May 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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Re: Compiling for IPv6
by Ondrej Filip 04 Jun '10

04 Jun '10

On 28.5.2010 11:51, Simone Morandini wrote: > Hi all, > > I'd like to set up an IPv6 instance of BIRD for our members, but I'm > having some troubles with "make". > When I issue "./configure --enable-ipv6" everything goes fine, but the > subsequent "make" at a certain poing gives these errors: > > [...] > gcc -I../ -I../.. -g -O2 -Wall -Wstrict-prototypes -Wno-parentheses > -Wno-pointer-sign -o bitops.o -c bitops.c > gcc -I../ -I../.. -g -O2 -Wall -Wstrict-prototypes -Wno-parentheses > -Wno-pointer-sign -o checksum.o -c checksum.c > gcc -I../ -I../.. -g -O2 -Wall -Wstrict-prototypes -Wno-parentheses > -Wno-pointer-sign -o event.o -c event.c > event.c: In function ‘ev_run_list’: > ../lib/lists.c:132: warning: dereferencing pointer ‘({anonymous})’ does > break strict-aliasing rules > ../lib/lists.c:115: note: initialized from here > gcc -I../ -I../.. -g -O2 -Wall -Wstrict-prototypes -Wno-parentheses > -Wno-pointer-sign -o io.o -c io.c > io.c: In function ‘sysio_process_rx_cmsgs’: > io.c:704: error: dereferencing pointer to incomplete type > io.c:705: error: dereferencing pointer to incomplete type > io.c: In function ‘sk_read’: > io.c:1380: error: invalid application of ‘sizeof’ to incomplete type > ‘struct in6_pktinfo’ > make[2]: *** [io.o] Error 1 > make[2]: Leaving directory `/usr/local/src/bird-1.2.2/obj/lib' > make[1]: *** [subdir] Error 2 > make[1]: Leaving directory `/usr/local/src/bird-1.2.2/obj' > make: *** [all] Error 2 > [root@rs1 bird-1.2.2]# > > > On the same machine BIRD compiles successfully without the v6 option. Am > I missing something basic here? > The box runs on a Fedora 12. Hi Simone, this is a known bug. It is fixed differently in current git repository, but you can for example use my hot fix from Fedora RPMs. (Attached). Ondrej > > Thanks a lot, > Simone. >

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< rejected by protocol ...
by Arjan Filius 31 May '10

31 May '10

Hello, Yet another question. having configured debug like: debug protocols { states, routes , filters}; in the global section. i see quite a lot messages on IPv4 and IPv6 bgp protocols: May 31 10:03:59 sbxbgpprd02 bird6: FiberRing_IPv6_111: Got UPDATE May 31 10:03:59 sbxbgpprd02 bird6: FiberRing_IPv6_111 > added 2001:40e8::/32 via 2a00:ec8::111 on fbr-ext--eth5 May 31 10:03:59 sbxbgpprd02 bird6: FiberRing_IPv6_111 < rejected by protocol 2001:40e8::/32 via 2a00:ec8::111 on fbr-ext--eth5 I do have the route # netstat -6 -rn |grep 2001:40e8:: 2001:40e8::/32 2a00:ec8::111 UG 1024 0 0 fbr-ext--eth5 It comes from the function do_rte_announce() in ./nest/rt-table.c but it is not clear to me. Thanks in advance, -- Arjan Filius mailto:iafilius@xs4all.nl

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Re: bird6 segfault
by Ondrej Zajicek 31 May '10

31 May '10

On Mon, May 31, 2010 at 09:05:40AM +0200, Arjan Filius wrote: > Hello Ondrej, bird-users, > > An updated report, and a bird6 with debug info included. > posted as html to prevent wrapping. Thanks, the problem found. We will fix it in the next release. -- Elen sila lumenn' omentielvo Ondrej 'SanTiago' Zajicek (email: santiago(a)crfreenet.org) OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net) "To err is human -- to blame it on a computer is even more so."

