[Xen-users] Re: xen-3.0.4 networking problem after migration

[Weikuan Yu <weikuan.yu@xxxxxxxxx>]

I reply to my post earlier. It was a problem on the configuration file. 
It appears that, when not using dhcp, live migration with static mac 
address would cause a problem to IP in migrated domU.
--Weikuan

Weikuan Yu wrote:
> Hello,
>
> I am facing an networking problem for xen migration. I used to have it 
> working fine. But as I worked with several trees, I lost track on the 
> correct configuration I should have.
> The problem is as this, with xen-3.0.4 on CentOS-4.4. I can install xen, 
> start xend, and create domU, all fine.
> # xend start (on both nodes)
> # ssh node02 xend start
>
> Then create a domU on node01
> # xm create -c cvm.01
>
> At this point, I can ping this domU from many different nodes in the 
> subnet. Then, I migrate it to node02
> # xm migrate cvm.01 -l node02
>
> Right after the migration, I can no long ping the domU. This domU now 
> can only be ping'ed from the new host, node02. Interestingly, if I 
> migrate the same domU back to node01. Pinging works fine again from many 
> different nodes.
> Anybody has seen this before? I know xen-3.0.4 is old by now. But want 
> to avoid a new installation if possible.
> Can somebody offer a hint? Any help is appreciated.
>
> -- Weikuan

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