How to change IP addresses on a DC running DNS?

[W C Hull]

Hello,

We have a situation that we need help with.

We have an office where we have to change the IP address on every machine to
a completely new IP address scheme. The office currently has two Windows
2000 domain controllers running Active Directory, DHCP and DNS on each
machine and the IP address on these two machines must change as well. Note
that there are other Windows 2000 domain controllers in other offices
located in other states who are set up with Active Directory, DHCP and DNS
that will stay "AS IS". All of these active directory domain controllers
"talk" to each other and the zones on these servers are all active directory
integrated.

I am concerned that we don't know all the steps needed to change the IP
addresses on the two domain controllers and get everything working correctly
in the office much less getting all the domain controllers in all offices
"talking" to each other after the IP address change.

If anyone can provide us with any information about how to correctly change
the IP addresses on these two domain controllers we would very much
appreciate the help.

Thanks,

 

[Kevin D. Goodknecht [MVP]]

In W C Hull <[email protected]> posted a
question
Then Kevin replied below:

Hello,

We have a situation that we need help with.

We have an office where we have to change the IP address on every
machine to a completely new IP address scheme. The office currently
has two Windows 2000 domain controllers running Active Directory,
DHCP and DNS on each machine and the IP address on these two machines
must change as well. Note that there are other Windows 2000 domain
controllers in other offices located in other states who are set up
with Active Directory, DHCP and DNS that will stay "AS IS". All of
these active directory domain controllers "talk" to each other and
the zones on these servers are all active directory integrated.

I am concerned that we don't know all the steps needed to change the
IP addresses on the two domain controllers and get everything working
correctly in the office much less getting all the domain controllers
in all offices "talking" to each other after the IP address change.

If anyone can provide us with any information about how to correctly
change the IP addresses on these two domain controllers we would very
much appreciate the help.

Thanks,

Add the new addresses to the DCs first, run netdiag /fix, then start
configuring the other machines to communicate with the DCs on these new
addresses. Remove the old addresses after all machines have been configured
with the new addresses. The other DCs should pick up on the new addresses,
but I'd check them with dcdiag before and after you remove the old
addresses.