SNR S2989G-24TX-POE — настройка и устранение неполадок портовой безопасности в сетях [113/553]

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2-49

S2989G-24TX Operation Manual Chapter 2 Layer 2 services

Configuration

HOST A

HOST B

Figure 2-17 Typical topology chart for port security

When the interface enabled Port security function, configure the maximum number of

the secure MAC addresses allowed by a interface to be 10, the interface allows 10 users

to access the internet at most. If it exceeds the maximum number, the new user cannot

access the internet, so that it not only limit the user’s number but also access the internet

safely. If configuring the maximum number of the secure MAC addresses as 1, only HOST

A or HOST B is able to access the internet.

Configuration process:

#Configure the switch.

Switch(config)#interface Ethernet 1/0/1

Switch(config-if-ethernet1/0/1)#switchport port-security

Switch(config-if- ethernet1/0/1)#switchport port-security maximum 10

Switch(config-if- ethernet1/0/1)#exit

Switch(config)#

2.11.4

PORT SECURITY Troubleshooting

If problems occur when configuring PORT SECURITY, please check whether the

problem is caused by the following reasons:

 Check whether PORT SECURITY is enabled normally

 Check whether the valid maximum number of MAC addresses is configured

2.12

DDM

2.12.1

Introduction to DDM

Ethernet1/0/1

Internet

SWITCH