I copied the wrong link. The upstream issue is documented here: https://gitlab.isc.org/isc-projects/kea/-/work_items/3792

Fair enough. I'm not super advanced in regex definitions, but I will see if I can avoid using a different regex rule for each prefix.

Looking at the current regex validation, I think there is a number of issues. The current regex for regular interface types doesn't properly limit interfaces to max 15 characters and the doted numeric validation is super confusing. Obviously the pod interface validation doesn't consider wildcards at all.

Minimal fix for the issues I described: https://github.com/vyos/vyos-1x/pull/4954

I think I've traced the issues. There are 3 different bugs:

I don't have any thoughts on how to fix this. The config templates don't seem to match the intent of the CLI, so perhaps I'm not understanding how the templates are used.