Help Center/ Virtual Private Network/ FAQs/ FAQs - S2C Classic VPN/ Connection or Ping Failure/ What Do I Do If a VPN Connection In Use Is Interrupted and a Message Is Displayed Indicating That Traffic from IP Addresses Not Whitelisted Generates?
Updated on 2024-07-23 GMT+08:00
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What Do I Do If a VPN Connection In Use Is Interrupted and a Message Is Displayed Indicating That Traffic from IP Addresses Not Whitelisted Generates?

This is usually caused by ACL configuration mismatch between the local and remote gateways.

  1. Verify that at the two ends of the VPN connection, the local and remote subnets are reversed and the ACL configurations are also reversed.
  2. Use the subnet/mask format when you configure interesting traffic in your on-premises data center. Do not use the address object mode since it may cause incompatibility issues.