How does NAT work, I know that it opens the ethernet packet and replaces the private (non routable) IP address with the router's IP address but how does it know which private IP address to send the ...

I'm looking for a little help with our Pix 501.<BR>First a little explaination.<BR><BR>Telekom has a router with an non- routable address on the interface, and then on our PIX outside interface we ...