> -----Original Message----- > From: Stephen Hemminger [mailto:[EMAIL PROTECTED] > Sent: den 16 oktober 2007 22:13 > > On Tue, 16 Oct 2007 22:07:35 +0200 > "Joakim Tjernlund" <[EMAIL PROTECTED]> wrote: > > > > -----Original Message----- > > > From: David Stevens [mailto:[EMAIL PROTECTED] > > > Sent: den 16 oktober 2007 21:46 > > > To: Joakim Tjernlund > > > Cc: 'Netdev'; [EMAIL PROTECTED] > > > Subject: RE: Multicast problem > > > > > > > dev_mcast and igmp looks: > > > > [EMAIL PROTECTED]:/proc/net# m dev_mcast > > > > 1 eth0 1 0 01005e000001 > > > > 2 eth1 1 0 01005e000001 > > > > > > These are the hardware multicast addresses for > > > 224.0.0.1 (so, correct). > > > > > > > [EMAIL PROTECTED]:/proc/net# m igmp > > > > Idx Device : Count Querier Group Users > > > Timer Reporter > > > > 1 eth0 : 1 V3 > > > > E0000001 1 0:00000000 0 > > > > 2 eth1 : 1 V2 > > > > E0000001 1 0:00000000 0 > > > > 4 lo : 0 V3 > > > > E0000001 1 0:00000000 0 > > > > > > ...and these are the group memberships for 224.0.0.1, so > > > also correct. This should receive and answer pings to 224.0.0.1 > > > as long as you don't have ICMP set to ignore broadcasts. > You should > > > not need to put the device in promiscuous mode for a ping of > > > 224.0.0.1 to work, so if you do, then you have a driver, device > > > or switch problem. > > > None of these interfaces have memberships in the > OSPF groups, > > > so if you had OSPF running when you did this, it didn't join. > > > > > > +-DLS > > > > > > > OK, so from all this and earlier mail I think that the > device driver don't > > receive multicast pkgs. Tomorrow I will try the real OSPF > test case with > > promisc mode enabled, se if that works. If so, it means there is > > a bug in the drivers(ucc_geth.c) set_multicast_list() function. > > > > Thank you for helping me to narrow it down. > > > > Jocke > > You can test multicast easily standalone with iperf: > http://dast.nlanr.net/Projects/Iperf/#multicast >
Thanks, will give it a try. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
