[c-nsp] 3650G Port security and multicast.

[Jeff Kell]

Adrian Minta wrote:
> Xavier Beaudouin wrote:
>> Here is any magic way to filter / remove any multicast traffic from machines 
>> connected on Gi 0/1 (eg avoid machine that is on this port to send any 
>> multicast packets on network).
>>     
> !
> interface GigabitEthernet0/1
> switchport access vlan 3
> switchport mode access
> switchport nonegotiate
> flowcontrol receive on
> spanning-tree portfast
> switchport block multicast

That keeps unknown multicasts from being transmitted *to* the port, but 
does nothing about multicast traffic *from* the port (IIRC).

Jeff