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Changing network subnet

Posted on 2016-08-03
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Last Modified: 2016-08-22
Hi Experts,

We are merging with another company and need to change our private subnets to theirs.

We have DHCP scopes created for the clients We will change server IP's to the new subnet. My concern is we have 2 VLAN's  on our switches that need to be changed along with the IP for management.

Is this the correct order and approach.

Routers are complete(not using them as gateways.

1) Change Switch management IP
2) Change VLAN IP's leave VLAN ID the same.
3) Change all servers to new IP and Gateway.
4) Activate new workstation scopes

thanks
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Question by:talltree
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Experienced Member earned 500 total points (awarded by participants)
ID: 41741632
1, 3, and 4: Yes.
2: I think so. There is no need to change the VLAN ID.
5: Change printers as well.
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Expert Comment

by:noci
ID: 41764251
There is slightly more to it.....
Don't forget other networked equipment. (esp. the ones without DHCP).

Network services (Printing, LDAP, DNS, log servers, ...) are also changing. So you will also need to update policies (Windows) or config files that address those services. Part of them (Like DNS) might be supplied in DHCP.
Check the configuration for use of hard IP addresses in stead of names.

Check DNS service records (Like MX, that require IP addresses and not names).
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Author Comment

by:talltree
ID: 41764303
Thank you John and Noci.
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