Subject: FreeBSD/OSPF: ospf1: Socket error on wg0: Network is unreachable

[Adam McCarthy]

Sorry, wg-lon1 should read wg0. I mistyped in the email.

On 24 January 2021 17:20:58 GMT, adam at adammccarthy.co.uk wrote:
>Hello,
>
>I run OSPFv2 between multiple Linux hosts over wireguard tunnels
>between 
>them in a full mesh. This works fine in Ubuntu Linux 20.04, but if I
>try 
>to add a FreeBSD 12.2-RELEASE-p1 host, I receive the following error:
>
>bird[9767]: ospf1: Socket error on wg-lon1: Network is unreachable
>
>Could this be related to changes in FreeBSD 12, like FreeBSD 11 e.g., 
>https://github.com/BIRD/bird/pull/1?
>
>Thanks for any advice you can give me.
>
>Best,
>Adam
>
>BIRD and Wireguard are built from FreeBSD ports.
>
>$ bird --version
>BIRD version 2.0.7
>
>$ wg --version
>wireguard-tools v1.0.20200827 - https://git.zx2c4.com/wireguard-tools/
>
>$ uname -a
>FreeBSD <hostname> 12.2-RELEASE-p1 FreeBSD 12.2-RELEASE-p1 GENERIC  
>amd64
>
>wg0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> metric 0 mtu 1420
>     options=80000<LINKSTATE>
>     inet 10.1.5.5 --> 10.1.5.5 netmask 0xfffffff8
>     groups: tun
>     nd6 options=101<PERFORMNUD,NO_DAD>
>     Opened by PID 9459
>
>$ netstat -rn
>[...]
>10.1.5.1           wg-lon1            UHS     wg-lon1
>10.1.5.5           link#5             UH      wg-lon1
>[...]
>
>$ cat /etc/bird/bird.conf
>[...]
>protocol ospf {
>     ipv4{
>         import all;
>         export all;
>     };
>
>     graceful restart on;
>
>     area 0 {
>         interface "wg0" {
>             type nbma;
>             authentication none;
>             neighbors {
>                 10.1.5.1 eligible;
>             };
>         };
>     };
>}
>[...]
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