Change Vagrant port forwarding on a running system

Question

I have a Vagrant system up and running and I want to apply a change to it which is as little as changing one of the forwarding rules.

From this page:

Answer 1

you can do

vagrant reload --no-provision

and it should run without chef, puppet, etc.

although it will still reboot the vm- feels like "But if you have an already running system..." is maybe a bit misleading.