[TriLUG] Another WRT54G question

[Tanner Lovelace]

While we seem to be on the subject of the WRT54G I thought I'd
through out another question for the experts out there. :-)

What I would like to accomplish is this.  I would like to
completely separate my internal, external, and wireless
networks.  That is, the wireless network should have no
access to the internal network and vice-versa, unless
I setup something like a VPN.  Yet both of them should
have access to the external network (WAN or Internet).
How hard is it to do this with the WRT54G?  It would be
nice to be able to do this with one small simple box,
rather than setting up an openbsd or linux box to do it.
Extra points if the WRT54G could also do the VPN
functionality too. :-)

Cheers,
Tanner