Cisco NM-8B-U - HW ROUTERS L-M User Manual page 73

16- and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series
Enabling Known MAC Address Traffic
To enable the MAC address secure option, use the following commands beginning in privileged EXEC
mode:
Command
Step 1
Router# configure terminal
Step 2
Router# mac-address-table secure mac-address
fastethernet slot/port [vlan vlan id]
Step 3
Router(config)# end
Verifying the MAC Address Secure Configuration
Use the show mac-address-table secure command to verify the configuration:
Step 1
Router# show mac-address-table secure
Secure Address Table:
Destination Address
-------------------
0003.0003.0003
Creating a Static or Dynamic Entry in the MAC Address Table
To create a static or dynamic entry in the mac address table, use the following commands beginning in
privileged EXEC mode:
Command
Step 1
Router# configure terminal
Step 2
Router# mac-address-table [dynamic | static]
mac-address fastethernet slot/port [vlan vlan id>]
Step 3
Router(config)# end
Note Only the port where the link is up will see the dynamic entry validated in the Ethernet switch network
module.
Purpose
Enters global configuration mode.
Secures the MAC address traffic on the port. Use the no
form of this command to restore the defaults.
Exits configuration mode.
Address Type VLAN Destination Port
------------ ---- --------------------
Secure 1 FastEthernet
Purpose
Enters global configuration mode.
Creates static or dynamic entry in the MAC address table.
Exits configuration mode.
Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ
2/8
Configuration Tasks
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