Force DHCP server to assign new IP to client

Glenn Satchell glenn.satchell at
Tue Oct 14 00:51:48 UTC 2014

All dhcp-clients remember their previous address and will request it on
each renewal. So you need to force the server to NAK these requests and go
back through the discover/offer/request/ack cycle.


On Tue, October 14, 2014 11:39 am, Chuck Anderson wrote:
> And for a more helpful response for how to REALLY do this, there is
> this old thread from 2012.  I suggest you read that entire thread, but
> this particular post is the most helpful one I've found:
> On Mon, Oct 13, 2014 at 08:29:16PM -0400, Chuck Anderson wrote:
>> That violates the letter and spirit of the DHCP RFCs, and it is not
>> really possible without hacks.  Why do you want to give your clients a
>> miserable experience?  If you are a service provider and were my
>> competitor, I would say please go ahead and do that so I could get
>> more business from your frustrated customers :-)
>> On Mon, Oct 13, 2014 at 04:08:32PM -0500, Jeffrey Zheng wrote:
>> > I am working on a project in which I would like to force DHCP server
>> to assign a new IP address to client whenever the client sends an IP
>> request, instead of keeping the current IP address. Is it possible? If
>> yes, can someone please tell me how to do it?
>> > Thank you very much,
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