[Techtalk] routing question

[Sarah Newman]

My local guru says you want to look at bridges and brctl in linux, 
assuming the laptop is running linux, and that the 2 interfaces on the 
laptop need to be the same class C network in this case and that both 
physical interfaces on the laptop need to be on the bridge.

Carla Schroder wrote:
> I want to use a wireless laptop as a temporary router for a wired PC. But my 
> poor old brain has forgotten how. Here is the setup:
> 
> Internet
> |
> local router/WAP: 192.168.1.10, 192.168.2.10, 12.34.56.78 (Internet)
> |
> |
> laptop 192.168.2.25 (wireless), 192.168.3.10 (wired)
> |
> wired PC 192.168.3.11
> 
> I have IP forwarding turned on in the laptop. The laptop and wired PC can ping 
> each other, and the PC can ping both laptop addresses. But I can't get past 
> that- can't ping the router or get Internet. The laptop has Internet and can 
> access the rest of the LAN. I have the default gateway on the wired PC set to 
> 192.168.3.10.
> 
> So what am I doing wrong? Or better, how do I do it right?
> 
> thanks!
> Carla