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Configure Basic Functions of Port Security

In the configuration tasks of the port security, you should first enable the port security so that the configuration of the other functions can take effect.

Configuration Condition

None

Enable Port Security Function

After enabling the port security and if not configuring any port security rule, the port cannot learn the MAC address.

Table 3-2 Configure the basic functions of the port security

Step

Command

Description

Enter global configuration mode

configure terminal

-

Enter the L2 Ethernet interface configuration mode

interface interface-name

Either

After entering the L2 Ethernet interface configuration mode, the subsequent configuration just takes effect on the current port. After entering the aggregation group configuration mode, the subsequent configuration just takes effect on the aggregation group.

Enter the aggregation group configuration mode

interface link-aggregation link-aggregation-id

Enable the port security function

port-security enable

Mandatory

By default, the port security function is not enabled.

note


  • The IP rule and MAX rule of the port security and 802.1x cannot be used on one port at the same time.
  • The IP rule and MAX rule of the port security and MAC address authentication cannot be used on one port at the same time.
  • The port security and secure channel authentication function cannot be used on one port at the same time.
  • The port security and DAI (Dynamic ARP Inspection) cannot be used on one port at the same time.