Two NICS with same IP and same client IP

[Raphael Jacquot]

Hervé wrote:
> Hello,
> 
> I have a weird setup I would like to make work: I have two identical
> subnets connected to one machine via two different NICs, like this:
> 
> Server             |         | Client 1
> eth0:192.168.100.1 |---------| 192.168.100.2
>                    |                              | Client 2
> eth1:192.168.100.1 |------------------------------| 192.168.100.2

having 2 interfaces on the same box with the same IP address

repeat after me :

WILL NOT WORK

> 
> These two machines only access an NFS share on the server, but I assume
> this is irrelevant: the problem is to route the packets back through the
> interface the request came from (I am not trying to access the boxes
> _from_ the server).
> 
> My first idea was to modify the source address as the request come in, and
> then route and put the original address back in the outgoing packet, but I
> haven't found a way to do that.
> 
> Anybody got any idea?
> 
> Thanks in advance,
> Hervé.
>