Redirecting certain network traffic based on URL

[Techstyle]

I have a std LMCE setup (external - core/hybrid - internal) network.  what I want to do is redirect certain traffic from the internal and core/hybrid that is bound for the internet through a VPN and the rest of the traffic via the normal route.  What is the best way to do this?

[posde]

If really URL, I would use a proxy. If it is IP address, I would use route.

[Techstyle]

It would be URL.  Are the software components already there to do this or do I need to add something?  Can you direct me to the relevant config files or tools?

[posde]

and software proxy should be able to do that. Look at Squid, if you want the most known one.

[Techstyle]

for anyone following this there is a wiki page for Squid:

http://wiki.linuxmce.org/index.php/Squid

not sure if I need a VPN client or how I direct certain traffic over a VPN while the rest goes directly to the Internet, anyone have any ideas?