I'm trying to set up a gateway before my router, so it's between my modem and router. I've got it working with the external card, the one that's connected to the modem so I can acces the net from the linux gateway. The problem accures when I connect the other network card from the gateway to my routers WAN port. Both router and the second card in the gateway connected to the router have static ip's. But I can't ping the gateway from my router nor access the net. What have I done wrong?