I have a wireless router, and I share my wireless connection privately with my relatives. And I want to have control over the connection. Example, I want to close an established connection between one of the computers connected on my wireless and a suspicious host, without interrupting the connection with other trusted hosts.
What I'm trying to say is, as I read connection details in my router, I found out somebody is connecting from taiwan through port 32356. It's a bit weird so I want to get rid of that. Also, to prevent them from downloading large files (slows down my connection, since I own the router, I have right to do this correct?).
Is there a software or any way I can achieve this? Thanks!