As part of a corporate project, I am responsible for changing the IP address range of remote sites. I will show you a theoretical scheme of the network and explain the details of the migration. My final question will be: should I think of everything and will the network function in an operational way?
This corresponds to the network of my site (in a simplified way). The current network IP address is in 169.x.x.x / 16, and my wish is to switch it to 172.x.x.x / 24 There is in my network, a manageable switch, dynamic IP equipment (computers) or fixed IP equipement (printer, PABX, File Server ...).
Here are some facts:
- The network is managed by Microsoft tools (AD, SCCM)
- No changes to be made to the DHCP, DNS servers and the data center(except the new DHCP range)
- Printers are managed by DNS name, no changes to make for FAX
I am going to share with you an "action-list" that I have written and I hope you will be able to tell me what is good or bad:
- Disable the old DHCP scope
- Manually change the IP of the file server, domain controller. Then printers, Access Point and other equipment in fixed IP
- Change the IP of the switch (from here, the LAN should be able to work)
- Change the IP of the LAN interface of the router.
- Change the IP range of the firewall ACLs, and SCCM Boundaries
After that, I think we have to wait a few minutes for the tables to update, and the network should work. Do I forget important things that can cause problem after change?
I am available to answer questions to the best of my knowledge.
I apologize for my low level of English, but I have an excuse, I'm French!