Changing DHCP IP Address

[dpmjr]

We are planning to change the IP adddress of our Network.
We have two domain controlers one running DHCP, DNS and
WINS. In addition I have an exchange 2000 server as a
memeber server. I have created a new scope in DHCP (not
active yet). I am wondering what to expect once I change
the IP address of my domain controllers then all my
memeber servers and finally activate the new scope and de-
activate the old one. I will be reducing the lease time
to a very short duration to ensure they all expire over
the weekend.

Thanks

Dante

 

[Rob Elder, MVP]

We are planning to change the IP adddress of our Network.
We have two domain controlers one running DHCP, DNS and
WINS. In addition I have an exchange 2000 server as a
memeber server. I have created a new scope in DHCP (not
active yet). I am wondering what to expect once I change
the IP address of my domain controllers then all my
memeber servers and finally activate the new scope and de-
activate the old one. I will be reducing the lease time
to a very short duration to ensure they all expire over
the weekend.

Thanks

Dante

It should be OK, but to be safe, I would bind the new IP address as a second
IP addresses on the NIC. Set the lease very short, then deactivate the
scope. When the IP addresses expire, they should pick one from the new
scope.

 

[Dante]

How will my DNS server respond to a new IP address?

 

[Shane Brasher]

Hello All,

Assuming that this is a W2K AD domain, make sure your DC's and DNS servers
are registered correctly.

1.)At the prompt type ipconfig /flushdns and wait for the services to
flush.
2.)ipconfig /registerdns wait for the services to regiser.
3.)net stop netlogon
4.)net start netlogon

Wait 15 minutes for AD to replicate.

Run a netdiag on all DC's and DNS servers to make sure that there is no
problem.

Link to netdiag KB article.
321708 HOW TO: Use the Network Diagnostics Tool (Netdiag.exe) in Windows
2000
http://support.microsoft.com/?id=321708


Shane Brasher
MCSE (2003,2000,NT),MCSA, A+
Microsoft Platforms Support
Windows NT/2000 Networking

 

[Guest]

thanks