Troubleshooting Port Security; Cannot Set The Port Security Mode - H3C LS-3100-52P-OVS-H3 Operation Manual

Authentication Mode is Auto
Port Control Type is Mac-based
Guest VLAN: 0
Max number of on-line users is 256
EAPOL Packet: 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 User(s) amount to 1
In addition, as NTK is enabled, frames with unknown destination MAC addresses, multicast addresses,
and broadcast addresses should be discarded.

Troubleshooting Port Security

Cannot Set the Port Security Mode

Symptom
Cannot set the port security mode.
[Switch-GigabitEthernet1/0/1] port-security port-mode autolearn
Error:When we change port-mode, we should first change it to noRestrictions, then change
it to the other.
Analysis
For a port working in a port security mode other than noRestrictions, you cannot change the port
security mode by using the port-security port-mode command directly.
Solution
Set the port security mode to noRestrictions first.
[Switch-GigabitEthernet1/0/1] undo port-security port-mode
[Switch-GigabitEthernet1/0/1] port-security port-mode autolearn
Cannot Configure Secure MAC Addresses
Symptom
Cannot configure secure MAC addresses.
[Switch-GigabitEthernet1/0/1] port-security mac-address security 1-1-2 vlan 1
Error:Can not operate security MAC address for current port mode is not autoLearn!
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