We use port-security on our switches to stop people connecting hubs to the switch ports. We allow 1 mac-address only on each port which means that if a user connects in a hub to use multiple machines the port will shutdown.
Have a read of port security on the 3750 and please come back with any further questions
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...