On Friday, February 01, 2013 1:23:26 am Tim Kientzle wrote: > >> Would still appreciate any suggestions for how to test these. > > > > You can write a simple app to listen for UDP packets and have it join a > > multicast group and have another machine on the same network write a packet > > to > > the multicast group. > > I tried this first, but the test program worked fine even > without ADDMULTI/DELMULTI support. Watching > tcpdump -e, it appears that IP4 multicast UDP uses > broadcast at the Ethernet layer.
Were you running tcpdump? You have to use tcpdump -p to avoid putting the chip into promiscuous mode if so (promiscious causes the NIC to receive all multicast regardless of the filters assuming that your driver supports it correctly). -- John Baldwin _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
