> You'd mentioned earlier that your setup was this:
>
> xeth0 - 192.168.2.1
> xeth2 - 192.168.2.2
>
> That looks to me like two network interfaces on the same subnet, though 
> that's my guess since you don't show the prefix lengths. I'm guessing the 
> subnet on both is 192.168.2/24.

Correct. Netmask is /24.

>
> Unless things have changed since the last time I looked into this, for IPv4 
> Linux implements what's referred to as the "weak" address binding model where 
> IP addresses are considered to belong to the host not the interface. That 
> means your host may be transmitting an ARP response, but not out the 
> interface you expect, particularly if in fact you have the same subnet 
> assigned to more than one interface.
>
> You might want to tcpdump on all interfaces when you do this.

I actually did that (after some googling) but there's no ARP response
being transmitted out of either of the interfaces. As I mentioned
before, this problem happens even with regular ethernet interfaces and
not specifically with my custom hardware related ones, so looks like a
routing (mis)configuration issue.

>
> Also, you might want to include the output of the following in future posts:
>
> ip addr show
> ip route show
> ip neigh show

I'll now test with 2 "regular" ethernet interfaces on my test machine
(eth0,eth1) and send the o/p of these commands.

Thanks!

>
> Jeff Haran
>

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