- Bird-users - Mailing Lists

Limitation on stubnet prefixes
by Andre Cunha 27 Jul '19

27 Jul '19

Hello, Is there a limit on the number of stubnet prefixes that we can configure? I have configured 50000 stubnets but my router receives only 1084 routes. protocol ospf v2 { area 0 { interface "virbr1"; include "/home/acunha/routes.txt"; }; } acunha@staging:~$ more /home/acunha/routes.txt stubnet 1.0.0.0/24; stubnet 1.0.1.0/24; stubnet 1.0.2.0/24; stubnet 1.0.3.0/24; stubnet 1.0.4.0/24; stubnet 1.0.5.0/24; stubnet 1.0.6.0/24; stubnet 1.0.7.0/24; stubnet 1.0.8.0/24; stubnet 1.0.9.0/24; stubnet 1.0.10.0/24; .... If I configure the routes as static and redistribute in OSPF, it works fine. I have tested with both 1.6 and 2.0 and the behavior is the same Thanks Andre

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OSPF MD5 Authentication Fails When Using Instance ID
by St. Hilaire, Joshua 25 Jul '19

25 Jul '19

OSPF MD5 authentication appears to fail with an unknown auth type 1026 when you specify an "instance ID" in BIRD, regardless of whether you specify the instance ID on the interface or not. Removing all occurrences of "instance ID" from bird.conf and re-committing the configuration appears to restore the correct auth type "cryptographic (2)". BIRD configuration and tcpdump info below. protocol ospf v2 IPv4_OSPF { instance id 4; ecmp yes limit 8; area 0 { interface "eth3" instance 4 { type pointopoint; authentication cryptographic; password "<text removed>" { algorithm keyed md5; }; }; }; } Jul 25 17:31:31.124 UTC: ospf[1007]: Rcv pkt from 192.168.1.1, GigabitEthernet0/0/0/14: Mismatch Authentication type. Input packet specified type 1026, we use type 2 Frame 16: 94 bytes on wire (752 bits), 94 bytes captured (752 bits) Ethernet II, Src: [removed], Dst: IPv4mcast_05 (01:00:5e:00:00:05) Internet Protocol Version 4, Src: 192.168.1.1, Dst: 224.0.0.5 Open Shortest Path First OSPF Header Version: 2 Message Type: Hello Packet (1) Packet Length: 44 Source OSPF Router: 192.168.1.1 Area ID: 0.0.0.0 Checksum: 0x0000 (None) Auth Type: Unknown (1026) Auth Unknown: 000001105d39f2a3 OSPF Hello Packet

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BIRD 2.0.4 (with RPKI support) in EPEL 7/8 (for RHEL/CentOS 7/8)
by Robert Scheck 24 Jul '19

24 Jul '19

Hello all, BIRD 2.0.4 (with RPKI support) is available in EPEL 7 and 8 (for RHEL/ CentOS 7 and 8). And there is also a package in EPEL 6, but without RPKI due to too old libssh version in RHEL/CentOS 6. - RHEL/CentOS 7: yum install --enablerepo=epel-testing bird2 - RHEL 8: https://koji.fedoraproject.org/koji/buildinfo?buildID=1319598 Please note that the packaging is slightly different related to upstream's RPM packages (e.g. BIRD drops root privileges and its configuration files and directories are not world readable; /run/bird/bird.ctl socket rather /var/run/bird.ctl), but it also covers more architectures (x86_64, aarch64, ppc64le; and EL8 even s390x). The BIRD package for EPEL 8 is likely to enter the regular repository once there is one, currently the best for RHEL 8 is to grab the build directly from the buildsystem (or the koji buildsystem repo). Regards, Robert

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Re: bfd does not work in a vrf
by Ondrej Zajicek 24 Jul '19

24 Jul '19

Hello Yes, this is currently not implemented properly, i forgot about it. Would require some substantial work. There are two possibilities: - Multiple BFD instances, each in VRF, with proper dispatch of BFD requests to instances based on VRF. - One BFD instance, with multiple listening sockets, each with appropriate VRF. That would require more work. -- 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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BIRD 2.0.4 and protocol RPKI in the config file
by Irene Lalioti 24 Jul '19

24 Jul '19

Hello dear Maria and bird users! I would like to ask you a question while I am experiencing an error all morning long :) I have installed the bird version 2.0.4 on my Linuxbox 4.14.13-x86_64-vmware. In my config file I am setting up the rpki protocol based on the documentation : https://bird.network.cz/?get_doc&v=20&f=bird-6.html#ss6.13 As protocol rpki { debug all; roa4 { table r4; }; roa6 { table r6; }; remote "rpki.lu-cix.lu" port 323; retry keep 5; refresh keep 30; expire 600; } when I run it I receive the syntax error unexpected symbol on the protocol line. -bash-4.2# bird -c /etc/bird.conf -d -f bird: /etc/bird.conf:208:10 syntax error, unexpected SYM I have played around with adding names, removing them, removing the { , then adding it again, but nothing changes. I have found another similar incident here : https://bird.network.cz/pipermail/bird-users/2019-March/013167.html Where Ondrej suggested to fix the ; but in my case I already have them. Is this a known issue? Apparently I am missing something. Thanks a lot in advance, and see you in Amsterdam Kind Regards Irène -- Irene Lalioti Network Engineer Fondation RESTENA 2, avenue de l'Université L-4365 Esch/Alzette Tel: +352 424409 1 Fax: +352 422473

