Defining The Maximum Secure Address Count; Enabling Port Security; Disabling Port Security - Cisco WS-C2950-24 Configuration Manual

Chapter 7 Configuring the Switch Ports

Defining the Maximum Secure Address Count

Enabling Port Security

Command
Step 1
configure terminal
Step 2
interface interface
Step 3
port security max-mac-count 1 Secure the port and set the address table to one address.
Step 4 port security action shutdown
Step 5
end
Step 6 show port security

Disabling Port Security

Command
Step 1
configure terminal
Step 2 interface interface
Step 3 no port security
Step 4
end
Step 5
show port security
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A secure port can have from 1 to 132 associated secure addresses. Setting one
address in the MAC address table for the port ensures that the attached device has
the full bandwidth of the port.
Beginning in privileged EXEC mode, follow these steps to enable port security.
Purpose
Enter global configuration mode.
Enter interface configuration mode for the port you want to
secure.
Set the port to shutdown when a security violation occurs.
Return to privileged EXEC mode.
Verify the entry.
Beginning in privileged EXEC mode, follow these steps to disable port security.
Purpose
Enter global configuration mode.
Enter interface configuration mode for the port you want to
unsecure.
Disable port security.
Return to privileged EXEC mode.
Verify the entry.
Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide
Enabling Port Security
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