Neighbors inactivity

[Andrew Rikhlivsky]

I have a few NASes based on FreeBSD 7.2 and quagga 0.99.14, they all have same
configuration with little changes.

When I add to network a test server based on FreeBSD 8.0-STABLE
with quagga 0.99.15, other servers doesn't receive HELLO packets from him.

nas9# tcpdump -i vr0 proto ospf
13:24:04.591907 IP 193.62.62.14>  OSPF-ALL.MCAST.NET: OSPFv2,
Hello, length 44
13:24:09.594136 IP 193.62.62.14>  OSPF-ALL.MCAST.NET: OSPFv2,
Hello, length 44
13:24:14.596375 IP 193.62.62.14a>  OSPF-ALL.MCAST.NET: OSPFv2,
Hello, length 44
13:24:19.598678 IP 193.62.62.14>  OSPF-ALL.MCAST.NET: OSPFv2,
Hello, length 44
13:24:24.600867 IP 193.62.62.14>  OSPF-ALL.MCAST.NET: OSPFv2,
Hello, length 44
13:24:29.603050 IP 193.62.62.14>  OSPF-ALL.MCAST.NET: OSPFv2,
Hello, length 44
13:24:34.605322 IP 193.62.62.14>  OSPF-ALL.MCAST.NET: OSPFv2,
Hello, length 44
13:24:39.607564 IP 193.62.62.14>  OSPF-ALL.MCAST.NET: OSPFv2,
Hello, length 44
13:24:44.609799 IP 193.62.62.14>  OSPF-ALL.MCAST.NET: OSPFv2,
Hello, length 44


Counter of multicast packets on switch port constantly increasing.
What the reason of inaccessibility other servers over multicast?