Adding Secure Addresses - Cisco NM-8B-U - HW ROUTERS L-M User Manual

16- and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series
Verifying Dynamic Addresses
Use the show mac-address-table dynamic command to verify configuration:
Step 1
Router# show mac-address-table dynamic

Adding Secure Addresses

The secure address table contains secure MAC addresses and their associated ports and VLANs. A
secure address is a manually entered unicast address that is forwarded to only one port per VLAN. If you
enter an address that is already assigned to another port, the switch reassigns the secure address to the
new port.
You can enter a secure port address even when the port does not yet belong to a VLAN. When the port
is later assigned to a VLAN, packets destined for that address are forwarded to the port.
To add a secure address, use the following commands beginning in privileged EXEC mode:
Command
Step 1
Router# configure terminal
Step 2
Router(config)# mac-address-table secure
address hw-addr interface interface-id vlan
vlan-id
Step 3
Router(config)# end
To remove a secure address, use the following commands beginning in privileged EXEC mode:
Command
Step 1
Router# configure terminal
Step 2
Router(config)# no mac-address-table secure
hw-addr vlan vlan-id
Step 3
Router(config)# end
You can remove all secure addresses by using the clear mac-address-table secure command in
privileged EXEC mode.
Verifying Secure Addresses
Use the show mac-address-table secure command to verify configuration:
Step 1
Router# show mac-address-table secure
Purpose
Enters global configuration mode.
Enters the MAC address, its associated port, and the
VLAN ID.
Returns to privileged EXEC mode.
Purpose
Enters global configuration mode.
Enters the secure MAC address, its associated port, and
the VLAN ID to be removed.
Returns to privileged EXEC mode.
Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ
Configuration Tasks
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