Creating A Vlan Map - Cisco WS-C3560-48PS-S Software Configuration Manual

Configuring VLAN Maps
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Creating a VLAN Map

Each VLAN map consists of an ordered series of entries. Beginning in privileged EXEC mode, follow
these steps to create, add to, or delete a VLAN map entry:
Command
Step 1 configure terminal
Step 2
vlan access-map name [number]
Step 3
action {drop | forward}
Step 4
match {ip | mac} address {name |
number} [name | number]
Step 5
end
Step 6
show running-config
Step 7 copy running-config startup-config
Use the no vlan access-map name global configuration command to delete a map.
Use the no vlan access-map name number global configuration command to delete a single sequence
entry from within the map.
Use the no action access-map configuration command to enforce the default action, which is to forward.
Catalyst 3560 Switch Software Configuration Guide
27-30
If the VLAN map has at least one match clause for the type of packet (IP or MAC) and the packet
does not match any of these match clauses, the default is to drop the packet. If there is no match
clause for that type of packet in the VLAN map, the default is to forward the packet.
The system might take longer to boot if you have configured a very large number of ACLs.
Logging is not supported for VLAN maps.
If VLAN map configuration cannot be applied in hardware, all packets in that VLAN must be
bridged and routed by software.
When a switch has an IP access list or MAC access list applied to a Layer 2 interface, and you apply
a VLAN map to a VLAN that the port belongs to, the port ACL takes precedence over the VLAN
map.
See the "Using VLAN Maps in Your Network" section on page 27-33
For information about using both router ACLs and VLAN maps, see the
page 27-36.
Purpose
Enter global configuration mode.
Create a VLAN map, and give it a name and (optionally) a number. The
number is the sequence number of the entry within the map.
When you create VLAN maps with the same name, numbers are assigned
sequentially in increments of 10. When modifying or deleting maps, you
can enter the number of the map entry that you want to modify or delete.
Entering this command changes to access-map configuration mode.
(Optional) Set the action for the map entry. The default is to forward.
Match the packet (using either the IP or MAC address) against one or more
standard or extended access lists. Note that packets are only matched
against access lists of the correct protocol type. IP packets are matched
against standard or extended IP access lists. Non-IP packets are only
matched against named MAC extended access lists.
Return to global configuration mode.
Display the access list configuration.
(Optional) Save your entries in the configuration file.
Chapter 27 Configuring Network Security with ACLs
for configuration examples.
"Guidelines" section on
78-16156-01