Accessing azure web apps through P2S VPN connection

Question

I have an Azure Web App which i want to connect to from a remote location. I use Azure VPN to connect to my Hub Network via Azure P2S connection using Azure VPN gateway.

Hub and the destination network has vnet peering enabled .

I have already whitelisted the P2S ip address pool on the app service access restrictions.

I am still getting 403 forbidden error.

Answer 1

@Muhammad Zeeshan

Thank you for reaching out.

I understand you are trying to access an Azure Web App from a remote location using an Azure VPN connection. You have already whitelisted the P2S IP address pool on the app service access restrictions, but they are still getting a 403 forbidden error.

You can try below mentioned steps and see if that helps in resolving the issue.

• You can check if any NSG in the virtual network is blocking this issue as this might give 403 forbidden error.
• If possible and to try and isolate the issue you can try and deploy a VM in your Hub Vnet and try to access the web-app and see if there is any issue. If you are still facing the issue, we can rule VPN Gateway out and visa-versa. You can use Azure Network Watcher IP flow verify to test the connectivity which will let you know if any NSG is blocking the connectivity.
• If connection from the VM above is successful, you can check if any firewall from the client machine is blocking the communication and doing a packet capture on your VPN Gateway can also help with the issue.

Hope this helps! Please let me know if you have any questions. Thank you!

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