- Bird-users - Mailing Lists

Upcoming master branch reset in BIRD repository
by Maria Jan Matejka 22 Jan '19

22 Jan '19

Dear users, we are announcing here that we are going to rename branches in BIRD repository. 1st step (already done): a new branch >> legacy << is now the main branch for 1.6.x development. 2nd step (to be done between Jan 22 and Jan 24): the >> master << branch will be reset to what is currently >> int-new << and will be the main branch for 2.x development 3rd step (to be done until end of January): the >> int-new << branch will be deleted Please update your local repositories. Thank you for your understanding. Maria BIRD developer

2 1

add "src" attribute to kernel route
by Volodymyr Litovka 22 Jan '19

22 Jan '19

Hi colleagues, in Linux it is possible to specify source IP address for all packets with undefined this field, like: root@n1:~# ip route 10.0.0.0/24 dev eth1 proto kernel scope link src 10.0.0.1 10.1.0.2 via 10.0.0.2 dev eth1 src 10.1.0.1 using the command root@n1:~# ip route add 10.1.0.2/32 src 10.1.0.1 nexthop via 10.0.0.2 dev eth1 (note "src" parameter) This configuration instructs kernel to assign specified source address for all outgoing packets which travel to specified destination, if source address in the packet is unspecified. This quite important in order to provide reliability for applications which can't specify source IP address. in general, for such apps Linux chooses IP address of outgoing interface and, when this interface gone, all sessions go away as well since they're binded to interface's address. If I will be able to assign Loopback address, I will always have sessions active regardless of physical interfaces' state. Whether it's possible to configure Bird (We're using 1.6 on Ubuntu 18) in same way - when installing routes into the kernel, add "src" parameter like in the example above? Thank you. -- Volodymyr Litovka "Vision without Execution is Hallucination." -- Thomas Edison

2 1

RE: Bird peer disabled via control socket is automatically getting enabled
by Mohandass, Roobesh 22 Jan '19

22 Jan '19

Resending this email again, as I am not subscribed to this mailing list bird-users(a)network.cz<mailto:bird-users@network.cz> From: Mohandass, Roobesh Sent: Thursday, January 17, 2019 12:36 PM To: 'bird(a)network.cz' <bird(a)network.cz> Subject: Bird peer disabled via control socket is automatically getting enabled Hi Team, We are using BIRD version 1.6.3 in ubuntu 18.04 LTS kernel 4.15.0-42-generic, use case below. I have disabled few bgp peer using 'birdc disable <peername>' and after an hour or so, I just seen the peers are enabled back automatically, but I have not run 'birdc enable <peername>'. So thinking, was there anything that is reloading the bird configure at specific interval automatically or enabling the disabled peer automatically ? I have not configured anything related to below ones to be sure, configure [soft] ["config file"] [timeout [num]] Side Note: we are aware of commenting the peers which we are thinking to disable and then reload the config to make it always in disabled state. But just would like to check, why when we disable the peer from bird control socket , we observe this behavior. Thanks for your attention on this message. -Roobesh G M

2 4

UHb (broadcast) routes get into OSPF database on OpenBSD 6.4
by Igor Podlesny 21 Jan '19

21 Jan '19

I have an instance of Bird 1.6.4 on a freshly installed OpenBSD 6.4. My study of its OSPF database shown (with birdc show ospf lsadb self) that there were LSAs for broadcast routes that are indicated as ones having "UHb" in netstat -rn output. I suspect they're added by "protocol direct", but didn't check it yet. Looks like a bug, doesn't it? -- End of message. Next message?

2 1

Bird handles OpenBSD route priority differently
by Igor Podlesny 21 Jan '19

21 Jan '19

(compared to native OSPF daemon.) Test lab: just two routers with OSPF on both: A and B. OpenBSD 6.4. Bird 1.6.4p1. Router A has two default routes installed: Routing tables Internet: Destination Gateway Flags Refs Use Mtu Prio Iface default 192.168.69.36 UGS 0 353 - 8 vio0 default 192.168.69.37 UGS 0 0 - 12 vio0 bird> show ospf state all area 0.0.0.0 router 192.168.69.34 distance 0 network 192.168.69.32/29 metric 10 external 0.0.0.0/0 metric2 10000 via 192.168.69.37 external 192.168.69.32/29 metric2 10000 Higher priority 12 is of a lesser significance, so kernel prefers default via .36. Trying OpenOSPFd it's seen that theirs OSPF also prefers default via .36 in its advertisements. -- End of message. Next message?

2 1

Does repeated config timeout work as single (first one) accumulated?
by Igor Podlesny 17 Jan '19

17 Jan '19

IOW, let's say we have config version 1. Then if config has been changed (become version 2) and temporarily applied with config timeout 10 and then before it's been rolled back (assuming control still isn't lost of course), entered config timeout 30 would it be effectively the same as if you'd have entered just "config timeout 40" in the first time? Or would the second "config timeout" commit version 2 instead and when timeout is reached would rollback from version 3 (which is equal by content to version 2) to version 2 instead of version 1? -- End of message. Next message?

2 3

Do filters support accessing properties of some interfaces?
by Igor Podlesny 16 Jan '19

16 Jan '19

-- Is it possible to get link status (up/down? anything else?) of an interface (specified by interface name or other reference way if there're any) for further use in routes' preferences/metrics calculations? Hi :) -- End of message. Next message?

2 3

bird-2.0.3 - centos 7 rpm
by Shahan Agha 16 Jan '19

16 Jan '19

Hi all, Do we have any updates if there is official Cent OS 7 rpm for bird-2.0.3 or bird-2.0.2 to be released any soon? There was a thread mentioning that packages for bird 2.0 are expected with next release. Thanks, Shahan

3 3

Bird Version Ubuntu
by marcelo henrique 11 Jan '19

11 Jan '19

Hi People, In this week, was released a new version the bird, version bird-2.0.3.tar.gz but i don't found version to ubuntu packages. Would be possible to release the version package to ubuntu ? Thanks a Lot, Marcelo Frota

3 3

Re: cannot export routes (AS_PATH problem ?)
by Ondrej Zajicek 08 Jan '19

08 Jan '19

On Mon, Jan 07, 2019 at 09:38:12AM +0100, Julien Sansonnens wrote: > Hi Ondrej, > > policy routing was exactly what I was looking for, thanks for your help > I managed to have it done using the "secondary" switch, it's working great. Hi 'secondary' switch could be used for that, but note that when used for BGP, it does not change forwarding table. It is useful for route servers, but less for policy routing and forwarding. If you are using route A, but propagating route B to your peer, then if you receive network traffic from the peer, it is still routed according to route A (unless you do some other tricks). To have proper forwarding with policy routing, you generally would need two kernel routing tables, appropriate policy routing rules, two BIRD routing tables connected with pipe (with appropriate filtering on the pipe) and two BIRD kernel protocols synchronizing BIRD tables with kernel tables. -- 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."

1 0