March 2011 - Bird-users - Mailing Lists

bird.conf before going into Production
by info＠naucum.net 26 Mar '11

26 Mar '11

Dear Bird Users. Just wanted to know if that is a working bird config and 1 more question. Scenario: I have an AS and 2x /24 (lets say 193.1.1.1 and 194.1.1.1) networks assigned to my as. Furthermore I have 2 uplink providers. AS1 and AS2. I want most of the traffic to go thru AS1. AS2 should act as backup uplink. My as is defined here as AS0. ---begin--- router id 193.1.1.1; log "/var/pfad/bird.log protocol device { scan time 60;} protocol static static_bgp { import all; route 193.1.1.0/24 unreachable; route 194.1.1.0/24 unreachable; protocol kernel{ import all; export all; } ###################### # FILERS DEF # ###################### filter bgp_IN { if (net ~ [ 169.254.0.0/16+, 172.16.0.0/12+, 192.168.0.0/16+, 10.0.0.0/8+, 224.0.0.0/4+, 240.0.0.0/4+, 0.0.0.0/32-, 0.0.0.0/0{31,32}, 0.0.0.0/0{0,7} ];) then reject; accept; } filter bgp_OUT { if (net ~ [193.1.1.0/24, 194.1.1.0/24]) then accept; else reject; } filter bgp_OUT_P { if (net ~ [193.1.1.0/24, 194.1.1.0/24]) then { bgp_path.prepend(0); ---> My AS# bgp_path.prepend(0); bgp_path.prepend(0); accept; } else reject; } ###################### # / FILERS DEF # ###################### ###################### # BGP CONF # ###################### protocol bgp THRU_AS1 { local as 0; source adress 193.1.1.1; neighbor 1.1.1.2 as 1; default bgp_local_pref 100; path metric 0; default bgp_med 1; import filter bgp_IN; export filter bgp_OUT; } protocol bgp THRU_AS2 { local as 0; source adress 193.1.1.1; neighbour 2.2.2.3 as 2; default bgp_local_pref 200; path metric 0; default bgp_med 1; import filter bgp_IN; export filter bgp_OUT_P; } ---END of conf.--- Would this work? Can someone show me how I could act as uplink for someone else? What would I need to add in the config so AS7 is connected to my as and wants an uplink from me with full routing table ? Cheers in advanced, Victor

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[SOLVED] Re: bird.conf before going into Production
by info＠naucum.net 26 Mar '11

26 Mar '11

I understand. Thank you! Bye, Victor > On 26.3.2011 22:12, info(a)naucum.net wrote: >> Thank you very much Ondrej. I apreciate it very much. >> >> -----snip------ >> >> >>> filter CLIENT_OUT { >>> if source = RTS_BGP then accept; >>> if (net ~ [193.1.1.0/24, 194.1.1.0/24]) then accept; >>> reject; >>> }; >> >> >> ----snip------ >> >> Have you forget this in the CLIENT_OUT filter? ----> "C.C.C.0/24" >> >>> if (net ~ [193.1.1.0/24, 194.1.1.0/24, C.C.C.0/24]) then accept; ????? > > No, you do not want to export client's IPs to the client back. But > this would not cause any problems. > > Ondrej > > >> >> >> Cheers, >> Victor >> > >

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Re: bird.conf before going into Production
by info＠naucum.net 26 Mar '11

26 Mar '11

Thank you very much Ondrej. I apreciate it very much. -----snip------ > filter CLIENT_OUT { > if source = RTS_BGP then accept; > if (net ~ [193.1.1.0/24, 194.1.1.0/24]) then accept; > reject; > }; ----snip------ Have you forget this in the CLIENT_OUT filter? ----> "C.C.C.0/24" > if (net ~ [193.1.1.0/24, 194.1.1.0/24, C.C.C.0/24]) then accept; ????? Cheers, Victor

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Wiki + route server example
by Ondrej Filip 26 Mar '11

26 Mar '11

Hi! I modified BIRD's homepage - http://bird.network.cz a little bit. I included link to BIRD's wiki - https://git.nic.cz/redmine/projects/bird/wiki and I also added one more example. This could be interesting for thouse of you who want to run BIRD as route server at Internet eXchange Point. It written in sweet Czenglish - https://git.nic.cz/redmine/projects/bird/wiki/Route_server_example Do not hesitate to comment, contribute, .... :-) Ondrej

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Re[2]: Problem with redistribute static routes from venet (openvz pseudointerface)
by Łukasz Chrustek 26 Mar '11

