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RE: [Xen-users] DomU strange network behavior

To: "Andrew Deagman" <andrew@xxxxxxxxxx>, <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-users] DomU strange network behavior
From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
Date: Wed, 24 Dec 2008 16:08:44 +1100
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Thread-topic: [Xen-users] DomU strange network behavior
> 
> I  am experiencing strange network behavior from several DomU's. I can
ssh
> from DomU to any host on the local lan/vlan, I can ping those hosts.
> However when I go to resolve a hostname DNS fails. I have verified
that
> three other DomU's are exhibiting the same behavior. I have also
verified
> that Dom0 is functioning properly and can resolve hostnames and access
> hosts outside of the lan/vlans. Any ideas on what is going on? I have
> verified that networking looks to be working properly.  I am using a
> custom network script and Ethernet bonding. This has me particularly
> stumped as I do not see anything in the logs to indicate why name
> resolution would be failing. Here is the output of my configuration.
If
> more information is needed let me know.
> 

The easiest thing to try is to turn off checksum offload on the vifX.Y
interfaces using ethtool.

James

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