Windows 2000/2003 IP Subnet change and concern over impact in AD e

Discussion in 'Windows Networking' started by =?Utf-8?B?Sm9uUA==?=, Jan 7, 2005.

  1. Dear all,

    We have a Windows 2000 and 2003 network with XP clients, network printers
    etc, and a fairly straightforward firewall and dsl router for Internet
    connectivity. Nothing much more than file and print going on, and the usual
    Active directory on the two DC's, one w2k and one w2k3 server. Current Ip
    subnet is 172.16.0.0/16

    My question is, does anyone know if there will be any problems changing the
    IP subnet to 172.16.1.0/24 ??

    The DHCP scopes, and static IP's would be changed accordingly, but wondered
    if Active Directory or the DNS etc might have a hissy fit with the change??

    Any thoughts muchg appreciated as I could do without them throwing a strop

    PS the reason for the change is to allow a site to site vpn to work
    properly, current 172.16 subnet is too broad and will prevent traffic from
    going over the link to the 172.16.2.0 network

    cheers
     
    =?Utf-8?B?Sm9uUA==?=, Jan 7, 2005
    #1
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  2. Hi JonP

    Well, I recently conducted an IP change similar to the one that you are
    planning and most things ran very smoothly. The only problem that I
    encountered was with printer port mapping. If you are using network printers
    then you may need to change the IP mapping of the printer ports as I have
    known them to go haywire.

    Also if you are using firewalls with exception rules, such as Symantec
    Client Firewall, use the central administration to allow the new subnet to
    operate before you change the Ip otherwise you may loose connectivity with
    the server and end up needing to do it manually.

    As far as DNS goes, it should automatically accept the new DNS information
    from the DHCP Service. It might be worth checking on the DNS properties to
    ensure that Dynamic updating is enabled.

    Other than that there should be no problems, just make sure u do it when no
    essential network activity is going on!

    Brendan
     
    =?Utf-8?B?QnJlbmRhbiBTYXVuZGVycw==?=, Jan 9, 2005
    #2
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