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bird6 segfault
by Arjan Filius 29 May '10

29 May '10

Hello, Starting to configure bird6 for iBGP and ran in a repeatable crash running 1.2.2 from ppa on ubuntu 10.04 LTS x64. as soon as i configure in a protocol bgp it's neighbor like: neighbor 2A00:1388:FFFF::3 as MYAS; bird6 crashes i unset the ulimit core to produce a core file, but no debugging info is included: # gdb `which bird6` core GNU gdb (GDB) 7.1-ubuntu Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>... Reading symbols from /usr/sbin/bird6...(no debugging symbols found)...done. [New Thread 16308] warning: Can't read pathname for load map: Input/output error. Reading symbols from /lib/librt.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/librt.so.1 Reading symbols from /lib/libc.so.6...(no debugging symbols found)...done. Loaded symbols for /lib/libc.so.6 Reading symbols from /lib/libpthread.so.0...(no debugging symbols found)...done. Loaded symbols for /lib/libpthread.so.0 Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols found)...done. Loaded symbols for /lib64/ld-linux-x86-64.so.2 Core was generated by `bird6'. Program terminated with signal 11, Segmentation fault. #0 0x00007f4c985bddd5 in ?? () (gdb) bt #0 0x00007f4c985bddd5 in ?? () #1 0x00007f4c985be22f in ?? () #2 0x00007f4c9859ec33 in ?? () #3 0x00007f4c98596850 in ?? () #4 0x00007f4c985bc447 in ?? () #5 0x00007f4c985be458 in ?? () #6 0x00007f4c985c1cec in main () (gdb) network on the interface is: 2a00:1388:ffff::2/124 as soon i change the IP a little so it leaves the /124 it doesn't crash anymore. i've a succesfull eBGP setup. Now to try to debug the situation i tried to compile a 1.2.2 ipv6 version from source, but i run stuck at the moment: ran: bird-1.2.2# ./configure --sysconfdir=/ --enable-debug --enable-ipv6 checking for gcc... gcc checking for C compiler default output file name... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... none needed checking for library containing clock_gettime... -lrt checking build system type... x86_64-unknown-linux-gnu checking host system type... x86_64-unknown-linux-gnu checking for gcc... (cached) gcc checking whether we are using the GNU C compiler... (cached) yes checking whether gcc accepts -g... (cached) yes checking for gcc option to accept ISO C89... (cached) none needed checking what CFLAGS should we use... -g -O2 -Wall -Wstrict-prototypes -Wno-parentheses -Wno-pointer-sign checking how to run the C preprocessor... gcc -E checking for a BSD-compatible install... /usr/bin/install -c checking for ranlib... ranlib checking for flex... flex checking for bison... bison checking for gm4... no checking for m4... m4 checking Linux kernel version... VERSION: UTS_RELEASE checking which OS configuration should we use... ./sysdep/cf/linux-v6.h checking system-dependent directories... sysdep/linux/netlink sysdep/linux sysdep/unix lib checking protocols... ok checking for linux/rtnetlink.h... yes checking for grep that handles long lines and -e... /bin/grep checking for egrep... /bin/grep -E checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking syslog.h usability... yes checking syslog.h presence... yes checking for syslog.h... yes checking alloca.h usability... yes checking alloca.h presence... yes checking for alloca.h... yes checking whether 'struct sockaddr' has sa_len... no checking whether byte ordering is bigendian... no checking for char... yes checking size of char... 1 checking for short int... yes checking size of short int... 2 checking for int... yes checking size of int... 4 checking for long int... yes checking size of long int... 8 checking for 8-bit type... char checking for 16-bit type... short int checking for 32-bit type... int checking usual alignment of structures... 16 checking characteristics of time_t... 64-bit signed checking for struct ip_mreqn... yes checking for dmalloc_debug in -ldmalloc... no checking for malloc in -lefence... no checking for add_history in -lhistory... yes checking for tgetent in -lncurses... yes checking for rl_callback_read_char in -lreadline... yes checking for rl_crlf in -lreadline... yes checking for rl_ding in -lreadline... yes configure: creating ./config.status config.status: creating Makefile config.status: creating obj/Makefile config.status: creating obj/Rules config.status: creating obj/sysdep/autoconf.h config.status: obj/sysdep/autoconf.h is unchanged config.status: executing merge commands Merging system-dependent modules (sysdep/linux/netlink sysdep/linux sysdep/unix lib) BIRD was configured with the following options: Source directory: . Object directory: obj System configuration: ./sysdep/cf/linux-v6.h Debugging: yes Routing protocols: bgp ospf pipe rip static Client: yes bird-1.2.2# make make -C obj all make[1]: Entering directory `/root/arfi/src/bird-1.2.2/obj' make depend