Andrew,
> I did not
> think the source IP was relevant to the matching code in linux, since
> there are no source squelching socket options.
>
> There are no firewall rules active on this machine, and the packets are
> definitely visible at the interface (see tcpdump output in my email).
David:
Thank you for taking the time to respond.
The packets are arriving via a switched network composed of Cisco
devices in PIM dense mode. The packets pass through several switch
hops, but no routing hops that have been documented to me. I did not
think the source IP was relevant to the
I've run your test program and it receives fine for me.
I note that the source address is not on the same subnet as
(any of) the receiver's addresses. Are the packets being
routed? The default multicasting TTL is 1, though I don't
know if it'll be checked or dropped on the receiver, seeing
as we a