26 Mar '11

Hello, > On 20.3.2011 22:33, Łukasz Chrustek wrote: >> Hello, >> >> I would like to import routes (ips exactly, with netmask /32) added by >> openvz virtualization to main ruting kernel table, when the >> virtualization system starts. I don't want to be misunderstand, but in >> quagga it works :), and I would like to test (and switch to) bird. >> Unfortunetly in bird I can't see the routes(ips) from venet0, see >> below. My configuration (most important parts, if You think You will >> need more, please let me now): > Hi! > Can you send us: > show interfaces > show protocols all direct1 > show route protocol direct1 > ? Ofcourse, here it is: 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 up (index=2) MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500 91.207.11.3/29 (Primary, broadcast 91.207.11.7, scope univ) eth1 up (index=3) MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500 10.1.1.0/24 (Primary, broadcast 10.1.1.255, scope site) venet0 DOWN (index=5) PtP Multicast AdminUp LinkUp MTU=1500 bird> show protocols all direct1 name proto table state since info direct1 Direct master up 22:10 Preference: 240 Input filter: ACCEPT Output filter: REJECT Routes: 0 imported, 0 exported, 0 preferred Route change stats: received rejected filtered ignored accepted Import updates: 0 0 0 0 0 Import withdraws: 0 0 --- 0 0 Export updates: 0 0 0 --- 0 Export withdraws: 0 --- --- --- 0 bird> show route protocol direct1 bird> -- Best regards, Łukasz Chrustek

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ospf loading for ever...
by Arkadiusz Miskiewicz 24 Mar '11

24 Mar '11

Hi, I'm playing with ospf on few Linux hosts pretending to be routers in single LAN. Unfortunately one host has a problem. bird (1.2.5, git master) thinks route(r)s are "unreachable" (as seen by show ospf state all). It never gets into full state. All other routers have no such problem. There is no firewall here. Any clues? ps. is there bird related irc channel or do devs use irc? (arekm@freenode) config is: protocol ospf MyOSPF { debug all; rfc1583compat; import filter from_bgp; export none; area 0.0.0.0 { networks { x.x.x.0/22; }; interface "eth0" { }; }; } bird> show ospf neighbors MyOSPF: Router ID Pri State DTime Interface Router IP x.x.4.235 1 2way/other 00:32 eth0 x.x.4.253 x.x.4.190 1 2way/other 00:32 eth0 x.x.4.190 x.x.4.218 1 2way/other 00:31 eth0 x.x.4.218 x.x.5.242 1 loading/bdr 00:37 eth0 x.x.5.242 x.x.4.197 1 2way/other 00:32 eth0 x.x.4.197 x.x.4.82 1 2way/other 00:33 eth0 x.x.4.222 x.x.4.193 1 2way/other 00:33 eth0 x.x.4.193 x.x.5.159 1 loading/dr 00:36 eth0 x.x.5.159 x.x.4.223 1 2way/other 00:34 eth0 x.x.4.223 x.x.5.150 1 2way/other 00:33 eth0 x.x.5.150 x.x.5.137 1 2way/other 00:35 eth0 x.x.5.137 x.x.4.131 1 2way/other 00:35 eth0 x.x.4.245 x.x.4.230 1 2way/other 00:35 eth0 x.x.4.230 x.x.4.80 1 2way/other 00:35 eth0 x.x.4.215 x.x.4.217 1 2way/other 00:36 eth0 x.x.4.217 x.x.4.34 1 2way/other 00:36 eth0 x.x.4.216 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 up (index=2) MultiAccess Broadcast Multicast AdminUp LinkUp MTU=9000 x.x.5.135/22 (Primary, broadcast x.x.7.255, scope univ) x.x.5.140/22 (Secondary, broadcast x.x.7.255, scope univ) x.x.5.148/22 (Secondary, broadcast x.x.7.255, scope univ) x.x.5.146/22 (Secondary, broadcast x.x.7.255, scope univ) x.x.5.152/22 (Secondary, broadcast x.x.7.255, scope univ) x.x.5.154/22 (Secondary, broadcast x.x.7.255, scope univ) x.x.5.139/22 (Secondary, broadcast x.x.7.255, scope univ) x.x.5.144/22 (Secondary, broadcast x.x.7.255, scope univ) x.x.5.145/22 (Secondary, broadcast x.x.7.255, scope univ) eth1 DOWN (index=3) MultiAccess Broadcast Multicast AdminDown LinkDown MTU=1500 sit0 DOWN (index=5) MultiAccess AdminDown LinkDown MTU=1480 sixxs DOWN (index=15) PtP Multicast AdminUp LinkUp MTU=1280 veth-c700 up (index=19) MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500 x.x.5.135/32 (Primary, broadcast x.x.5.135, scope univ) bird> show ospf state all area 0.0.0.0 router x.x.4.223 unreachable network x.x.4.0/22 metric 10 router x.x.5.135 distance 0 stubnet x.x.4.0/22 metric 10 router x.x.5.159 unreachable network x.x.4.0/22 metric 10 external 2.95.55.0/24 metric2 10000 [...] external a.b.c.0/24 metric2 10000 external e.f.g.0/22 metric2 10000 external h.i.j.0/22 metric2 10000 external k.l.m.0/19 metric2 10000 router x.x.5.242 unreachable network x.x.4.0/22 metric 10 network x.x.4.0/22 dr x.x.5.159 unreachable router x.x.5.159 router x.x.4.80 router x.x.5.137 router x.x.4.217 router x.x.4.131 router x.x.4.82 router x.x.5.150 router x.x.5.242 router x.x.4.230 router x.x.4.235 router x.x.4.223 router x.x.4.197 router x.x.5.135 router x.x.4.190 router x.x.4.34 router x.x.4.193 router x.x.4.218 -- Arkadiusz Miśkiewicz PLD/Linux Team arekm / maven.pl http://ftp.pld-linux.org/

