Can flannel set forceAddress parameters?

[tanberBro]

Expected Behavior

I want to add a forceAddress parameter to the parameter passed to bridge cni so that he can perform the following logic:

Current Behavior

My current configuration does not have forceAddress parameters. In some cases, the pod reported an error:

Possible Solution

Set forceAddress parameters in flannel config.

Context

The reason why the pod reports an error is:
This node was originally a node in cluster 1, but now it has become a node in cluster 2, causing the subnet to change.

Your Environment

• Flannel version: v0.20.2
• Backend used (e.g. vxlan or udp): vxlan
• Kubernetes version (if used): v1.24.10
• Operating System and version: centos7

[tanberBro]

@rbrtbnfgl

[rbrtbnfgl]

do you cleaned the node when it joined the second cluster?

[tanberBro]

flannel configuration and bridge not cleaned up,

Need a separate cleaning?

@rbrtbnfgl

[rbrtbnfgl]

yes Flannel is not cleaning older configuration like routes and bridge interface.