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What Do I Do If a VPN Connection Is Interrupted and a Message Indicating DPD Timeout Is Displayed?
Updated on 2023-06-16 GMT+08:00
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 Huawei devices) on the on-premises gateway device to keep the connection alive.
Parent topic: Connection or Ping Failure
Connection or Ping Failure FAQs
- Why Is a VPN Connection Always in Not Connected State After Its Configuration Is Complete?
- How Can I Prevent VPN Disconnections?
- How Do I Quickly Restore an Interrupted IPsec VPN Connection?
- What Will Happen If Traffic Exceeds the Bandwidth of a VPN Gateway?
- Is an IPsec VPN Connection Automatically Established?
- Why Cannot ECSs at the Two Ends of a Normal Cross-Region VPN Connection Ping Each Other?
- Why Cannot Subnets at the Two Ends of a Normal VPN Connection Access Each Other?
- What Do I Do If a VPN Connection Is Interrupted and a Message Indicating Data Flow Mismatch Is Displayed?
- What Do I Do If a VPN Connection Is Interrupted and a Message Indicating DPD Timeout Is Displayed?
- Why Is a VPN Connection in Not Connected State on the Management Console When It Is Already Available?
- Will I Be Notified If a VPN Connection Is Interrupted?
- What Do I Do If a VPN Connection Fails to Be Established?
- What Should I Do If I Cannot Access the ECSs on the Cloud from My On-premises Data Center or LAN After the VPN Connection Has Been Set Up?
- Why Is the State of a Successfully Created VPN Connection Displayed as Not Connected?
- Do Huawei Cloud VPNs Have the DPD Function Enabled?
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