Strange renew unicast - help needed

Hunter Fuller hf0002 at uah.edu
Thu Jul 24 19:22:29 UTC 2014


Yes, it feels to me like your wireless bridge might be somehow munging the
packet. Try to sniff on one side of the wireless link and also on the
other, and compare the packets ...

-- 
Hunter Fuller
OIT

Sent from my phone.
On Jul 24, 2014 1:41 PM, "Peter Rathlev" <peter at rathlev.dk> wrote:

> 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
>
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