Very Computer

hello

We have a problem with dhcp relay agent.

In short, we have two cisco routers connected with a leased line.
cisco 4000 ios 11.2  router B
cisco 2500 ios 10.3(7)   router A  OR ios 11.2
There are dhcp clients on router A   and the service is on the ethernet on
router B

On the incomming ethernet of A, we have configured a ip helper address
pointed to the DHCP server.  What happens is, that in the relay packet send
over the leased line, that the gw address stays on 0.0.0.0 , it receives the
dhcp server but he doesn't know how to react on it.

Normally in the packet the gw address needs to be put in, but that doens't
happen,   Also the source address in the ip packet stays on 0.0.0.0

Is this a know bug?

Quote:>In short, we have two cisco routers connected with a leased line.
>cisco 4000 ios 11.2  router B
>cisco 2500 ios 10.3(7)   router A  OR ios 11.2

Mmm, both releases should support proper DHCP-relaying.

Quote:>There are dhcp clients on router A   and the service is on the ethernet on
>router B

>On the incomming ethernet of A, we have configured a ip helper address
>pointed to the DHCP server.  What happens is, that in the relay packet send
>over the leased line, that the gw address stays on 0.0.0.0 , it receives the
>dhcp server but he doesn't know how to react on it.

Are you using secondary addresses on the ethernet-interface of the
2500?

Quote:>Normally in the packet the gw address needs to be put in, but that doens't
>happen,   Also the source address in the ip packet stays on 0.0.0.0

Are you using 'no ip directed-broadcast' at the ethernet-interfcace of
the 2500?

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