Applying A Vlan Map To A Vlan - Cisco WS-C3550-12G Software Configuration Manual

Configuring VLAN Maps
Switch(config)# mac access-list extended good-hosts
Switch(config-ext-macl)# permit host 000.0c00.0111 any
Switch(config-ext-macl)# permit host 000.0c00.0211 any
Switch(config-ext-nacl)# exit
Switch(config)# mac access-list extended good-protocols
Switch(config-ext-macl)# permit any any decnet-ip
Switch(config-ext-macl)# permit any any vines-ip
Switch(config-ext-nacl)# exit
Switch(config)# vlan access-map drop-mac-default 10
Switch(config-access-map)# match mac address good-hosts
Switch(config-access-map)# action forward
Switch(config-access-map)# exit
Switch(config)# vlan access-map drop-mac-default 20
Switch(config-access-map)# match mac address good-protocols
Switch(config-access-map)# action forward
Example 4
In this example, the VLAN map has a default action of drop for all packets (IP and non-IP). Used with
access lists tcp-match and good-hosts from Examples 2 and 3, the map will have the following results:
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•
•
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Switch(config)# vlan access-map drop-all-default 10
Switch(config-access-map)# match ip address tcp-match
Switch(config-access-map)# action forward
Switch(config-access-map)# exit
Switch(config)# vlan access-map drop-all-default 20
Switch(config-access-map)# match mac address good-hosts
Switch(config-access-map)# action forward

Applying a VLAN Map to a VLAN

Beginning in privileged EXEC mode, follow these steps to apply a VLAN map to one or more VLANs:
Command
Step 1 configure terminal
Step 2 vlan filter mapname vlan-list list
Step 3
show running-config
Step 4
copy running-config startup-config
To remove the VLAN map, use the no vlan filter mapname vlan-list list global configuration command.
This example shows how to apply VLAN map 1 to VLANs 20 through 22:
Switch(config)# vlan filter map 1 vlan-list 20-22
Catalyst 3550 Multilayer Switch Software Configuration Guide
19-32
Forward all TCP packets
Forward MAC packets from hosts 0000.0c00.0111 and 0000.0c00.0211
Drop all other IP packets
Drop all other MAC packets
Purpose
Enter global configuration mode.
Apply the VLAN map to one or more VLAN IDs.
The list can be a single VLAN ID (22), a consecutive list (10-22), or a string
of VLAN IDs (12, 22, 30). Spaces around the comma and hyphen are
optional.
Display the access list configuration.
(Optional) Save your entries in the configuration file.
Chapter 19 Configuring Network Security with ACLs
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