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SrinivasanRamkumar-0126 avatar image
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SrinivasanRamkumar-0126 asked SaiKishor-MSFT commented

Azure Site2Site VPN Issue.

Im establishing the connection between azure and on-prem and connection was successful, But I couldnt ping on-prem server from azure VM.

azure-vpn-gateway
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@SrinivasanRamkumar-0126

I understand that you are seeing issues with connectivity between Azure and on-prem via the S2S VPN connection although the VPN is connected.

To troubleshoot this, we have to look at the following:

  1. Source IP and Destination IP for the ping.

  2. Confirm if the security rules on-premise is not blocking this traffic.

  3. Confirm if a particular IP/port is being blocked or all traffic is being blocked between the source and destination.

  4. Traceroute output from Azure to on-premise and also from on-premise to Azure.

  5. If possible, a packet capture on the Gateway (which includes the encrypted traffic also) for this particular source/destination traffic. Here are more details for the same.

  6. A packet capture on the on-premise firewall/VPN device for this particular source/destination traffic.



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Once we have the information we can further look at it to understand what is going on. Thank you!

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@SrinivasanRamkumar-0126

Please let us know if you have any further questions and we will be glad to assist you further. Thank you!

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