From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ian Campbell <Ian.Campbell@citrix.com>
Subject: Re: PV Bridged DHCP (domU) Not working on Xen 4.5rc1
	arm64
Date: Thu, 22 Jan 2015 14:33:45 +0000
Message-ID: <1421937225.23842.25.camel@citrix.com>
References: <1421932343533.53626@caviumnetworks.com>
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To: "Jaggi, Manish" <Manish.Jaggi@caviumnetworks.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>, "xen-devel@lists.xen.org" <xen-devel@lists.xen.org>
List-Id: xen-devel@lists.xenproject.org

On Thu, 2015-01-22 at 13:12 +0000, Jaggi, Manish wrote:
> a) brctl addbr xenbr0; 
> b) brctl addif xenbr0 eth0

Please check
 http://wiki.xen.org/wiki/Network_Configuration_Examples_%28Xen_4.1%2B%29#Example_Debian-style_bridge_configuration_.28e.g._Debian.2C_Ubuntu.29
for the proper mechanism for achieving this under Debian/Ubuntu.

> Now the problem is domU is able to ping dom0 but not any other host.
> While dom0 is able to ping any host.

What does "brctl show" output while the guest is running?

What does your guest configuration look like?

Have you check for clues under /var/log? (esp the xen and libvirt
subdirs).

Ian.