[wplug] USB internet sharing / SSH tunnel?

[Shane Liesegang]

I've got a PDA running Linux (an old Sharp Zaurus) connected to my PC 
(running Ubuntu at the moment). The USB networking is fine and dandy, 
and both machines can ping each other and SSH to each other. The problem 
is getting the PDA to see the internet at large. After a few disastrous 
attempts at bridging the USB connection to the Ethernet, I'm starting to 
wonder if there's a better way.

I know SSH can be used to tunnel connections by essentially tricking an 
app into thinking the local computer is the remote one and passing all 
the traffic down the SSH connection. Is it possible to make it more 
generic? Say, to tunnel port 80 to a remote host and have all traffic 
over port 80 be funneled through the SSH connection?

     - SJML