Internet access.

[tgray@xxxxxxxxxxxxxxxx]

This seems like a very basic task, and I have yet to locate a how-to 
that definitively addresses the issue.

I have a linux box in a heterogenous network, there is a proxy out 
on that network that I am able to use for internet access.  How do I 
configure this linux box to discern the difference between 
LAN/WAN traffic and Internet traffic?  Our IP setup whout make 
this rather simple in that anything from 10.x.x.x is LAN/WAN and 
everything else it internet.

Just a link to the appropriate How-to(s) along with the obligatory 
RTFM comments would be appreciated.  Thank you.

(I've been kludging along with Netscape's proxy settings, but I'm 
looking to get it a little more streamlined and be able to use more 
of the powerful apps available to a linux box on the internet.)
"If you don't think life is interesting,
you're not paying enough attention." me, 1987-ish.
--Tim Gray