Cisco Systems EA6500 Manual De Usuario

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Catalyst 6500 Series Switch Cisco IOS Software Configuration Guide—Release 12.1 E
78-14099-04
Chapter 23      Configuring Network Security
Configuring MAC Address-Based Traffic Blocking
Configuring MAC Address-Based Traffic Blocking
With 12.1(13)E and later releases, to block all traffic to or from a MAC address in a specified VLAN, 
perform this task:
This example shows how to block all traffic to or from MAC address 0050.3e8d.6400 in VLAN 12:
Router# configure terminal 
Router(config)# mac-address-table static 0050.3e8d.6400 vlan 12 drop 
Configuring VLAN ACLs
Note
Releases 12.1(11b)E or later supports VLAN ACLs (VACLs).
The following sections describe VACLs:
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Understanding VACLs
These sections describe VACLs:
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VACL Overview
VACLs can provide access control for all packets that are bridged within a VLAN or that are routed into 
or out of a VLAN or, with releases 12.1(13)E or later, a WAN interface for VACL capture. Unlike regular 
Cisco IOS standard or extended ACLs that are configured on router interfaces only and are applied on routed 
packets only, VACLs apply to all packets and can be applied to any VLAN or WAN interface. VACLS are 
processed in hardware. VACLs use Cisco IOS ACLs. VACLs ignore any Cisco IOS ACL fields that are not 
supported in hardware.
You can configure VACLs for IP, IPX, and MAC-Layer traffic. VACLs applied to WAN interfaces 
support only IP traffic for VACL capture.
Command
Purpose
Router(config)# mac-address-table static mac_address 
vlan
 vlan_ID drop 
Blocks all traffic to or from the configured MAC address in 
the specified VLAN.
Router(config)# no mac-address-table static 
mac_address vlan vlan_ID 
Clears MAC address-based blocking.