Multiplayer server

Hello. Today my friend bought Gmod 13, and I wanted to play with him.
When I want to create a server I selected 2 players, I put a name , 999 to all limits etc. . When I entered, I pressed TAB and the server name still was “Garry’s Mod” and the limits was all on 0. I did all limits from console with sbox_ , but when my friend tried to join , he couldn’t. I’m from Romania and he is from Italy. I’m on network cable, so isn’t router to do a port forward. I tried also with Hamachi, Tunngle but still doesen’t works. I need some help.

Thank you.

Sorry for writing mistakes, I’m not expert at english.

Sorry for double post, but nobody know a tip to resolve this ? I really need.