HP 4100GL Manual do Utilizador descarregar pdf (Página 186)

Configuring and Monitoring Port Security

Basic Operation

Switch A

Port Security

Configured

Switch B

MAC Address

Authorized by

Switch A

PC 1

MAC Address Authorized

by Switch A

PC 2

MAC Address NOT

Authorized by Switch A

PC 3

MAC Address NOT

Authorized by Switch A

Switch C

MAC Address NOT

Authorized by

Switch A

Port Security

Configured

Switch B

MAC Address

Authorized by

Switch A

PC 1

MAC Address Authorized

by Switch A

Logical Topology for Access to Switch APhysical Topology

• PC1 can access Switch A.

• PCs 2 and 3 can access Switch B and Switch C, but are

blocked from accessing switch A by the port security

settings in switch A.

• Switch C is not authorized to access Switch A.

Figure 7-1. Example of How Port Security Controls Access

Note Broadcast and Multicast traffic is not “unauthorized” traffic, and can be read

by intruders connected to a port on which you have configured port security.

Trunk Group Exclusion

Port security does not operate on either a static or dynamic trunk group. If

you configure port security on one or more ports that are later added to a trunk

group, the switch will reset the port security parameters for those ports to the

factory-default configuration. (Ports configured for either Active or Passive

LACP, and which are not members of a trunk, can be configured for port

security.)

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