Hi Kyle, Ah-hah, you nailed it right on the head. I unknowingly had Bonjour running (must be installed by default on Fedora Core 3), which started a process 'mDNSResponder'. I'm guessing that's the bugger that's fire off these multicast joins.
Thanks for the tip! -Adam On Tue, 7 Aug 2007 00:30:36 -0400, "Kyle Moffett" <[EMAIL PROTECTED]> said: > On Aug 06, 2007, at 19:37:47, Adam M wrote: > > Hi folks, > > > > For some reason, every time I create a virtual interface (using > > tun), the interface immediately generates an IGMPv3 Join packet for > > group 224.0.0.251, which (according to Google) is Multicast DNS. > > > > This packet is generated automatically and consistently. I'm > > wondering why this should be the case, and if it can be disabled. > > You don't happen to be running "avahi" or one of the other Zeroconf/ > Bonjour/Rendezvous/$P2P_BUZZWORD_OF_THE_WEEK local-network-discovery > daemons, do you? Most of those keep an eye out for new network > interfaces and automatically start pushing multicast packets down > them as soon as they appear, which is the most likely explanation for > what you are seeing; as opposed to a kernel issue. > > Cheers, > Kyle Moffett > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
