"deny duplicates;" not working?

[Paul B. Henson]

On 1/8/2013 11:02 PM, sthaug at nethelp.no wrote:

> What you really want is the long asked for ability to prefer MAC address
> (only) and ignore the UID. This is unfortunately not possible with the
> current ISC DHCP.
>
> I believe that if you look back in the archives you may find a patch
> which implements this - but for a previous version of ISC DHCP. Current
> status of this patch is unknown.

We have an implementation of this applicable to current release 
versions, I'm pretty sure it was submitted to ISC but I don't think we 
ever heard back on it. Our use case was computing labs that dual booted 
windows/linux, where windows used a UID and didn't like to release the 
address. Without this feature, we would have needed to allocate twice as 
many IP addresses to each lab. I don't think it's currently posted 
anywhere, but if anyone's interested we could put it up or send it direct.