Christopher Cain chris at
Wed Sep 7 21:21:24 UTC 2011

Domain Search is option 135.  Windows clients do not request this option.  The only method to add this option to Windows clients is via GPO.

Unix/Linux/Mac clients do request option 135, however.

Christopher Cain
chris at

On 2011-09-07, at 16:14 , dhcp-users-request at wrote:

> From: Nicholas F Miller <nicholas.miller at Colorado.EDU>
> Subject: domain-search?
> Date: 7 September, 2011 10:54:42EDT
> To: Users of ISC DHCP <dhcp-users at>
> Reply-To: Users of ISC DHCP <dhcp-users at>
> We have been testing domain-search and are having some issues. Do Windows machines support domain-search. From our testing it looks like only *nix machines support this option. When we use domain-search the Windows machines do not get any DNS suffix. Macs and *unix work fine. We have tried it globally and per subnet. The only thing that works for Windows machines it domain-name.
> _________________________________________________________
> Nicholas Miller, ITS, University of Colorado at Boulder

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