Fedora Box with TWO NIC's

[Julian Underwood]

Dear Fedora List,

This message isn't totally "On Topic" but my question refers to a Fedora 
box which will soon act as a server.  Plus I find the people on this list 
to be very knowledgable.  My quesiton may be consitered "basic networking" 
but maybe someone can help me.

I have a Fedora box with two working NIC's:

DSL, static IP:
(NIC 1)
ip:168.101.199.6
nm:255.255.255.248
gw:168.101.199.5
dns:168.101.1.3, 168.101.1.9

LAN, has a sonicwall router to Cable modem:
(NIC 2)
ip:192.168.0.7
nm:255.255.255.0
gw:192.168.0.1
dns:not needed

With this setup, /nothing/ works. Can't ping anything, can't browse from 
the box locally, nothing.  However if I remove the gateway on NIC 2 
(192.168.0.1), then I can at least browse through NIC 1 and it can be 
pinged.  However--the LAN interface is still useless, can't ping it.

The reverse works the same.  Remove the GW on NIC 1 (168.101.199.5) and 
place it on NIC 2 (192.168.0.1) then I can browse through NIC 2 on the 
Cable modem side, but then the DSL NIC becomes useless (can't ping).

So I am asking, what is the trick to make BOTH interfaces work and if the 
server needs to go out onto the net, it will by default browse out on the 
DSL side of things?  I would like to be able to manage the server and 
provide file services from the LAN side.

I would assume adding a route rule would be in order, but I'm unsure of 
what to put.  Can anyone help?  TIA,

Julian