Need to Re-ip the VIPs, Self-ips and mgmt IPs

Hi Praful,

How many such VIPs are there.

How many such self IP are there.

1. You cannot re-IP the VIPs, only method is to create new VIPs with same config with just destination IP to new subnet 10.x.x.x change and keep them in disabled state as they get sync from one box to another based on automatic sync or manual sync, so be careful at the time of creating and Once new VIPs in place, during activity enable the old VIPs and disable and later delete the old VIPs in 4.x.x.x that are not required. Make all these changes on Prod boxes obly after approved downtime window for safe transition from 4.x.x.x to 10.x.x.x
2. For gathering old VIPs config you can refer BIGIP.conf  file
3. I will use load sys config merge from-terminal command from CLi for pasting such VIPs into the F5 Box after getting new VIPs with change IPs prepared in notepad.
4. Self IP will not get copied/sync from one box to another, so you have to make the self IP on both boxes individually.
5. First add the new Self IP and Default routes(new default routes can be quicky created during the cutover activity in a approved change window for handling any unexpected outages) etc.
6. for that also i will use load sys config merge from-terminal
7. Now only you can delete old self IP, keep the delete commands ready in notepad, to quickly delete old self IP in 4.x.x.x during your activity. 
8. Here also I will prefer to collect such Self IP configuration from BIGIP_base.conf file.
9. Let me know for further detail help.

HTH

🙏

Best Regards,

F5 Design engineer.