I've got a 2.0.36 kernel based router connected between a Cisco 2501 running OSPF and a LAN. The Cisco and BIRD converse, but only about the ethernet link between them, the other router ethernet is ignored. Suggestions? Is there a 'toggle' to flip someplace to get multicasting on multiple ethernets?? Jul 7 19:07:51 lennie bird: Guessed router ID 216.105.199.14 according to interface eth0 Jul 7 19:07:51 lennie bird: Guessed router ID 216.105.199.14 according to interface eth0 Jul 7 19:07:51 lennie bird: sk_open: IP_ADD_MEMBERSHIP: No such device Jul 7 19:07:51 lennie bird: ospf1: Huh? could not open mc socket on interface eth1? Jul 7 19:07:51 lennie bird: ospf1: Huh? could not open mc socket on interface eth1? Jul 7 19:07:51 lennie bird: ospf1: Ignoring this interface. Jul 7 19:07:51 lennie bird: ospf1: Ignoring this interface. lennie:/ }birdc BIRD 1.0.0 ready. bird> sh os ne ospf1: Router ID Pri State DTime Router IP Interface 216.105.199.13 1 2way/dr 00:38 216.105.199.13 eth0 bird> sh os ospf1: Number of areas: 1 Area: 0.0.0.0 (0) [BACKBONE] Stub: No RT scheduler tick: 7 Number of interfaces: 1 Number of LSAs in DB: 32 Number of neighbors: 1 Number of adjacent neighbors: 1 bird> show ospf interface "eth0" ospf1: Interface "eth0": Area: 0.0.0.0 (0) Type: broadcast State: backup Priority: 1 Cost: 10 Hello timer: 10 Wait timer: 40 Dead timer: 40 Retransmit timer: 5 Designed router (ID): 216.105.199.13 Designed router (IP): 216.105.199.13 Backup designed router (ID): 216.105.199.14 Backup designed router (IP): 216.105.199.14 bird> show ospf interface "eth1" bird> ------------------------------------------------------------------ protocol kernel { # persist; # Don't remove routes on bird shutdown scan time 61; # Scan kernel routing table every N seconds export all; # Default is export none } protocol device { scan time 62; # Scan interfaces every N seconds } protocol direct { interface "*"; } protocol static { route 0.0.0.0/0 via 216.105.199.13; } protocol ospf { area 0.0.0.0 { interface "*" { type broadcast; authentication none; }; }; export all; import none; }