Valdis.Kletnieks@vt.edu wrote:
While NAT breaks the end to end connectivity, it can be restored by end systems by reversing translations by NAT, if proper information on the translations are obtained through some protocol such as UPnP.
You got a front end NAT. You got 3 boxes behind it that all want to listen for inbound connections on port 49734.
Let me know how that works out for you.
It's just like your box can't listen for inbound connections at address 131.112.32.132 (address of my box). However, if UPnP box is configured properly, your box behind it can listen for inbound connections on some ports at some public address. Issues on stability and advertisements of the port numbers are not very different from those of addresses, which may be assigned by DHCP. Masataka Ohta