From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Joakim Tjernlund" Subject: RE: Multicast problem Date: Tue, 16 Oct 2007 22:07:35 +0200 Message-ID: <002701c81030$31908a90$04ac10ac@Jocke> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: "'Netdev'" To: "'David Stevens'" Return-path: Received: from mail.transmode.se ([83.241.175.147]:46139 "EHLO tmnt04.transmode.se" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S933827AbXJPUHj (ORCPT ); Tue, 16 Oct 2007 16:07:39 -0400 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org > -----Original Message----- > From: David Stevens [mailto:dlstevens@us.ibm.com] > Sent: den 16 oktober 2007 21:46 > To: Joakim Tjernlund > Cc: 'Netdev'; netdev-owner@vger.kernel.org > Subject: RE: Multicast problem > > > dev_mcast and igmp looks: > > root@Challenger:/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). > > > root@Challenger:/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