Hello I am planning to change IP range on Windows 2003. Theser are the details about our servers: We have 3 windows std 2003. one of the server we are running Exchange server 2003 std. Now i am planning to change the IP range. If i change in DHCP and DNS setting, it will work. Please suggest me the steps i have to follow.

Hi, I don't think your servers are taking the IP from the DHCP Server unless there's a Reservation. If there's a reservation, 1. Change the DHCP scope 2. Remove the seservation 3. Restart the server to get the new IP s (Stop all the services that are running in the servers. Ex.. Exchange Services) 4. Check if the servers are registered with the new IP s. and make reservation for those IP s again 5. Change the DNS Records with the new IP s If the servers are configured with Static IP s. then shut down the services, change the IP, Re configure the DNS Records and reboot the servers. Thamara.

you should refer this for changing the ip address on the Domain Controller http://technet.microsoft.com/en-us/library/cc758579%28WS.10%29.aspx Note: After changing the ip address of the Domain Controller you should also point the clients to correct dns server. Read the considerations to change the ip address of the exchange server http://www.zerohoursleep.com/2010/01/5-things-to-consider-when-changing-the-ip-of-an-exchange-server/http://www.virmansec.com/blogs/skhairuddin

It the IP of Exchage server were on public IP address, then you should change MX records on public DNS servers. If the IP of Exchange server are on private address, then you should change the firewall settings to reflect the change of "IP port mapping". External IP is the same as before the change and the same is true for MX records on public DNS servers.

Hello, if you are planning to change IP addresses of DCs then after change, make sure that: Each DC / DNS server points to its private IP address as primary DNS server and other internal DNS servers as secondary ones Each DC without DNS points to internal DNS servers as DNS servers Once done, run ipconfig /registerdns and restart netlogon on each DC. Please also delete old DNS records of DCs that will be left in your DNS zone. For Exchange server, make sure that it points to correct DNS servers after making needed changes. For DHCP, please make sure that your DNS option is well configured and that reservations are configured correctly. This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner 2010 / 2011 Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows 7, Configuring Microsoft Certified IT Professional: Enterprise Administrator Microsoft Certified IT Professional: Server Administrator Microsoft Certified Trainer

you should refer this for changing the ip address on the Domain Controller http://technet.microsoft.com/en-us/library/cc758579%28WS.10%29.aspx Note: After changing the ip address of the Domain Controller you should also point the clients to correct dns server. Read the considerations to change the ip address of the exchange server http://www.zerohoursleep.com/2010/01/5-things-to-consider-when-changing-the-ip-of-an-exchange-server/http://www.virmansec.com/blogs/skhairuddin

Hello, if you are planning to change IP addresses of DCs then after change, make sure that: Each DC / DNS server points to its private IP address as primary DNS server and other internal DNS servers as secondary ones Each DC without DNS points to internal DNS servers as DNS servers Once done, run ipconfig /registerdns and restart netlogon on each DC. Please also delete old DNS records of DCs that will be left in your DNS zone. For Exchange server, make sure that it points to correct DNS servers after making needed changes. For DHCP, please make sure that your DNS option is well configured and that reservations are configured correctly. This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner 2010 / 2011 Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows 7, Configuring Microsoft Certified IT Professional: Enterprise Administrator Microsoft Certified IT Professional: Server Administrator Microsoft Certified Trainer