Le 2000-02-11 21:16:20 +0100, Anton Emmerfors écrivait : > Since a few days something is sending out IGMP packages to 224.0.0.1 > and this is bad for several reasons. First, 224.0.0.1 is in the > private range of multicast addresses[1] (IIRC) so something must be > incorrectly configured. Second, I can't find the program responsible > for sending these packages. > > BTW: IGMP is Internet Group Management Protocol according to > /etc/protocols. > > > [1] Weird thing is, the 224.0.0.1 address resolves to > ALL-SYSTEMS.MCAST.NET according to nslookup. Is that really correct?
As far as I know, there is nothing wrong. Your kernel must have been compiled with multicast support, and it is trying to "subscribe" to the general multicast group. I believe the multicast RFC(s) mandates this. Win9x clients do this also. To get rid of these packets, just compile your kernel without the multicast option. Hope it helps. -- Jean-Philippe Guérard