I use mikrotik webbox 3.10
My external ip is 217.147.33.119
My own ip is 192.168.8.46
And I want to “host” a game “server” so ppl can connect to me
port is 7777
so i run my program that runs the “server”
and I give my ip to my friends
it allways has to go with port so it is
217.147.33.119:7777
… but neither I can see my self, neither my friends can see it running
… what do I do ? 
You need something like this to map port on your external IP:
/ip filrewall nat add action=dst-nat chain=dstnat disabled=no dst-address= dst-port=7777 in-interface= protocol= to-addresses= to-ports=7777
Jorge
You don’t need to use “to-ports=xxxx” unless you want to forward it to a different port.
as far as i know that port is own by cafesuite internet cafe controller 