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Moving Servers with Public IPs to Private Network

I have 2 servers one Win2K SP4 and the other 2003 R2.  Each is a DC with AD for its own domain. Each is running DNS and has a public IP provided by the ISP.  The configuration looks like:

Router1 ------ xxx.xxx.xxx.193  (provided by ISP)
   |
   |
server-1 xxx.xxx.xxx.194 (Domain1.com www, e-mail, ftp)
server-2 xxx.xxx.xxx.200 (Domain2.com www, e-mail, ftp)
Router2 xxx.xxx.xxx.205 (NAT, DHCP)
   |
   |
Clients for Domains 1 & 2 (192.168.1.xxx)

I am not running a firewall and have just purchased a PIX 501. I want to replace Router2 with the PIX and relocate the servers to the internal side.  I am comfortable with the IP issues related but I am not as comfortable with any Active Directory problems that changing a DCs IP may have.  Is it safe to change the IP address of an Active Directory Domain Controller?

Thanks,
DRBibens
0
Daryl Bibens
Asked:
Daryl Bibens
1 Solution
 
jeff_trentCommented:
Changing the IP Address shouldn't be a big problem.  Changing its name and/or domain is another thing altogether.  You may have to flush the ARP Cache on the machines on your LAN so they aren't still looking for the servers by public address, but if you make the changes in DNS, this may not be an issue either.
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