[c-nsp] DHCP release and helper address

Tassos Chatzithomaoglou achatz at forthnet.gr
Wed Apr 16 10:32:14 EDT 2008


You may also need "no ip dhcp relay information check" if option 82 is added by another relay (L2) agent.

--
Tassos

Alfred Nagl wrote on 16/4/2008 5:11 μμ:
> On Wednesday 16 April 2008 15:47, MKS wrote:
>> Hi list
>>
>> I'm playing around with dhcp on cisco and it seams that c7600 (SRB)
>> isn't relaying DHCP release messages from clients to the DHCP server.
>> (i'm using ip helper address)
>> Is this the expected behavior?
> 
> It is. If you expect *option 82*, you need also
>      ip dhcp relay information trusted
> in the interface configuration.
> 
>             --alfred
> 
> 
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