Forum Discussion

Nimbostratus

Aug 29, 2018

Migrating old VIP to new sunbet

Hello Dears , i have setup of many VIPs which is running good and no issues , we plan for migrating all servers to new Subnet ( meaning the current setup is 192.168.11.0/24 and new one will be 192.16...

Cumulonimbus

Aug 29, 2018

Hi Ibrahim,

The best way to do that and in order to avoid all perturbation, I advise you to create the same vips with the new IP (In the new VLAN). It will allow you to have both vs in the same time.

VIP APP1: 192.168.11.100/24
VIP APP2: 192.168.11.101/24
VIP APP3: 192.168.11.102/24
VIP APP4: 192.168.11.103/24

create the new vip and don't remove older (you can call the new vip as you want, just modify the name in order to not have any error because of name duplicate...):

VIP APP1-new: 192.168.12.100/24
VIP APP2-new: 192.168.12.101/24
VIP APP3-new: 192.168.12.102/24
VIP APP4-new: 192.168.12.103/24

Once you create your VIP everything it's already ready for migration you just have to change DNS part. there will be no break or edge effect because of the DNS part or IP migration. because you have both operational services at the same time.

to duplicate the VS, open using cli "Vi /config/bigip.conf" then retrieve wanted VS on a notepad. Check that you don't forget to change any IP by searching "192.168.11".

Modify IP and VLAN then edit "Vi /config/bigip.conf" and add it.

then enter the following command in order to load conf: