Quote Originally Posted by BUZ View Post
Can you tell me what brand / model of router you're testing?
Have tested with "AVM FritzBox 7270". But have seen this feature also in model 7170, 7340 and 7390.

Quote Originally Posted by BUZ View Post
Do you know what this function is called?
It's called "The WLAN devices displayed may communicate with each other". See here.