AD and changing IP address scheme

  • Thread starter Thread starter Ron Agte
  • Start date Start date
R

Ron Agte

We are a small site (150 PC's, 5 Servers) and looking to
change all of our computers from a public IP address
range (206.154) to a private IP address range (192.168).
How would AD react if we were to create the private IP
address and try to serve both IP ranges as we converted
PC's in different offices to the new IP scheme? We are
trying to not have to do a weekend change if possible,
but are unsure how AD will react to multiple IP ranges in
the same domain name. Any comments would be welcome.
 
I did the same thing. I brought up a new server with 2 nics and setup one
side for the orginal ip address and the other nic for the new ip set. Then
configured Internet connection shareing from the orginal ip set to the new
one. I tried NAT but could not make it work. All you have to do is in DNS
create a new Reverse lookup zone for the new ip set. The Forward lookup
will change when you change each ip on the computers. The only problem is
the server acting as a router is a PII 266 mhz.with a pcmcia nic and a usb
nic. we starting experiencing problems with applications. I figure it was
because my laptop was too slow to handle all the traffic. It is still
processing the traffic to our unix box which i have not changed the ip on
yet. Everything else is working fine.

HTH

Paul McGuire
 
You can break replication and authentication by changing the IP addresses of
DCs. You can do this but you must be sure to update the SRV and host
records of the DCs in DNS. If you do this then all should be fine. You
update the host record by running ipconfig /registerdns and you can update
the SRV records by restarting the netlogon service on the DCs. If you
change the IP addresses of the DNS servers you should make sure that the
clients and DCs are pointing to the new server addresses. You should also
make sure that you don't have any old DNS records in the DNS zone.


--
Tim Hines, MCSE, MCSA
Windows 2000 Directory Services

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