Help Center/ Virtual Private Network/ FAQs/ FAQs - S2C Enterprise Edition VPN/ Connection or Ping Failure/ What Do I Do If a VPN Connection Is Interrupted and a Message Indicating DPD Timeout Is Displayed?

Updated on 2024-07-23 GMT+08:00

View PDF

What Do I Do If a VPN Connection Is Interrupted and a Message Indicating DPD Timeout Is Displayed?

This happens because there is no data exchange over the VPN connection. When the SA lifetime ends, the VPN connection is deleted as the peer end does not respond to the dead peer detection (DPD).

Solution

Enable DPD on the on-premises gateway device, and verify that data flows from both ends can trigger connection establishment.
Deploy a ping shell script on the servers at both ends. Alternatively, configure a keepalive function (for example, NQA) on the on-premises gateway device to keep the connection alive.

Parent topic: Connection or Ping Failure

Feedback

Was this page helpful?

Helpful Not helpful

Provide feedback

Thank you very much for your feedback. We will continue working to improve the documentation.See the reply and handling status in My Cloud VOC.

The system is busy. Please try again later.

Which of the following issues have you encountered?

Content is inconsistent with the product UI

Unclear descriptions

Lack of examples or code

Incorrect steps

Can't find what I need

Lack of best practices

Feedback (optional)

0/500

Select at least one type of issue, and enter your comments or suggestions.

Enter a maximum of 500 characters.

Submit Cancel

For any further questions, feel free to contact us through the chatbot.