Re: routing problem

[Tarik Alj <aljtarik@ozias.inrs-telecom.uquebec.ca>]

> hi there,
> 
>    i have this LAN topology.
> 
> 
>        -----------------
>         |    |    |    | 
>        a   b   c   d
>                       |
> 		   e
> 
>      Node a is sending data to Node e. Packets from Node a will pass through
> Node d then to Node e.
>      is it possible to let the packets from Node a to go to Node b first so
> that Node b can do some processing. Node b then send the packets to Node d
> and finally to Node e.

Here's the thing: to the routing table it appears all nodes in the lan (a,b,c,d) 
are connected to the LanNode (a virtual node) by links that cost 1/2. So from a 
the next-hop to e is d. You could change the routing table by saying the 
next-hop to d from a must be b. 


> 
>      i tried using the add-route command to configure Node a to have a route
> to Node b. however, it does not seem to 
> work cos packets are still forwarded to Node d.

add-route really won't do anything in that case since it's just a null method in 
class LanNode.

>  
>      thanks.
> 
> rgds,
> kwang mien

Tarik