Strange renew unicast - help needed

[Peter Rathlev]

On Thu, 2014-07-24 at 09:24 -0400, Nikolay P wrote:
>                                   When this station was connected with
> cable it operated fine. But cable gone bad and I had to temporarily
> connect the station with wireless Level 2 bridge. This is the only
> change I made. Anyway for the station nothing should really change -
> it has Ethernet connection and wireless stuff should be absolutely
> transparent to the station. It is connected to the same VLAN as it was
> before.
> 
> I had problem with DHCP snooping after I connected wireless bridge
> (requests from client would be blocked), so I disabled DHCP snooping
> entirely.

Have you tried seeing what the client actually sends with e.g. tcpdump
running at the time of renew? Just to make sure it's not some middlebox
that clears CIADDR or something like that. Something that might normally
insert option 82 or the like.

-- 
Peter