[Xorp-users] Re: help establishing OSPF adjacencies

[Nick Feamster]

On Wed, Oct 19, 2005 at 11:01:18AM -0700, Pavlin Radoslavov wrote:
> > multicast group in the XORP debug:
> > 
> > [ 1068  +430 xrl_io.cc join_multicast_group ] Join Interface eth0 Vif
> > eth0 mcast 224.0.0.5
> > 
> > But I suspect that it is not succeeding for some reason.
> 
> What is the output of "netstat -g"? It will show the multicast
> groups joined on each interface.
> If the group is joined, then I suspect there are some firewall
> filters on the receiver side that prevent the multicast packets from
> reaching the receiver.

yep, it appears that way:

[mit_rcp@planetlab4 mit_rcp]$ netstat -g
IPv6/IPv4 Group Memberships
Interface       RefCnt Group
--------------- ------ ---------------------
netstat: no support for `AF INET (igmp)' on this system.