[TriLUG] Dual Network Question

[Aaron Bockover]

I'm sure this general question has been brought up before, but I'm
having a heck of a time figuring this out...

I have a decent sized home-network, with an old PC serving as a router
(Smoothwall). The gateway/LAN address for it is 192.168.0.1. It is the
primary network, and serves the DSL connection. I've got a switch with
about 15 devices on it, including a D-Link AirPlus G wireless router.
The gateway/LAN address for it is 192.168.1.1.

Its WAN interface is configured to connect to the primary network, with
a static WAN IP address: 192.168.0.20. The MAC address for the D-Link is
entered for that IP address in my Smoothwall config. The DNS entries are
all correct on both routers, and when I connect to the D-Link with my
laptop, I can access the Internet through the primary router. All is
okay here.

I would *really* like to be able to access systems from the wireless LAN
on the primary network. My desktop is wired into the 192.168.0.1 LAN,
but my laptop connects wirelessly on 192.168.1.1. I would love to be
able to SSH/Remote X to my desktop from my laptop, and also access other
services/servers on my primary LAN.

I have tried forwarding ports from the 192.168.1.1 LAN to the WAN IP
(192.168.0.20), hoping the Smoothwall router would then broadcast those
forwarded requests into its LAN, but to no avail. 

What am I missing here?

Thanks,
Aaron Bockover