make[2]: Entering directory `/root/arfi/src/bird-1.2.2/obj' mkdir -p nest filter proto/bgp proto/ospf proto/pipe proto/rip proto/static client doc touch .dir-stamp set -e ; for a in lib conf ; do make -C $a depend ; done make[3]: Entering directory `/root/arfi/src/bird-1.2.2/obj/lib' gcc -I../ -I../.. -MM bitops.c checksum.c event.c io.c ip.c ipv6.c krt.c lists.c log.c main.c md5.c mempool.c netlink.c patmatch.c printf.c random.c resource.c slab.c slists.c xmalloc.c >depend make[3]: Leaving directory `/root/arfi/src/bird-1.2.2/obj/lib' make[3]: Entering directory `/root/arfi/src/bird-1.2.2/obj/conf' m4 -P ../../conf/gen_keywords.m4 ../../conf/confbase.Y ../../sysdep/unix/config.Y ../../sysdep/unix/krt.Y ../../sysdep/linux/netlink/netlink.Y ../../nest/config.Y ../../filter/config.Y ../../proto/bgp/config.Y ../../proto/ospf/config.Y ../../proto/pipe/config.Y ../../proto/rip/config.Y ../../proto/static/config.Y >keywords.h m4 -P ../../conf/gen_commands.m4 ../../client/cmds.m4 ../../conf/confbase.Y ../../sysdep/unix/config.Y ../../sysdep/unix/krt.Y ../../sysdep/linux/netlink/netlink.Y ../../nest/config.Y ../../filter/config.Y ../../proto/bgp/config.Y ../../proto/ospf/config.Y ../../proto/pipe/config.Y ../../proto/rip/config.Y ../../proto/static/config.Y | sort >commands.h m4 -P ../../conf/gen_parser.m4 ../../conf/confbase.Y ../../sysdep/unix/config.Y ../../sysdep/unix/krt.Y ../../sysdep/linux/netlink/netlink.Y ../../nest/config.Y ../../filter/config.Y ../../proto/bgp/config.Y ../../proto/ospf/config.Y ../../proto/pipe/config.Y ../../proto/rip/config.Y ../../proto/static/config.Y >cf-parse.y bison -bcf-parse -dv -pcf_ cf-parse.y flex -s -B -8 -ocf-lex.c -Pcf_ cf-lex.l gcc -I../ -I../.. -MM cf-parse.tab.c cf-lex.c conf.c >depend make[3]: Leaving directory `/root/arfi/src/bird-1.2.2/obj/conf' set -e ; for a in nest filter proto/bgp proto/ospf proto/pipe proto/rip proto/static client ; do make -C $a -f /root/arfi/src/bird-1.2.2/$a/Makefile depend ; done make[3]: Entering directory `/root/arfi/src/bird-1.2.2/obj/nest' make[3]: `depend' is up to date. make[3]: Leaving directory `/root/arfi/src/bird-1.2.2/obj/nest' make[3]: Entering directory `/root/arfi/src/bird-1.2.2/obj/filter' make[3]: `depend' is up to date. make[3]: Leaving directory `/root/arfi/src/bird-1.2.2/obj/filter' make[3]: Entering directory `/root/arfi/src/bird-1.2.2/obj/proto/bgp' make[3]: `depend' is up to date. make[3]: Leaving directory `/root/arfi/src/bird-1.2.2/obj/proto/bgp' make[3]: Entering directory `/root/arfi/src/bird-1.2.2/obj/proto/ospf' make[3]: `depend' is up to date. make[3]: Leaving directory `/root/arfi/src/bird-1.2.2/obj/proto/ospf' make[3]: Entering directory `/root/arfi/src/bird-1.2.2/obj/proto/pipe' make[3]: `depend' is up to date. make[3]: Leaving directory `/root/arfi/src/bird-1.2.2/obj/proto/pipe' make[3]: Entering directory `/root/arfi/src/bird-1.2.2/obj/proto/rip' make[3]: `depend' is up to date. make[3]: Leaving directory `/root/arfi/src/bird-1.2.2/obj/proto/rip' make[3]: Entering directory `/root/arfi/src/bird-1.2.2/obj/proto/static' make[3]: `depend' is up to date. make[3]: Leaving directory `/root/arfi/src/bird-1.2.2/obj/proto/static' make[3]: Entering directory `/root/arfi/src/bird-1.2.2/obj/client' make[3]: `depend' is up to date. make[3]: Leaving directory `/root/arfi/src/bird-1.2.2/obj/client' make[2]: Leaving directory `/root/arfi/src/bird-1.2.2/obj' touch .dep-stamp set -e ; for a in lib conf ; do make -C $a subdir ; done make[2]: Entering directory `/root/arfi/src/bird-1.2.2/obj/lib' gcc -I../ -I../.. -g -O2 -Wall -Wstrict-prototypes -Wno-parentheses -Wno-pointer-sign -o bitops.o -c bitops.c gcc -I../ -I../.. -g -O2 -Wall -Wstrict-prototypes -Wno-parentheses -Wno-pointer-sign -o checksum.o -c checksum.c gcc -I../ -I../.. -g -O2 -Wall -Wstrict-prototypes -Wno-parentheses -Wno-pointer-sign -o event.o -c event.c event.c: In function âev_run_listâ: ../lib/lists.c:132: warning: dereferencing pointer â({anonymous})â does break strict-aliasing rules ../lib/lists.c:115: note: initialized from here gcc -I../ -I../.. -g -O2 -Wall -Wstrict-prototypes -Wno-parentheses -Wno-pointer-sign -o io.o -c io.c io.c: In function âsysio_process_rx_cmsgsâ: io.c:704: error: dereferencing pointer to incomplete type io.c:705: error: dereferencing pointer to incomplete type io.c: In function âsk_readâ: io.c:1380: error: invalid application of âsizeofâ to incomplete type âstruct in6_pktinfoâ make[2]: *** [io.o] Error 1 make[2]: Leaving directory `/root/arfi/src/bird-1.2.2/obj/lib' make[1]: *** [subdir] Error 2 make[1]: Leaving directory `/root/arfi/src/bird-1.2.2/obj' make: *** [all] Error 2 bird-1.2.2# Tried the ppa-source too, but same result. Anyone an idea: 1)what may go wrong causing the bird6 crash on startup? 2) what to do to get bird compiled from source. Thanks in advance. -- Arjan Filius mailto:iafilius@xs4all.nl

