How to Run DHCP Relay and Server on the same box.

[Simon Hobson]

GAURAV HALWASIA wrote:

>I have installed ISC DHCP on my linux box. Is it possible to make 
>make it act like as both DHCP Relay and Server at the same time on 
>the same box.
>
>I want the DHCPDISCOVER to first get processed by Relay and then 
>Relay should forward (after adding option 82) the same to DHCP 
>server residing on the same box.

The only way I can think of would be to install two extra network 
ports. One will connect to the client network, two will connect to a 
separate network (either use a crossover cable or a switch - but it 
MUST be separate from the client network). Not sure if you could do 
this with a bridging and virtual interfaces instead of real ports.

Bind the relay agent to the client network and one of the other 
ports, bind the server to the remaining port.
-- 
Simon Hobson

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