Connections using winsock

okok.. now ive downloaded and edited a prog a bit just to test out methods of connection.. anyway. i am using a basic server/client winsock program, each havin their own projects. i compiled both, sent the client one to my friend.

i ran the server app, chose a random port (3888) and waited. i told him my port and the real ip (using whatsmyip.com) but he couldnt connected. i tried running client app as well and couldnt connect. so i used my router IP and it connected. he tried my router IP and couldnt connect.

SO, the question is, using my real IP, when I am using a router, do i need to add anything else to my ip? for instance, if im the 3rd computer on the router, is it supposed to be something liek..
xx.xxx.xx.xxx:3 or
xx.xxx.xx.xxx.3 or
xx.xxx.xx.xxx3 or what?

or, since most router IPs seem to end in 100, is this comps IP blah.blah.blah.103?

You will probably need to forward that port you are wanting to use to the appropriate lan ip. I know I can do that here on the same computer , but external ip's will need to be forwarded.

umm I agree with the above, I had to do the same thing, Also may want to check your firewall settings or also as your m8 as that may also be blocking it, I know the XP fire wall blocks out most things if turn on.