ospf netmask mismatch

[Martin Kraus]

Hi.  I have bird 1.2.2 running on debian lenny on two routers connected by a
nonbroadcast configuration.

first router has 212.71.191.77/30 on its interface, the second
212.71.191.78/30.  They can't negotiate ospf and I get this in the log:

bird: OSPF: Bad HELLO packet from 212.71.191.77 - netmask mismatch (255.255.255.128)

both routers have additional private prefixes from /25 on their interfaces. Is
there a problem with such a setup? it works fine on older birds in the rest of
the network.

thanks for any pointers
mk