Option 82 renew/rebind problem

Claus Holm Christensen iscdhcp at claushc.dk
Wed Jul 9 21:21:58 UTC 2008


Andre Schubert wrote:
> But i have seen some CPEs that send their packets directly to the dhcp-server asking to renew the lease.
> When this happens, the relay agent has no chance to add the agent information to the packets.
> I searched through the archives and found the following snipped:

Maybe you are looking for the stash-agent-options parameter?

 From dhcpd.conf manual (ver 3.0.6):

> If the stash-agent-options parameter is true for a given client, the server will record the relay agent information options sent during the
> client’s initial DHCPREQUEST message when the client was in the SELECTING state and behave as if those options are included in all subsequent
> DHCPREQUEST messages sent in the RENEWING state.  This works around a problem with relay agent information options, which is that they usually
> not appear in DHCPREQUEST messages sent by the client in the RENEWING state, because such messages are unicast directly to the server and not
> sent through a relay agent.

Hope this helps.


-- 
Claus Holm Christensen


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