I configured IP Masquerading for between my linux and win98 machine. Installed linux last night.

But I don't understand how when the client Win98 requests a web site, and the host (linux) recieves the page, how does it know to forward it on to 192.168.0.162 the client?

I have read the Linux IP Masquerade HOWTO
2.5. How does IP Masquerade Work?

But that only realy explains how it is set up, not how the host or gateway computer knows who the data recieved was for.

Anyone know an article that can explain this?