Xen users - Mar 2007 - Problem with multiple IPs in DomU

I`m trying to setup interface aliases in domU (eth0:1-5) but when I do 
ifconfig eth0:1 1.2.3.X , DomU sends the following arp to the world:

16:17:33.585940 arp reply 1.2.3.Y is-at 00:16:3e:3d:35:28 (quote from tcpdump 
on eth0 on the DomU)

where 1.2.3.Y is the IP of the eth0.

So when I try to bring the 5 aliases at boot time I send 5 arp replies, all 
saying that my eth0 IP is at my hw address and nothing is said for the 5 
aliases so the world never finds about them.

Have anyone got a similar problem?
Dom0 and DomU kernels build from source (xen 3.0.4.1; kernel 2.6.16.33), OS 
Ubuntu 6.06.1

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Pavel Georgiev schrieb:
> I`m trying to setup interface aliases in domU (eth0:1-5) but when I do 
> ifconfig eth0:1 1.2.3.X , DomU sends the following arp to the world:
> 
> 16:17:33.585940 arp reply 1.2.3.Y is-at 00:16:3e:3d:35:28 (quote from
tcpdump
> on eth0 on the DomU)
> 
> where 1.2.3.Y is the IP of the eth0.
> 
> So when I try to bring the 5 aliases at boot time I send 5 arp replies, all
> saying that my eth0 IP is at my hw address and nothing is said for the 5 
> aliases so the world never finds about them.
> 
> Have anyone got a similar problem?
> Dom0 and DomU kernels build from source (xen 3.0.4.1; kernel 2.6.16.33), OS
> Ubuntu 6.06.1
Instead of using interface aliases, you should use the benefits of 
iproute2 and just put multiple IP adresses on one interface using 
"/sbin/ip".

Works like a charm here.

Regards
Dominik

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