Love it when random people tell me whether my use case is legitimate or not without apparently even knowing it exists!

Take mobile data connections, for example: Most people don't want to pay for metered (by the byte) inbound traffic they didn't ask for that also drains their battery, but do want to be able to establish P2P connections for lower latency VoIP etc.

This is a firewall that's definitionally "not theirs", but that still also serves their interests, yet usually doesn't offer any user-accessible management interface.

So may I please traverse this firewall now, or is my use case still illegitimate?

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hdgvhicv an hour ago | parent [-]

If you are trying to break through a firewall you don’t own then that’s not legitimate.

If you are buying firewall as a service then request a user interface or change your service provider.

	▲	lxgr 15 minutes ago \| parent [-]
		Are you even acknowledging my example? Where does it exist in your bimodal model of reality of "my firewall" and "somebody else's firewall"? What provider would you suggest somebody wanting to make VoIP calls on their smartphone switch to that allows port forwarding of the kind you describe? And which popular VoIP app would support statically forwarded ports like that?