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where is my network with multihop bgp
by Arjan Filius 24 Mar '11

24 Mar '11

Hello Bird users, I tried to configure the/my first multihop bgp configuration for monitoring purposes, but i don't get the correct network exported. Our setup: 2 Bird bgp routers, connected with iBGP, and bot have there own transit's. the published /20 network work just fine for about one year now (no multihop). Now i'm setting up a multihop bgp with source an redundant internal VRRP address which belongs to that published /20 to another bird i've controll of, on both bgp routers. (so actually only the one which has the vrrp address is working/active) I've applied one "trick" as i don't know which transit is wil take now or in the feature, i set the next hop to it's source (the vrrp address) Everything seems to be exported (and imported on other side), except my /20 where it is all about. when i type: show route all export <myprotocolname> or show route xx.x.x/20 export it actually shows the /20 route but sniffing learnes the actually it is't get published to the other side. The /20 gets published just fine for the regular transits, and i've no clue yet what is going on. Enabeling debug isn't for the protocol isn't currently what i like to on this production system. Has any an idea what might going on here? running bird 1.2.4 Arjan Filius Thanks in advance, -- Arjan Filius mailto:iafilius@xs4all.nl

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BGP Traffic Flood
by Nick 24 Mar '11

24 Mar '11

I upgraded a node from 1.2.3 to git, and now my node makes a flood of outgoing BGP traffic. The traffic consists in messages that repeat the same updates for a few routes. Here is one example (from tcpdump). Update Message (2), length: 63 Origin (1), length: 1, Flags [T]: IGP 0x0000: 00 AS Path (2), length: 22, Flags [T]: 64731 64768 64677 64602 64602 0x0000: 0205 0000 fcdb 0000 fd00 0000 fca5 0000 0x0010: fc5a 0000 fc5a Next Hop (3), length: 4, Flags [T]: 172.22.131.253 0x0000: ac16 83fd Updated routes: 172.22.2.0/23 This exact message repeated more than 10 times in only about 20 seconds. There are many more messages that also repeated more than 10 times in the same 20 seconds. -- Wanna turn ICANN into ICANN't? Join a darknet today: http://www.anonet2.org/darknet_comparison

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BSD compile issue with git head
by Chris Luke 23 Mar '11

23 Mar '11

Incomplete IPv6 types compiling on FreeBSD 8.x. There's a missing include in sysdep/unix/io.c: diff --git a/sysdep/unix/io.c b/sysdep/unix/io.c index 29be9a8..b6c1b86 100644 --- a/sysdep/unix/io.c +++ b/sysdep/unix/io.c @@ -22,6 +22,7 @@ #include <sys/un.h> #include <unistd.h> #include <errno.h> +#include <netinet/in.h> #include <netinet/icmp6.h> #include "nest/bird.h" This *should* be portable. Cheers, Chris.

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Next Release
by Andrew Lemin 23 Mar '11

23 Mar '11

Hi all, When is the next release of BIRD planned? We are desperately keen to test the multipath RIP routes functionality. :) Cheers, Andy. Monitor Computer Systems Limited Company Registration Number: NI 17805 Registered Office: 3 Pine Crest, Holywood, North Down, Northern Ireland BT18 9ED

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