For example, if we would like to limit these MAC addresses as maximum 10, we will use he below command: Switch (config-if) switchport port-security maximum 10. In other words, when you want to manually configure a MAC address on a port, you use switchport port-security mac-address īut when you want the switch to automatically learn the first MAC seen on a port and remember that (even if there is no traffic seen from that MAC for a long time), then you use: switchport port-security mac-address stickyĪnd after the swich learns a MAC address, you will see that it has automatically added: switchport port-security mac-address sticky nnnn.nnnn. On Cisco switches, to determine the Maximum Number of allowed MAC addresses are can be set with the below command.
#CISCO MAC ADDRESS LEARNING PORT SECURITY SOFTWARE#
(source: Catalyst 4500 Series Switch Cisco IOS Software Configuration Guide, 12.2(20)EWA - emphasis is mine) Sticky learning was enabled, to sticky secure MAC addresses. MAC addresses, including those that were dynamically learned before You enter this command, the interface converts all the dynamic secure To enable sticky learning,Įnter the switchport port-security mac-address sticky command. Is there a way to do sticky mac address learning with port security in Junos Im hooking up a bunch of linux servers with bonded interfaces to an EX4200 and would prefer to use the sticky learning with a MAC address limit on each port set to 1 rather than typing in each one (if I was a contracter I might say different ). Sticky secure MAC addresses and to add them to the runningĬonfiguration by enabling sticky learning. If a secure MAC address is secured on a port, that MAC address is not allowed to enter on any other.
That's the MAC addresses of the vNICs of the parent partition (host) and every child partition (guest) on every external vSwitch Live-migration and failover clustering are out of the question.
You can configure an interface to convert the dynamic MAC addresses to You must account for every MAC address on this host. Manually configured, it is not recommended. If these addresses are saved in theĬonfiguration file, the interface does not need to dynamically relearn Learned or manually configured, stored in the address table, and added You can configure MAC addresses to be sticky. While you can manually configure a sticky address, it is not usually used that way (and in fact Cisco recommends against it):