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Compiling for IPv6
by Simone Morandini 28 May '10

28 May '10

Hi all, I'd like to set up an IPv6 instance of BIRD for our members, but I'm having some troubles with "make". When I issue "./configure --enable-ipv6" everything goes fine, but the subsequent "make" at a certain poing gives these errors: [...] gcc -I../ -I../.. -g -O2 -Wall -Wstrict-prototypes -Wno-parentheses -Wno-pointer-sign -o bitops.o -c bitops.c gcc -I../ -I../.. -g -O2 -Wall -Wstrict-prototypes -Wno-parentheses -Wno-pointer-sign -o checksum.o -c checksum.c gcc -I../ -I../.. -g -O2 -Wall -Wstrict-prototypes -Wno-parentheses -Wno-pointer-sign -o event.o -c event.c event.c: In function ‘ev_run_list’: ../lib/lists.c:132: warning: dereferencing pointer ‘({anonymous})’ does break strict-aliasing rules ../lib/lists.c:115: note: initialized from here gcc -I../ -I../.. -g -O2 -Wall -Wstrict-prototypes -Wno-parentheses -Wno-pointer-sign -o io.o -c io.c io.c: In function ‘sysio_process_rx_cmsgs’: io.c:704: error: dereferencing pointer to incomplete type io.c:705: error: dereferencing pointer to incomplete type io.c: In function ‘sk_read’: io.c:1380: error: invalid application of ‘sizeof’ to incomplete type ‘struct in6_pktinfo’ make[2]: *** [io.o] Error 1 make[2]: Leaving directory `/usr/local/src/bird-1.2.2/obj/lib' make[1]: *** [subdir] Error 2 make[1]: Leaving directory `/usr/local/src/bird-1.2.2/obj' make: *** [all] Error 2 [root@rs1 bird-1.2.2]# On the same machine BIRD compiles successfully without the v6 option. Am I missing something basic here? The box runs on a Fedora 12. Thanks a lot, Simone. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

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showing pre/post imported routes?
by Arjan Filius 27 May '10

27 May '10

Hello bird-users, many thanks for the previous answers, but yet another question running bird 1.2.2 In order to prepare for running production, i try to check and see if "everything" is ok. advertized routes by my AS are easely showed with: show route preexport <BGPprotocol> [count] show route export <BGPprotocol> [count] which lets mee see easy what i propagate, and what i filter. now the oposite seems not so easy. i can use a : show route protocol <BGPprotocol> [count] but here is no pre/post (import) option. it is possible to apply a filter like: show route protocol <BGPprotocol> filter <the applied filter> but in this case i've used a function, and it seemes no function is allowed as filter option. Can this be done? Thanks, -- Arjan Filius mailto:iafilius@xs4all.nl

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