vii
Displaying 802.1x Configuration, Statistics, and Counters . . . . . . 5-21
Show Commands for Port-Access Authenticator . . . . . . . . . . . . . . . . 5-21
Show Commands for Port-Access Supplicant . . . . . . . . . . . . . . . . . . . 5-23
How 802.1x Authentication Affects VLAN Operation . . . . . . . . . . . 5-24
Static VLAN Requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24
Messages Related to 802.1x Operation . . . . . . . . . . . . . . . . . . . . . . . . 5-28
6 Configuring and Monitoring Port Security
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Blocking Unauthorized Traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Trunk Group Exclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Planning Port Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Port Security Command Options and Operation . . . . . . . . . . . . . . . . . 6-6
Retention of Static Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Displaying Current Port Security Settings . . . . . . . . . . . . . . . . . . . . . . . 6-9
Configuring Port Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
Web: Displaying and Configuring Port Security Features . . . . . . . 6-15
Reading Intrusion Alerts and Resetting Alert Flags . . . . . . . . . . . . 6-15
Notice of Security Violations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
How the Intrusion Log Operates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
Keeping the Intrusion Log Current by Resetting Alert Flags . . . . . . . 6-17
Menu: Checking for Intrusions, Listing Intrusion Alerts, and
Resetting Alert Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17
CLI: Checking for Intrusions, Listing Intrusion Alerts, and
Resetting Alert Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19
Using the Event Log To Find Intrusion Alerts . . . . . . . . . . . . . . . 6-21
Web: Checking for Intrusions, Listing Intrusion Alerts, and
Resetting Alert Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22
Operating Notes for Port Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22
!FishSecurity.book Page vii Thursday, October 10, 2002 9:19 PM
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