Two machines communicate with one another using multicast - mDNS - when
they are on the same network segment. When they are on separate network
segments, however - though they can connect to one another across a
router - they can't communicate using multicast. I presume that this is
because the router isn't forwarding multicast traffic to other network
segments? The router is running Linux kernel version 2.4.23 and
iptables. How can I configure iptables to forward multicast traffic to
other network segments?
Thanks very much,
Jack
