Bird 2 OSPF Authentication Type unknown (256) issue

[Ondrej Zajicek]

On Sat, Aug 24, 2019 at 09:06:55PM +0800, James Swineson wrote:
> Hi,
> 
> I have a Linux server and a Cisco IOS XE device connected with GRE/IPSec and then can ping each other. Today I installed Bird 2.0.5 on the Linux server and enabled OSPFv2 on both of them. Although they receive HELLO packets from each other, they refuse to establish a connection. A packet capture shows Bird is sending packets with auth type = 256 which is not something I would expect everyday:
> 
> 05:38:06.129722 IP (tos 0xc0, ttl 1, id 48901, offset 0, flags [none], proto OSPF (89), length 64)
>     192.168.1.2 > ospf-all.mcast.net: OSPFv2, Hello, length 44
>         Router-ID 192.168.1.2, Backbone Area, Authentication Type: unknown (256)
> 
> As a test I changed authentication type from none to simple; this time Bird gave me 257:
> 
> 05:40:36.129411 IP (tos 0xc0, ttl 1, id 3669, offset 0, flags [none], proto OSPF (89), length 64)
>     192.168.1.2 > ospf-all.mcast.net: OSPFv2, Hello, length 44
>         Router-ID 192.168.1.2, Backbone Area, Authentication Type: unknown (257)
> 
> Is there something wrong with my config or there is a bug in Bird2? Is there any workaround I can use right now?

Hi

Do you have configured instance id on BIRD?

See this: http://trubka.network.cz/pipermail/bird-users/2019-March/013218.html

-- 
Elen sila lumenn' omentielvo

Ondrej 'Santiago' Zajicek (email: santiago at crfreenet.org)
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"To err is human -- to blame it on a computer is even more so."