How to block game connection only from the rounter

[kalo150]

Hello im using linksys rounter and i want to block connection to a game called league of legends but all other connection to work like browser or torrent

[JorgeM]

Does you router provide this firewall filtering capability? If so, if you know what the destination domain name is or IP addresses, you would create a rule to prevent internal hosts from accessing the destination IPs on the specific ports that this game requires.