Configuring Switchport Port Security

Configuring Switchport Port Security

show ip int brief
!shows the details about the ports on our switch

conf t
interface fa0/1
switchport mode access
!This command hardcodes the port to be access port and only hosts can connect to it.
switchport port-security
!enables port security on this port

switchport port-security maximum 1
!This is the default and means to accept only one mac address on this port.

switchport port-security mac-address 00:11:22:33:44:55
!accept only this mac address on this port
OR
switchport port-security mac-address sticky
!means that stick whatever mac address is connected with you.

switchport port-security violation Protect|Restrict|shudown
Protect: ignore traffic from the violating mac address and do not show the log messages.
Restrict: ignore the traffic and show me the log message on the screen
shutdown: This is the default and means if some one is violating the rule so shutdown the port automati
cally.


conf t
interface range fa0/1 -22
!This command takes you inside all the above mentioned 22 ports.

show port-security
!shows the port security on all the interfaces.

show port-security int fa0/7
!shows the port secuirty information about fa0/7

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setting DUPLEX and speed on your Cisco switch
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int fa0/1
duplex half|full|auto

!default is auto

int fa0/1
speed 10|100|auto
!default is auto

For initial configuration of Router, Switch or AP click
initial configuration of Router, Switch or AP