Hybrid Outbound NAT; static ports; upnp

[dave]

Was hoping to get some clarification regarding a lazy config as I don’t fully understand the implications of it.

Currently for the game I’m using hybrid outbound NAT with two manual wan rules (one UDP, one TCP) specifying; required port ranges via alias; a specific host; static ports checked (os-upnp isn’t enabled).  This gets me an “open” NAT type in the game.

The bit I don’t understand is, say I just full lazy and went with one manual rule on the wan, lots of any’s, and static ports checked, then enabled upnp with default deny disabled, does this mean all connections from any hosts applications would then use static ports, or only connections triggered via upnp?

Correct if I'm wrong, but it seams even with upnp enabled when using automatic outbound NAT, port randomisation still occurs, which makes me wonder why even bother with upnp if you’re not using hybrid outbound and static ports?

Hope that made sense...