From mboxrd@z Thu Jan 1 00:00:00 1970 From: carlopmart Subject: Bridges problem with kvm Date: Thu, 17 Sep 2009 09:37:27 +0200 Message-ID: <4AB1E737.1020903@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit To: kvm@vger.kernel.org Return-path: Received: from mail-ew0-f206.google.com ([209.85.219.206]:58988 "EHLO mail-ew0-f206.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758541AbZIQHh2 (ORCPT ); Thu, 17 Sep 2009 03:37:28 -0400 Received: by ewy2 with SMTP id 2so138502ewy.17 for ; Thu, 17 Sep 2009 00:37:30 -0700 (PDT) Sender: kvm-owner@vger.kernel.org List-ID: Hi all, I have a strange problem with my bridges configuration. I have a rhel5.4 host with kvm-83-105 package installed. This host has two bridged interfaces defined to use with kvm guests: DEVICE=prodif ONBOOT=yes TYPE=Bridge IPADDR=172.26.50.14 NETMASK=255.255.255.240 DELAY=0 STP=off and DEVICE=iscsif ONBOOT=yes TYPE=Bridge DELAY=0 STP=off I have installed two kvm guests (rhel5.4 also) with two virtual interfaces using virtio driver on one guest and e1000 driver on the other guest. My problem is: when I do a ping between these guests over prodif bridge all works as expected: ping responds. But if I do another ping over iscsif bridge doesn't works. The only difference between prodif bridge and iscsif bridge is that prodif has an IP address. More info: a) brctl show on host: bridge name bridge id STP enabled interfaces iscsif 8000.c201b3289830 no vnet3 vnet1 prodif 8000.226af089f4c3 no vnet2 vnet0 b) sysctl.conf on host: net.bridge.bridge-nf-call-ip6tables = 0 net.bridge.bridge-nf-call-iptables = 0 net.bridge.bridge-nf-call-arptables = 0 I don't have iptables rules defined and net.ipv4.ip_forward is disabled (but if I put sysctl -w net.ipv4.ip_forward=1, result is the same). What am I doing wrong?? Many thanks. -- CL Martinez carlopmart {at} gmail {d0t} com