Frank,

You seriously need to take care of that IP Address conflict.  Contact
whoever take care of the ADSL router and have them change the IP
Address.  One router between the second line will not resolve this
problem since the two different network is needed to make routing
possible.  You will need two routers and the one next to server will
need to NAT and probably PAT.  An ugly hack.

"Is such a setup possible with OpenBSD? How would you do it?"

You will not be able to get it to work properly with any OS.  The
problem is your duplicate IP Addresses.

RC

On 4/30/07, Frank Denis <[EMAIL PROTECTED]> wrote:
  Hello,

  I currently have a remote server with a trivial network setup:

[Server 10.0.0.1]-----[NAT router 10.0.0.30 - external IP 1]-----ADSL

  A second ADSL line and router have just been added. Unfortunately I have no
control over the routers. Both routers come with the same IP address, it's
why I have to setup something like this:

        10.0.0.1|-----[NAT router 10.0.0.30 - external IP 1]-----ADSL 1
[Server         |
        10.0.0.2|-----[NAT router 10.0.0.30 - external IP 2]-----ADSL 2

  Eacher router has a dedicated network interface on the server. I don't need
bandwidth aggregation nor load balancing, but the server should be able to
receive packets from external IP 1 and external IP 2.

  Is such a setup possible with OpenBSD? How would you do it?

  Thanks in advance for your help,

           -Frank.

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