My computer is connected to a router that supports UPnP, however it's not the last router on the way to the WAN. So, mapping there has no effect.I've got VPS and I've made a VPN network (computer <-> VPS). Now I've got two gateways, but GW using tunneled interface has lower metric, so everything goes through it.I want to check whether some certain software maps (creates forwarding) for any port using UPnP. I want to monitor any event regarding UPnP (router discovery, port mapping request, etc.)
How to monitor UPnP communication?
networking;port forwarding;upnp