Cisco Systems EA6500 Manual De Usuario

This example shows how to enable Layer 3 protocol filtering globally:

Router# configure terminal

Router(config)# protocol-filtering 

To configure Layer 3 protocol filtering on a Layer 2 LAN port, perform this task:

This example shows how to configure the protocol membership of Fast Ethernet port 5/8 to allow IPX 
packets only, and verify the configuration:

Router(config)# interface fastethernet 5/8

Router(config-if)# switchport protocol appletalk off

Router(config-if)# switchport protocol ip off

Router(config-if)# switchport protocol ipx on

To verify Layer 3 protocol filtering configuration, perform this task:

This example shows how to verify the Layer 3 protocol filtering configuration of Fast Ethernet port 5/8:

Router# show protocol-filtering interface fastethernet 5/8

Interface       IP Mode         IPX Mode        Group Mode      Other Mode

--------------------------------------------------------------------------

Fa5/8           OFF             ON              OFF             OFF

Router# 

The show protocol filtering command shows only ports that have at least one protocol set to the 
nondefault configuration.

Router(config)# interface {{type

1

 slot/port} | 

{port-channel number}}

1.

type = ethernet, fastethernet, gigabitethernet, or tengigabitethernet 

Selects the interface to configure.

Router(config-if)# switchport protocol {appletalk 

| ip | ipx | group} {on | off | auto}

Configures Layer 3 protocol filtering on the LAN port. 

Router(config-if)# no switchport protocol 

{appletalk | ip | ipx | group} 

Clears Layer 3 protocol filtering configuration on the 
LAN port. 

Router# show protocol-filtering interface 

{{type

1

 slot/port} | {port-channel number}} 

1.

type = ethernet, fastethernet, gigabitethernet, or tengigabitethernet 

Verifies the interface filtering configuration.