Pushing DHCP Server Options Changes

In an 2003 AD environment I have two Server 2003 DHCP servers with
configures SuperScopes for two VLANs. I need to change the DNS entries in
the Server Options and push that change out to the clients quickly.

So far when clients renew (one day renewal) they just renew and don't get
the new options. If an ipconfig /release and /renew is done on the client
they get all the new items. If the client is restarted it gets new items.

How can I force the clients to start using the new options without visiting
the clients or rebooting them?

I've tried restarting the service on the server, no joy. I tried deleting
the record on the server but the client just renews the IP and doesn't get
the new options.

Regards,

John

If a lease expires the client computer asks to extend the lease, and not get
a new one, that's why the new options aren't applied to the clients.

I can't see any other option but a reboot or a script that runs IPCONFIG
/release && IPCONFIG /renew

- Kiyoshi

"John Collins" wrote:

> In an 2003 AD environment I have two Server 2003 DHCP servers with
> configures SuperScopes for two VLANs. I need to change the DNS entries in
> the Server Options and push that change out to the clients quickly.
>
> So far when clients renew (one day renewal) they just renew and don't get
> the new options. If an ipconfig /release and /renew is done on the client
> they get all the new items. If the client is restarted it gets new items.
>
> How can I force the clients to start using the new options without visiting
> the clients or rebooting them?
>
> I've tried restarting the service on the server, no joy. I tried deleting
> the record on the server but the client just renews the IP and doesn't get
> the new options.
>
> Regards,
>
> John
>
>
>

Agree.

John, you may consider write a batch file which contains:

ipconfig /release
ipconfig /renew

Put this file to startup script and deploy this script to the clients.
However, restarting computer is needed, especially you have changed the DNS
configuration. You may send emails to all users to force them to have a
restart during non-business time, such as weekend or midnight to restart
machine and run this startup script.

For more details about the start script, please refer to the following
article:

To assign computer startup scripts
http://www.microsoft.com/windows2000...asp?url=/windo
ws2000/en/advanced/help/gptext_assigncomputerstartupscripts.htm

They need to reboot.

Get rid of the Superscopes. They are only for Multi-netting, VLANs are not
Multi-Nets.

--
Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com
-----------------------------------------------------
Understanding the ISA 2004 Access Rule Processing
http://www.isaserver.org/articles/IS...cessRules.html

Microsoft Internet Security & Acceleration Server: Guidance
http://www.microsoft.com/isaserver/t...dance/2004.asp
http://www.microsoft.com/isaserver/t...dance/2000.asp

Microsoft Internet Security & Acceleration Server: Partners
http://www.microsoft.com/isaserver/partners/default.asp
-----------------------------------------------------



"John Collins" <eecs-(E-Mail Removed)> wrote in message
news:%(E-Mail Removed)...
> In an 2003 AD environment I have two Server 2003 DHCP servers with
> configures SuperScopes for two VLANs. I need to change the DNS entries in
> the Server Options and push that change out to the clients quickly.
>
> So far when clients renew (one day renewal) they just renew and don't get
> the new options. If an ipconfig /release and /renew is done on the client
> they get all the new items. If the client is restarted it gets new items.
>
> How can I force the clients to start using the new options without
visiting
> the clients or rebooting them?
>
> I've tried restarting the service on the server, no joy. I tried deleting
> the record on the server but the client just renews the IP and doesn't get
> the new options.
>
> Regards,
>
> John
>
>