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change ip address of windows 2003 sbs

We have got a customer who at the moment is running their 2003sbs on the network address 196.196.1.1, we are installing a new 2008 server that will not run on this ip range, what is the best pratice for changing this to the standard 192.168.1.1 range, that will cause the least amount of problems.
There is a router and 20 clients that recieve their informatin via DHCP from the 2003server.
Many thanks
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total123
Asked:
total123
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2 Solutions
 
Michael WorshamInfrastructure / Solutions ArchitectCommented:
If you are going to be utilizing VPN connectivity, I highly recommend looking at using the 10.1.0.x network layout rather than the 192.168 range as more homes and hotel locations use the latter, thus making it a real pain for remote VPN needs.

On the router, you will need to setup the new static IP address for the unit to act as the gateway. Then on the SBS server, you will need to re-tun the CEICW (Configure E-Mail and Internet Connection Wizard) to change it's static IP address and reconfigure any DNS changes as well.

Reference:
http://www.sbs-rocks.com/sbs2k3/sbs2k3-n2.htm
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gurutcCommented:
Hi,

OK, I'm going to put my input into this answer.  I'm sure my advice won't be complete.  But I'm hoping others will also chime in with additional stuff:

First, add the new IP you want to use into the network connections DNS Servers, configure a NS record for the new IP in DNS, and add the new IP as a supplemental IP address on the same adapter configuration, so the server thinks it has IPs for both subnets on the same connection.

Then go in and create a DHCP range for the subnet in DHCP server with the addtional IP address.  Don't activate this DHCP subnet yet.

Then restart the server.

Once it's up, in a command window run NETDIAG /FIX

This will update the Domain's resource records in DNS to also include the new IP for the Domain Controller.

Depending on what other services like Exchange service you'll have to add to the configuration for the new IP and subnet.

Once everything is configured with the addtional IP/subnet, you can switch the actual subnet to the new one.  Note that you still have everything still configured to also run on the old IP/subnet in case things go tragically wrong.

If everything is working ok, you can remove the configuration stuff pertaining to the old IP and subnet.

There may be an automated way to do all this.  This is just what first comes to mind about the way I'd do  it.

Also, before you start, MAKE A GOOD BACKUP OF THIS SERVER!!!
That way, if what I told you is a load of useless junk, you won't be hosed.

Good Luck,

- gurutc
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total123Author Commented:
thanks, we will not be implementing vpn access, just TS on another server.
Just CEICW then everything will magically work?
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gurutcCommented:
Well there you go, mwecomputers knew the right wizard, but my best advice still applies, make a backup before you start, dig?

- gurutc
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total123Author Commented:
Many thanks, think its fair to say that the wizard would be simpler, this will do everything that is necessary wont it? Or should i follow the step-by-step guide as posted by gurutc?
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gurutcCommented:
I'd think the wizard would do the job.  Since there's so many places you'd want to look.  I'm sure I missed something in the manual steps, but I'd be sure to get a good backup at the start.

- gurutc
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total123Author Commented:
will do. Many thanks for prompt reply.
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