Ah - I have now sorted the interface problem. I run the code I listed earlier, but it sites at the command line saying "listening" without every dumping anything to screen.
/sbin/ip maddr now shows: eth1 link 01:00:5e:00:00:04 link 33:33:ff:7a:7e:4e link 01:00:5e:00:00:fb link 01:00:5e:00:00:01 link 33:33:00:00:00:01 inet 224.0.0.4 inet 224.0.0.251 inet 224.0.0.1 inet6 ff02::1:ff7a:7e4e inet6 ff02::1 And this is the same intterface on which I would expect to see the multicast udp packets. On Wed, Mar 10, 2010 at 1:28 PM, Itamar Turner-Trauring <ita...@itamarst.org> wrote: > On Wed, 2010-03-10 at 10:35 +0000, Ben Barker wrote: > >> I have been looking at the examples here: >> >> http://code.activestate.com/recipes/425975-simple-udp-multicast-client-server-using-twisted/ >> >> But I seem to have trouble getting them to receive anything at all. > > Did you do the joinGroup()? One of the examples omits it, which means it > won't receive multicast. > > > _______________________________________________ > Twisted-Python mailing list > Twisted-Python@twistedmatrix.com > http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python > _______________________________________________ Twisted-Python mailing list Twisted-Python@twistedmatrix.com http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python