AWS client vpn CIDR overlap runtime error

[tazmarine]

Hello,

I'm setting up a client vpn endpoint and receive a runtime error:

RuntimeError: Error: The client CIDR cannot overlap with the local CIDR of the VPC

VPC CIDR is 10.0.0.0/16
Endpoint CIDR is 10.254.0.0/22

I can get past this by setting the endpoint CIDR to 192.168.0.0/22, running cdk diff, and then setting the CIDR back to 10.254.0.0/22. cdk diff and cdk deploy work without any runtime errors after that.

Should I open an issue, or is there something I'm doing incorrectly?

Thank you,
Steve

[cgarvis]

Are you using Vpc.fromLookup? If so, sounds like you need to do a cdk synth first: #23077

[github-actions[bot]]

Hello! Reopening this discussion to make it searchable.