I'm trying to duplicate a Linux server configuration to a windows server 2008R2 box. Basicaly this linux server acts as a router, but it is doing its job with only 1 interface (1 NIC).

Here is the network configuration in place (I cannot change it) :

INTERNET <==> Router (local ip = 194.168.0.3) <==> linux Server (ip : 194.168.0.2).

The router is configured with a DMZ to 194.168.0.2, and only allow this IP to connect to internet (Cannot change this router configuration).

The linux server is configured with a default gateway to 194.168.0.3, with the option : "Act as router".

All other computer on the lan have this configuration (given by DHCP) :

IP range : 194.168.0.X MASK : 255.255.255.0 Default gateway : 194.168.0.2

And everything is working perfectly.

I'm trying to reproduce this way of routing with only one NIC from a windows server 2008R2, but it seems that you cannnot do it with only one NIC (all exemples I see are refering to 2 NIC with 2 different network).

Does someone have an idea how to achieved this in Windows server 2008R2 ?

Tx you for your help !

Fabian.