> I don't have any handy code right now to send multicast traffic, but you > add your group properly, and I can see an igmp add request get sent, so > your gateway should be letting you see those frames.... > > About the only wierd thing that I see is the use of read. I'm not > certain, but I thought read only works on connection oriented sockets. > Since you're opening this socket as datagram socket (as all multicast > sockets are), you should probably switch the read call to be a > recv/recvfrom or recvmsg call. I'll take a look at that. I think I was wrong in initially saying that eth0 was the only interface that worked. After a little bit of fidding, I got eth1 to work... IF the default route was set to it. So now I suspect it has something to do with the routing tables, however the problem I'm seeing is for receiving multicast broadcasts, not sending. I thought the routing tables were relevant only in the case of outgoing multicast broadcasts. Unfortunately (for debugging the problem, fortunately for my sanity), I'm going on vacation for 2 weeks, so I'm not going to be able to get more detailed information for a while. So if I don't respond to email, it's not because I fixed the problem or am not interested anymore. It's because I'm too busy eating good sushi and deciphering kanji. Thanks. Wes -- http://www.woahnelly.net/~wes/ OpenPGP key = 0xA5CA6644 fingerprint = FDE5 21D8 9D8B 386F 128F DF52 3F52 D582 A5CA 6644 - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
