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Troubleshooting port security, Cannot set the port security mode, Symptom – H3C Technologies H3C S6300 Series Switches User Manual

Page 175: Analysis, Solution

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Supp Timeout 30 s, Server Timeout 100 s

Reauth Period 3600 s

Max attempts for sending an auth request 2

Max number of 802.1X users is 2048 per slot

Current number of online 802.1X users is 1

Ten-GigabitEthernet1/0/1 is link-up

802.1X protocol is enabled

Handshake is enabled

802.1X unicast-trigger is disabled

Periodic reauthentication is disabled

The port is an authenticator

Authentication mode is Auto

Port access control type is MAC-based

802.1X multicast-trigger is enabled

Mandatory authentication domain: Not configured

Max online users is 2048

EAPOL Packets: Tx 16331, Rx 102

Sent EAP Request/Identity Packets : 16316

EAP Request/Challenge Packets: 6

EAP Success Packets: 4, Fail Packets: 5

Received EAPOL Start Packets : 6

EAPOL LogOff Packets: 2

EAP Response/Identity Packets : 80

EAP Response/Challenge Packets: 6

Error Packets: 0

1. Authenticated user MAC address: 0002-0000-0011

Controlled Users: 1

Because NTK is enabled, frames with an unknown destination MAC address, multicast address, or
broadcast address are discarded.

Troubleshooting port security

Cannot set the port security mode

Symptom

Cannot set the port security mode for a port.

Analysis

For a port operating in a port security mode other than noRestrictions, you cannot change the port
security mode directly by using the port-security port-mode command.

Solution

1.

Set the port security mode to noRestrictions.

[Device-Ten-GigabitEthernet1/0/1] undo port-security port-mode

2.

Set a new port security mode for the port, for example, autoLearn.