[Babel-users] ahcpd and babel dying on huponomos

[Juliusz Chroboczek]

>> ahcpd and babel are dying with EINVAL on
>> setsockopt(IPV6_ADD_MEMBERSHIP), because they call this on
>> interfaces with no address (namely the vpn interfaces).

> That's the expected behaviour if the interfaces have no link-local
> address yet.  This shouldn't happen if they do have one.

It happened again.  Apparently, OpenVPN does something that causes the
link-local interfaces to disappear.  Restarting OpenVPN, ahcpd and
Babel (in this order) fixes it.

I don't have time to investigate further right now, but the problem is
definitely with OpenVPN, not with Babel.

                                        Juliusz