push new scope settings from DHCP server to all reservations

Hi,

I use DHCP reservations on my network for all servers. This way I’m able to
update new scope settings relatively easy compared to manual entered static
settings in TCP/-IP configuration.
The only problem I’m facing is how to trigger the server to get new scope
settings.

What I do now:
• change the scope settings on the DHCP server
• add “ipconfig –release� and “ipconfig –renew� to my login script
• logon to every server

But I want a solution where I don’t have to logon to every server.

Conclusion:
Instead to start the trigger “ipconfig –renew� at the client side I would
like to push new scope settings from the DHCP server to all machines that use
a reservation.

Is this possible?
If yes: how?

Thanks in advance!
Yuri

Hello Yuri GMT+1,

You can use the netsh command to push some infos:
http://technet2.microsoft.com/window....mspx?mfr=true

http://support.microsoft.com/kb/242468

DHCP is not aible to push information, it is always the DHCP enabled machine
which will do a broadcast in the network to find a DHCP server. So the client
takes action for the address, the server is only answering.
Normally servers should have fixed ip's. Can not really understand why you
use that way, never heard about a situation, where the servers will change
so many settings so often.

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm

> Hi,
>
> I use DHCP reservations on my network for all servers. This way I'm
> able to
> update new scope settings relatively easy compared to manual entered
> static
> settings in TCP/-IP configuration.
> The only problem I'm facing is how to trigger the server to get new
> scope
> settings.
> What I do now:
> . change the scope settings on the DHCP server
> . add "ipconfig -release" and "ipconfig -renew" to my login script
> . logon to every server
> But I want a solution where I don't have to logon to every server.
>
> Conclusion:
> Instead to start the trigger "ipconfig -renew" at the client side I
> would
> like to push new scope settings from the DHCP server to all machines
> that use
> a reservation.
> Is this possible? If yes: how?
>
> Thanks in advance!
> Yuri

Hello Meinolf,

Thank you for your answer.

Here an explanation of my requirement (it’s a proactive solution):
Imagine. 100 servers in your network. All configured with a static address.
After some time the DNS server setting must be changed. Then you have to
enter manually on all the servers the new DNS server setting. With a
reservation is the scope centrally managed (one change for all servers). No
chance for type errors, and so on.

I know, as you explained, that the client send the broadcast. I was hoping
for an out-of-the-box solution that the server triggers the client to perform
a broadcast or something like that.

Thanks anyway!

Cheers,
Yuri

Hello Yuri,

Also with netsh command you can push only the DNS ip changes via script to
the servers. I understand that with some many servers it's a lot of reconfiguration.

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm

> Hello Meinolf,
>
> Thank you for your answer.
>
> Here an explanation of my requirement (it's a proactive solution):
> Imagine. 100 servers in your network. All configured with a static
> address.
> After some time the DNS server setting must be changed. Then you have
> to
> enter manually on all the servers the new DNS server setting. With a
> reservation is the scope centrally managed (one change for all
> servers). No
> chance for type errors, and so on.
> I know, as you explained, that the client send the broadcast. I was
> hoping for an out-of-the-box solution that the server triggers the
> client to perform a broadcast or something like that.
>
> Thanks anyway!
>
> Cheers,
> Yur

"Yuri NLD" <(E-Mail Removed)> wrote in message
news:3A2E7A08-D4E6-409E-ADE0-(E-Mail Removed)...
> Here an explanation of my requirement (it's a proactive solution):
> Imagine. 100 servers in your network. All configured with a static
> address.
> After some time the DNS server setting must be changed. Then you have to
> enter manually on all the servers the new DNS server setting. With a
> reservation is the scope centrally managed (one change for all servers).
> No
> chance for type errors, and so on.
>
> I know, as you explained, that the client send the broadcast. I was hoping
> for an out-of-the-box solution that the server triggers the client to
> perform
> a broadcast or something like that.

The problem is that it makes everything dependent on the DHCP server being
"alive and well" and the DHCP Server becomes the most important server on
the whole network. It never should be that way and wasn't intended for
that.

For DNS you can make sure that there is always a DNS Server at the same IP#.
Make sure that DNS will forward to others if it needs to. Besides that, DNS
Servers should not be changing all the time,...if they are then that itself
is a big problem that needs to be addressed so that they are not changing
all the time. So I disagree that "...after some time the DNS server setting
must be changed...". They should not be changed,..hardly ever. If one is
replaced give the new one the same IP#.

Besides all that,...now-a-days most DNS machines on a LAN are also Domain
Controllers,...and those should not be changing all the time.

--
Phillip Windell
www.wandtv.com

The views expressed, are my own and not those of my employer, or Microsoft,
or anyone else associated with me, including my cats.
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