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warriorsTeah

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IP Address Change for entire network

My company want to change the whole entire network  range to  125.1.XXX.XXX to 192.168.XXX.XXX .now I am assign to this job ,I already plan to upgrade the firewall,domain controller ,mail server.may I know how to change the DNS server , active directory
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Paul MacDonald
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AD won't care and neither will DNS, strictly speaking.  You may have to update records in DNS about SOA, WINS and name servers, but that's only to speed things along.  

I'm guessing most of your clients are DHCP so they'll take care of themselves.  Regardless, you'll want to plan on doing this over a weekend, and nothing much else getting done until things settle down.
If you are changing your DC IP make sure you run ipconfig /flushdns, ipconfig /regsiterdns, and dcdiag /fix.
Don't forget about all your routers, printers, firewalls, and other network devices.  Anything that has a static IP will need to be manually updated.
Avatar of warriorsTeah
warriorsTeah

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So is mean I no need  touch any configuration in DNS  server  I just run a command do will fo fix every things?
With your DCs if you run those commands everything should update properly
A few questions to get things clear.

Do you have multiple sites?
Do you use vlans?
Who manages your routers/firewalls?
How many nodes (workstations/printers/etc/etc..) are we talking about?
If I understand correct your migrating from 125.1.xxx.xxx to 192.168.xxx.xxx, correct?

With these questions answered we can give you better answers.
DC and DNS are one thing, you need to make changes to all your ip owning devices (e.g. printers, etc)
What would help is use DNS as much as possible so you only need to make address changes only in one place.
Answer to the question above
1.No
2.No
3.Us
4.All is use fix IP we will change also
5.Yes

Please try me more about what i need to change in our domain controller ,DNS, DHCP .Thank you
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Kurt4949
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I know ,I need to make changer in firewall,how about routers?
Hello, can you be more specific as to which routers you are talking about?  Most routers and switches will have a static ip so yes you will have to log into them and manually change the IP.
You may need to make changes in your firewall/routers if they're filtering, NATing, or otherwise manipulating traffic based on IP address.