How to assign Azure public static IP address to Azure application gateway alter upgrading Public Ip from basic to standart

Question

I have Azure virtual machine ,which network interface associated with Azure public static IP address ,which have basic SKU.
I need to associate that public IP address with application gateway,which has standart v2 tier, when I will create application gateway.

My steps:

1.I have dissociated IP from network interface
2. upgrade public static IP from basic to standard, because Standart v2 tier App gw doesn't support basic public IP

3. I want to sign public Ip to app gw ,as a Frontend IP address ,,,but it doesn't allow me to do that ,I'm getting error : This Public IP cannot be associated with this gateway <br/>
   Public IP is not associated with any resource and it has standard sku ,so what is the reason of the issue ,who can help???

Answer 1

Hi @Davit Grigoryan,

I have done a repro as you said in the comments and was able to associate the Public IP to the Application Gateway.

Like you mentioned, I'm using the Basic SKU and linking it to the VM.

After disassociating the IP and upgrading to the standard SKU.

I successfully associate the IP to application gateway.

Note: Could you please verify that the Public IP and Application Gateway are in the same region? If not, we can't associate the public IP to the Application Gateway.

I hope this helps.

Kindly let us know if the above helps or you need further assistance on this issue.

Answer 2

Hi @Davit Grigoryan ,
I have done a repro of your requirement and was able to achieve the same.

1. Were you able to proceed with the deployment and then it failed with the above-mentioned error ? or
2. while deploying itself you got this message like below.

if second is the case then you will wait unless it is completely detached with the previous resource.

If first is the case, then verify if the IP is still attached to some resource or you need to open a support case while providing operation id and correlation id which can be found from the activity logs of the Public ip or application gateway.
Support team will have access to your backend logs and would be helpful if the IP has any stale mapping in the backend or there are any unexpected error.

I hope this helps.