For you who love the game dota, there are tips create this map dota.
1. Windows firewall must be off position, the firewall in the Windows control panel, the position is a firewall between the windows user accounts and wireless network setup wizard
2. You see the IP address of computer itself does no
3. You log dota game, and click the option, click game play and change the game with 4 port numbers. 4 digits are usually in the end with no ip address the computer.
Let clear, for you who have lived on companies to contact the ISP, will taught :)