Needs clarity on PIP upgradation and allocation.

Hi @Akash Jadhav

I understand that you want to upgrade your public IP from basic to standard, and afterward, you would like to know if it can be re-associated with your VM.

The IP stays the same and once upgraded you may Associate it back to the VM. After upgrade is complete you may click Associate button on the public IP address Overview blade to link it back to the VM's network interface. Please see screenshot below in regard to IP being retained:

Upgrade public IP address

https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/public-ip-upgrade?tabs=azureportal#upgrade-public-ip-address

Please navigate to the Basic Public IP address -- Settings -- Configuration, select Static, click Save.

After several seconds you should see notification in upper right corner saying that it saved public IP changes.

A message will show up at top saying that "This public IP address can't be updated because it is associated to the IP configuration..", that's normal.

Click on Overview blade on left, next click on Properties tab and verify it still says Static. Hit F5 to refresh the page, and double-check Properties tab again (still should say Static).

Now you are ready to click Dissociate, make note of your VM's network interface name, then click Yes to confirm. Network activity from public Internet to your VM will be interrupted at this point.

Once that's done click the Upgrade to Standard SKU link at top, check box and Yes. Typically only takes seconds to upgrade, look for notification in upper right.

When upgrade has finished, click Associate , select Resource type: Network interface and select your VM's network interface from the dropdown. This is where the note you made above with your VM's network interface name may be helpful.

Please click Accept Answer and upvote if the above was helpful.

Please let us know in the comments below if you have any further queries on the above so that we can address them.