You can use port security to restrict any port down to as few as 1 MAC
address.
If you have port security on, and someone unplugs their PC (whose MAC
address has been "learned" as secure by the switch) and connects a hub, as
soon as ANY frame from another MAC is detected, the port will shut down.
Yep, I've used it. There is considerable flexibility in setup. Some
switches take up to several hundred MAC entries, learned or statically
assigned. You can also set the thing up to simply alert through SNMP traps,
and/or administratively shut down that port until you do a 'no shut', or
otherwi
2 matches
Mail list logo
