host-identifier and option 82

Simon Hobson dhcp1 at thehobsons.co.uk
Fri Jan 27 14:15:38 UTC 2012


=?utf-8?Q?Michal_Van=C4=8Do?= wrote:

>What I'm trying to figure out now is, whether it will work the way I 
>described in my previous post (i.e. client will try (unsuccessfully) 
>to renew its IP address from T1 to T2 and then, after T2 passes, 
>will issue a broadcast DHCPREQUEST with properly inserted opt 82 and 
>finally rebinds its IP address.

Yes, if the server doesn't respond to requests without Option 82, 
then the client will keep trying, and eventually resort to 
broadcasts. At that point, your relay agent can add Option 82 and the 
renewal will work.

-- 
Simon Hobson

Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
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