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We have the following setup with a customer:
Azure portal reports the connection is connected and the customer is able to initiate communication with our side. However, they do not receive any packets back.
I took a packet capture on the tunnel, and as you can see we receive a SYN which we answer with a SYN ACK, but this is never received at the customer.
Then we are stuck in retransmitting the SYN ACK since we never receive an ACK.
Does anyone have an idea where our packets are dropped?
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Just following up here to see if you were able take a look at my comment above. Thank you!
Thank you for reaching out.
It will help if you can perform the packet captures on your VPN Gateway as it will help us determine where the packets are getting dropped. You can follow the documentation here to implement the packet capture.
Please let us know if you have any questions. Thank you!