Effect of changing IP Address in DC

[Lee168]

We have 3 DC in our company, just wandering if there are anything I need to consider before changing the IP Address to different Subnet with different subnet mask (IP 10.0.0.1 w/ subnet 255.0.0.128 to 192.168.10.1 w/subnet 255.255.255.0).

I'm very concern about the DNS, AD, FSMO, DHCP, or anything else I might be missing. Any help and suggestion are very appreciated.

 

[MattWray]

The fact that the address will be in a different network from your other machines might be something to think about... Thanks,

Matt Wray

http://www.netcomtec.com

http://www.total-tec.com

 

[Lee168]

All of the DC's and Stations will be in the same network subnet. To clarify it; Initially all 3 DC's are in the subnet 10.0.0.X and need to be convert them to 192.168.10.X

 

[MattWray]

Well them, as long as you update your DHCP and DNS, I wouldn't think you should have a problem. As long as you are changing the clients too, I assume... Thanks,

Matt Wray

http://www.netcomtec.com

http://www.total-tec.com

 

[ashpp]

>We have 3 DC in our company, just wandering if there are >anything I need to consider before changing the IP Address >to different Subnet with different subnet mask

Yes. One important change is before doing any upgrading is to change the DHCP IP lease time give it a very low value ie. 10 minutes. This will make sure clients do not hang on to the older values and stop you having to walk around manually doing the old ipconfig /renew.

Reverse lookup zone will not be automatically updated after the subnet is changed - make sure you update this.

Make sure you reboot the servers after you have changed the IP address (or stop & restart netlogon).

Ash.