Configuring and Monitoring Port Security
Port Security Command Options and Operation
Assigned/Authorized Addresses. : If you manually assign a MAC address
(using port-security <port-number> address-list <mac-addr>) and then execute
write memory, the assigned MAC address remains in memory until you do one
of the following:
■ Delete it by using no port-security < port-number > mac-address < mac-
addr >.
■ Download a configuration file that does not include the unwanted
MAC address assignment.
■ Reset the switch to its factory-default configuration.
Displaying Current Port Security Settings
The CLI uses the same command to provide two types of port security listings:
■ All ports on the switch with their Learn Mode and (alarm) Action
■ Only the specified ports with their Learn Mode, Address Limit, (alarm)
Action, and Authorized Addresses
Using the CLI To Display Port Security Settings.
Syntax:
show port-security
show port-security [e] <port number>
show port-security [ e ] [<port number>-<port number]. . .[,<port number>]
Without port parameters, show port-security displays Operating Control settings
for all ports on a switch. For example:
Figure 7-2. Example Port Security Listing (Ports A7 and A8 Show the Default
Setting)
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