[ALUG] A network conundrum

[Brett Parker]

On Wed, Aug 30, 2006 at 06:34:15PM +0100, Barry Samuels wrote:
> Briefly this is the mystery:
> 
> If I connect my laptop to my home network using an ethernet cable it  
> can 'see' the printer but if I connect the laptop using wireless it  
> cannot find the printer (neither can I ping it).
> 
> Setup details:
> 
> Computer A has two ethernet ports.
> Computer A connects to the router via an ethernet cable (eth0).
> Computer A also connects to the printer (eth1) - ethernet port and  
> printer are on a subnet.
> 
> Computer B also connects to the router. At first it could not find the  
> printer until I set up a static route on the router which cured that  
> problem.
> 
> If the laptop is connected to the router via cable (eth0) it can find  
> the printer but when connected via wireless to my wireless access point  
> (which is connected to the same router) it cannot see the printer  
> unless I add an appropriate line to the routing table on the laptop.
> 
> Can anyone explain, to satisfy my curiosity, why this should happen?

Have you tried adding the appropriate line to the wireless routers
routing table? is the wireless on a seperate subnet?

Cheers,
-- 
Brett Parker