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Re: NSSA translate TYPE7->TYPE5
by Ondrej Zajicek 24 Jul '19

24 Jul '19

> Hello, > > I have problem with selective no-translation TYPE7 LSA to TYPE5 LSA on ABR. > Scheme: https://ibb.co/mhbxwmy Hello Just tested that, works for me (with routes from your example). What is your output of 'show ospf state'? Don't you have any suspicious messages in logs? -- 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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Route Flap Dampening
by Matthias Waehlisch 24 Jul '19

24 Jul '19

Hi, any eta when support of route flap dampening will be available? Thanks matthias -- Matthias Waehlisch . Freie Universitaet Berlin, Computer Science .. http://www.cs.fu-berlin.de/~waehl

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lib/printf regression on raspberry
by Maximilian Eschenbacher 17 Jul '19

17 Jul '19

Hey everyone, the following patch creates a testcase on top of the master branch for bsprintf with %lR which fails on both my raspberrys (Raspbian Buster, armv6l and armv7l, gcc version 8.3.0). I noticed it by looking at $ birdc6 show babel entries which prints all router ids as 00:00:00:00:00:00:00:00 (except for the <self> prefixes). The issue exists in both tags v1.6.6 and v2.0.4. Best regards, Max --- diff --git a/lib/printf_test.c b/lib/printf_test.c index a2683d93..c1843f07 100644 --- a/lib/printf_test.c +++ b/lib/printf_test.c @@ -18,6 +18,14 @@ bt_assert_msg(memcmp(buf, res, nw) == 0, "fmt=\"%s\" writes \"%*s\", want \"%*s\"", fmt, (n < nw ? n : nw), buf, nw, res); \ } while (0) +static int +t_router_id(void) +{ + char buf[256]; + BSPRINTF(23, "01:02:03:04:05:06:07:08", buf, "%lR", 0x102030405060708); + return 1; +} + static int t_simple(void) { @@ -74,6 +82,7 @@ main(int argc, char *argv[]) bt_init(argc, argv); bt_test_suite(t_simple, "printf without varargs"); + bt_test_suite(t_router_id, "print router id"); return bt_exit_value(); }

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UPGRADE OS
by Rwakagabo Janvier 17 Jul '19

17 Jul '19

Dear All, I am running BIRD 1.4.0 as a route server on Ubuntu 14.04.2 LTS Server. I am planning OS upgrade to Ubuntu 16.04.4 LTS server Is there any thing I should consider before doing this upgrade? BIRD 1.4.0 will continue to work in Ubuntu 16.04.4 LTS ? Thanks, Regards, Janvier R.

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bfd does not work in a vrf
by Alexander Zubkov 16 Jul '19

16 Jul '19

Hello, I tried to run BFD in a VRF and looks like it is not working. The similar config without VRFs works ok. Config without a VRF: ipv4 table master4; protocol device {} protocol bfd {} protocol bgp b { local 192.168.1.3 as 65003; neighbor 192.168.1.2 as 65002; strict bind yes; bfd yes; ipv4 { table master4; import none; export none; }; } This runs well and I have both BGP established and BFD session up: bird> show protocols Name Proto Table State Since Info device1 Device --- up 11:29:24.831 bfd1 BFD --- up 11:29:24.831 b BGP --- up 11:29:28.638 Established bird> show bfd sessions bfd1: IP address Interface State Since Interval Timeout 192.168.1.2 eth0 Up 11:29:25.574 0.100 0.500 bird> But when it is run in a VRF with such config: ipv4 table master4; protocol device {} protocol bfd { vrf "blue"; } protocol bgp b { vrf "blue"; local 192.168.0.1 as 65001; neighbor 192.168.0.2 as 65002; strict bind yes; bfd yes; ipv4 { table master4; import none; export none; }; } Then BFD session does not go up: bird> show protocols Name Proto Table State Since Info device1 Device --- up 11:29:24.815 bfd1 BFD --- up 11:29:24.815 b BGP --- up 11:29:28.879 Established bird> show bfd sessions bfd1: IP address Interface State Since Interval Timeout 192.168.0.2 eth0 Down 11:29:24.815 1.000 0.000 bird> Adding or removing vrf "blue" to the BFD's config does not change anything. And I am not sure it has to be there because only one BFD instance is allowed. The peer's session is in the "Init" state at the same time: bird> show bfd sessions bfd1: IP address Interface State Since Interval Timeout 192.168.1.3 eth1 Up 11:32:20.861 0.100 0.500 192.168.0.1 eth0 Init 11:32:20.968 1.000 5.000 bird> In tcpdump I see that BFD control messages go in both directions, but looks like the peer in VRD do not receive them. I suppose that it does not binds the socket to listen it in the VRF. Also if I set this sysctl value, the session wents up: net.ipv4.udp_l3mdev_accept = 1

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