[et-mgmt-tools] Xen guest not receiving dhcp address

Caetano, Greg Greg.Caetano at hp.com
Tue Jul 24 19:32:59 UTC 2007


No change... Even if I also try the xenbr0 bridge as well

Other devices in the network are receiving ip addresses with no problem.

-----Original Message-----
From: et-mgmt-tools-bounces at redhat.com
[mailto:et-mgmt-tools-bounces at redhat.com] On Behalf Of Daniel P.
Sent: Tuesday, July 24, 2007 2:15 PM
To: Fedora/Linux Management Tools
Subject: Re: [et-mgmt-tools] Xen guest not receiving dhcp address

On Tue, Jul 24, 2007 at 03:05:37PM -0400, Caetano, Greg wrote:
> I'm working with a RHEL5 AP system (kernel 2.6.18-8.1.8.el5xen, xen
> 3.0.3-25.0.3.el5) and am not able to get the Xen guest to receive a 
> DHCP address from the Dom0 dhcpd server.
> I have defined the xen mac address in the dhcpd.conf file to assign it

> a fixed address.
> >From /var/log/messages on Dom0 I can see DHCPDISCOVER and DHCPOFFER
> entries with the appropriate mac and ip address being offered but the 
> Xen guest does not accept the DHCPoffer and fails to start the network

> on eth0

Try to turn off TCP checksum offload

  ethtool -K eth0 tx off

In the Dom0. If that doesn't work, try the bridge device in Dom0 too

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