Quote Originally Posted by capsulecorpjx
What IP address would i use to ping a PC connected behind a home router (with one public IP address shared among multiple PCs)?

Would it be:

<global IP address>:<port num>?

How would I find out the port num?

I'm confused at how servers can distinguish between the different computers that share a single public ip behind a router.
I just had a wild thought, you could set up a client/server application.

Client sends "Ping"
Server sends "Pong"
Client sends "Ping"
Server sends "Pong"
...