SSH between computers on LAN

[Aart Koelewijn]

On Sat, 24 Jan 2009 06:10:22 -0700, Karl F. Larsen wrote:

> Nils Kassube wrote:
>> Karl F. Larsen wrote:
>>   
>>>     I did a traceroute from this computer looking for the laptop and
>>>     it
>>> failed. But a traceroute from the laptop works to this computer.
>>>     
>>>     
>> Are you using the correct IP address for the laptop? If you try to ping
>> the IP of the wireless port of the laptop while it is actually
>> connected by wire, you won't get a reply. Try the IP of the wired port
>> instead. Run the "ifconfig" command on the laptop to find out which IP
>> address it has on the wired port.
>>
>>
>> Nils
>>
>>
>     I was trying Traceroute to see if it might explain why a ping to the
> laptop fails. I do ifconfig on the laptop to get it's ip.
> 
>     Still do not understand how this setup fails. I have 2 routers. The
> second router gets Internet from the first. Right now the DSL-router is
> 192.168.0.x and the Belkin Router is 192.168.1.x wired and 192.168.2.x
> from the WiFi port. Any computer on any port will get fine two way
> Internet from the DSL. But it is one way from the DSL-router to the
> Belkin router. A computer on the Belkin can ping a computer on the
> DSL-router but not the other way. It's an odd problem. I expect the
> Belkin router is not really a router.
> 
> 
> Karl

I don't think a computer on the first router will know where to find a 
computer on the second router if you don't set a explicit route. It will 
try to find it through your default route, which will point to the 
internet and not to your second router. The Belkin will know how to find 
a computer on your first router because its default route will be set to 
the first router. It will have to be, otherwise it won't be able to find 
the internet.

An explicite route can f.i. be set by ifconfig.

Aart