Cisco Systems 7600 Series Manual De Usuario

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 

Releases 12.1(11b)E or later supports VLAN ACLs (VACLs).

The following sections describe VACLs:

These sections describe VACLs:

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.

When you configure a VACL and apply it to a VLAN, all packets entering the VLAN are checked against 
this VACL. If you apply a VACL to the VLAN and an ACL to a routed interface in the VLAN, a packet 
coming in to the VLAN is first checked against the VACL and, if permitted, is then checked against the 
input ACL before it is handled by the routed interface. When the packet is routed to another VLAN, it 

Router(config)# mac-address-table static mac_address 

 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.