Re: BUG: Network: Duplicate MAC adress response in multihomed system : All Kernels

[James Courtier-Dutton <James@superbug.co.uk>]

Lehner franz wrote:
> Maybe it is a setting, i have searched everywhere, but this is really 
> mysterious
>
> take a linux, configure this kind
>
> eth0: 192.168.10.200 / 255.255.255.0
> eth1: 192.168.10.201 / 255.255.255.0
>
> Both Interfaces are "real ethernet cards" and are connected to same switch
>
> if you take now a 3'rd machine, and do a
>
> arping  -c 1 192.168.10.200
> > 60 bytes from 00:0c:29:bc:96:fe ( 192.168.10.200): index=0 
> > time=645.876 usec
> > 60 bytes from 00:0c:29:bc:96:f4 ( 192.168.10.200): index=1 time=1.472 
> > msec
>
> arping  -c 1 192.168.10.201
> > 60 bytes from 00:0c:29:bc:96:fe (192.168.10.201 ): index=0 
> > time=833.988 usec
> > 60 bytes from 00:0c:29:bc:96:f4 (192.168.10.201): index=1 time=1.211 msec

This behavior is correct. You should not set up a network in the way you 
have. Look at "bonding" for a better way to set up a system with 
multiple physical interfaces on the same subnetwork.

James


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