Port forwardings can only be added, not deleted with "VBoxManage natnetwork"

[damiano++]

For "natnetwork" type network setups, port forwarding rules can be added with e.g.:

VBoxManage natnetwork modify --netname kommune1 --port-forward-4 "..."

but, there is no corresponding way to remove an existing rule.

For "nat" type networks, both options exist:

VBoxManage modifyvm Name --natpf1 "..."
VBoxManage modifyvm Name --natpf1 delete "..."

I would like to see an option added to VBoxManage natnetwork modify that allows the deletion of rules by their name.

In the meantime, as a workaround, the documentation should suggest that rules can be manually removed from the configuration file ~/Library/VirtualBox/VirtualBox.xml (on macOS, not sure about the path on other platforms).

[Valery Ushakov]

It's the manual that needs fixing, as the natnet accepts the same pattern of

VBoxManage natnetwork modify --netname Net --port-forward-4 delete RuleName

to delete rules.