Re: [Xen-users] multiple vif's/bridges

[Nivedita Singhvi <niv@xxxxxxxxxx>]

andrew mathes wrote:

> hm, tcpdump from external -> eth3 of dom0 looks fine
>
> tcpdump from exteran -> eth1 of domU = no reply
>
> tcpdump from eth3 -> ext = fine
>
> tcpdump from eth3->domU ... the ping says it's ok, but tcpdump shows 
> nothing
> likewise domU->eth3 ... says it's pinging, but tcpdump shows nothing
>
> so is what's happening here is both sides pinging the bridge, but 
> nothing is going through?  i have this in dmesg:
> device vif1.0 entered promiscuous mode
> xen-br0: port 1(vif1.0) entering learning state
> xen-br0: topology change detected, propagating
> xen-br0: port 1(vif1.0) entering forwarding state
> device vif1.1 entered promiscuous mode
> xen-br1: port 2(vif1.1) entering learning state
> xen-br1: topology change detected, propagating
> xen-br1: port 2(vif1.1) entering forwarding state
>
> so that looks good ...
>
> i'm not supposed to make the domU gateway the same as the domO nic or 
> anything am i?
Sorry to come so late to this thread - but did you
share your routes (ip route show, or netstat -rn) output,
also your arp -a, ifconfig -a?

If you have two real interfaces on the same subnet,
you may need to set arp_filter on.

thanks,
Nivedita


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