I have succesfully built a zerotier router with vpp handling the output to the internet through an lstack adapter. Needless to say it is fast.
I have tried changing ports in the local.conf
When we change it on a Apple MAC for testing before applying the change on our gateway which is linux based to understand the change process, after running
sudo launchctl unload /Library/LaunchDaemons/com.zerotier.one.plist and
sudo launchctl load /Library/LaunchDaemons/com.zerotier.one.plist
The ports dont change, we also observed under the sub folder One that the zerotier-one.port 9993 stays the same and reverts back to the default 9993 even if manually changed.
Any ideas on what step were missing to change the primary port on Mac and will this be a different behaviour on linux