Describe the bug

the 10.52.0.0/24 is pod's CIDR . so those ips about 10.52.x.x in the picture was pod‘s ip, but now the [source namespace] was record by NOT_FOUND_EXTERNAL.
and now found the situation only occurs on pods with a Completed state.
Environment (please complete the following information)
- Kindling agent version 0.8.1
- Kubernetes version 1.20.8