv4 neigbor is in a direct connected subnet, where the ipv6 isn't. After "fixing" the ipv6 passive neigbor to a direct connected ip i got the "Passive" in the info field. I'm not sure what is the correct behaviour, but displaying passive when actually passive eases my monitoring scripts. Regards -- Arjan Filius mailto:iafilius@xs4all.nl

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Nagios plugin
by Stéphan Kochen 25 Jun '10

25 Jun '10

Hello list, Here's a quick plug-in for Nagios to monitor a specific protocol: http://github.com/stephank/nagios-bird I wrote this, because a quick Google and search through this list's archives didn't turn up anything. Correct me if I'm wrong here. Feel free to make requests or suggestions for other BIRD things you may want to monitor through Nagios. I was thinking of writing a plugin that monitors a specific prefix or destination and ensures there's a route. But if there's other ideas out there, share, and I'll consider them. Regards, -- Stéphan Kochen

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No routes seen, as32 issue?
by Simone Morandini 24 Jun '10

24 Jun '10

Hi bird-users, I'm having a problem with the latest member I've connected to the route server. I followed the same procedure as the others (generating the config file with a script), but although the session is actually established, he doesn't receive any of the routes announced on the route server. bird> show protocols all MYPEER Routes: 1 imported, 0 exported, 35 preferred Route change stats: received rejected filtered ignored accepted Import updates: 1 0 0 0 1 Import withdraws: 0 0 --- 0 0 Export updates: 1 1 0 --- 0 Export withdraws: 0 --- --- --- 0 BGP state: Established while, for example, for our router (MIX) it shows: bird> show protocols all MIX Routes: 1 imported, 635 exported, 34 preferred Route change stats: received rejected filtered ignored accepted Import updates: 1 0 0 0 1 Import withdraws: 0 0 --- 0 0 Export updates: 1009 1 0 --- 1008 Export withdraws: 372 --- --- --- 372 MYPEER announces only one network and I'm actually receiving it both via the direct peering and the route server, but he doesn't receive any routes from the other neighbors. He is not sending any communities to the RS, nor he is filtering. He just applies a specific local preference to the bgp session with the RS. MYPEER has a 32-bit ASN. I know that BIRD (I'm running v. 1.2.2) is AS32 compliant, but this is the only difference with respect to the other RS participants. Any clue on where to look further? TIA, Simone. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

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showing all possible AS-paths?
by Arjan Filius 23 Jun '10

23 Jun '10

Hello Bird-users, Is there a way to get all route AS-path's information , and not just the slected path? either all, or just a specific route? I can see all routes, with it's selected path, but not (or don't know how to do it) all possible AS-path's. Thanks in advance Regards, -- Arjan Filius mailto:iafilius@xs4all.nl

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RIP multicast is receiving, but can't transmit
by Stéphan Kochen 19 Jun '10

19 Jun '10

Hello! I'm setting up a test environment with Ubuntu 10.04 and BIRD 1.2.3 from the PPA. First step was to try and get a simple static route announced with RIP. This is the small test configuration I'm working with: > log stderr all; debug protocols all; > router id 10.2.2.1; > > protocol device { scan time 10; } > protocol kernel { export all; import none; } > > protocol static { route 10.5.5.0/24 via 10.2.2.2; } > > protocol rip { > interface "eth0" { mode multicast; }; > export all; import all; > } With this set-up, the static route is imported, and exported to the kernel and RIP protocols as expected: > 11-06-2010 13:18:19 <TRACE> kernel1 < added 10.5.5.0/24 via 10.2.2.2 on eth1 > 11-06-2010 13:18:19 <TRACE> rip1 < added 10.5.5.0/24 via 10.2.2.2 on eth1 > 11-06-2010 13:18:19 <TRACE> kernel1: 10.5.5.0/24: reinstalling There's a Quagga ripd in the network announcing another route for a subnet that lives inside a VLAN. It's picked up by the RIP protocol: > 11-06-2010 13:18:19 <TRACE> rip1: block: 192.168.123.6 tells me: 10.123.16.0/20 available, metric 1... > 11-06-2010 13:18:19 <TRACE> rip1 > added [best] 10.123.16.0/20 via 192.168.123.6 on eth0 > 11-06-2010 13:18:19 <TRACE> kernel1 < added 10.123.16.0/20 via 192.168.123.6 on eth0 > 11-06-2010 13:18:19 <TRACE> rip1 < forced accept by protocol 10.123.16.0/20 via 192.168.123.6 on eth0 > 11-06-2010 13:18:19 <TRACE> rip1 < added 10.123.16.0/20 via 192.168.123.6 on eth0 But BIRD is unable to transmit the static route I created. The RIP protocol seems to know about the route, as indicated above, but when it tries to transmit, I get: > 11-06-2010 13:18:29 <TRACE> rip1: Broadcasting routing table to eth0 > 11-06-2010 13:18:29 <ERR> rip1: Unexpected error at rip transmit: Invalid argument > 11-06-2010 13:18:29 <ERR> rip1: Unexpected error at rip transmit: Unknown error 18446744073709551615 The code is littered with DBG statements that I cannot seem to enable in the output. I tried a manual build with --enable-debug, and I'm running bird in the foreground with -d, but I'm still not seeing them. What is the proper way to get to this information? And is there something simple I'm missing to get RIP to work? Thanks in advance, -- Stéphan Kochen

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syslog with a specific facility
by Arjan Filius 14 Jun '10

14 Jun '10

Hello bird-users We'd need functionality to send bird (remote) syslog as a specific facility. Are there any way's (planned) to do that? Tried with rsyslog to catch the bird logging, and sending it to a remote loghost, which works fine, except for the desired "relabeling" the facility. I see in the code in ./sysdep/unix/log.c:253 if (new_syslog_name) openlog(new_syslog_name, LOG_CONS | LOG_NDELAY, LOG_DAEMON); and changing LOG_DAEMON to the desired facility, and compiling/installing would do it i suppose. Any ideas if dynamic configuring syslog facility is on the roadmap, and if not may i make a request of it? Regards, Thanks in advance. -- Arjan Filius mailto:iafilius@xs4all.nl

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