Cisco 7609 User Manual

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Cisco 7600 Series Router Cisco IOS Software Configuration Guide—12.1E
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Chapter 35 Configuring Web Cache Services Using WCCP
Configuring WCCP
For network configurations where redirected traffic needs to traverse an intervening router, the router
being traversed must be configured to perform IP multicast routing. You must configure the following
two components to enable traversal over an intervening router:
• Enable IP multicast routing using the ip multicast routing interface configuration command.
• Enable the interfaces to which the cache engines will connect to receive multicast transmissions
using the ip wccp group-listen interface configuration command (note that earlier Cisco IOS
versions required the use of the ip pim interface configuration command).
Using Access Lists for a WCCP Service Group
To configure the router to use an access list to determine which traffic should be directed to which cache
engines, perform this task in global configuration mode:
To disable caching for certain clients, perform this task in global configuration mode:
Setting a Password for a Router and Cache Engines
MD5 password security requires that each router and cache engine that wants to join a service group be
configured with the service group password. The password can consist of up to seven characters. Each
cache engine or router in the service group will authenticate the security component in a received WCCP
packet immediately after validating the WCCP message header. Packets failing authentication will be
discarded.
Step 2
Router(config)# interface type number
Specifies the interface to be configured for multicast
reception.
Step 3
Router(config-if)# ip wccp {web-cache |
service-number} group-listen
Enables the reception of IP multicast packets (content
originating from the cache engines) on the interface
specified in Step 2.
Command Purpose
Command Purpose
Step 1
Router(config)# access-list access-list permit ip
host host-address [destination-address |
destination-host | any]
Creates an access list that enables or disables traffic
redirection to the cache engine.
Step 2
Router(config)# ip wccp web-cache group-list
access-list
Indicates to the router from which IP addresses of cache
engines to accept packets.
Command Purpose
Step 1
Router(config)# access-list access-list permit ip
host host-address [destination-address |
destination-host | any]
Creates an access list that enables or disables traffic
redirection to the cache engine.
Step 2
Router(config)# ip wccp web-cache redirect-list
access-list
Sets the access list used to enable redirection.

Cisco 7609 Specifications

General

Chassis Slots	9
Switch Fabric Capacity	720 Gbps
Power Supply Options	AC or DC
Product Type	Router
Form Factor	Rack-mountable
Supported Line Cards	Various Cisco 7600 Series line cards
Operating System	Cisco IOS
Management	CLI, SNMP
Forwarding Performance	400 Mpps
Maximum Power Consumption	4000 Watts
Redundancy	Yes
Interfaces/Ports	Various, depending on line cards installed

Summary

Product Overview

Configuring Embedded CiscoView Support

Describes the Embedded CiscoView support available with Release 12.1(20)E and later releases.

Command-Line Interfaces

Accessing the CLI

Describes accessing the CLI through the EIA/TIA-232 Console Interface and Telnet.

Configuring the Cisco 7600 Series Router for the First Time

Default Configuration

Shows the default configuration for the Cisco 7600 Series Router.

Configuring EHSA Supervisor Engine Redundancy

Supervisor Engine Redundant Operation

Describes how EHSA redundant operation works.

Configuring RPR and RPR+ Supervisor Engine Redundancy

Understanding Supervisor Engine Redundancy

Describes supervisor engine redundancy.

Configuring Interfaces

Understanding Interface Configuration

Explains how to configure interfaces on a per-interface basis.

Configuring LAN Ports for Layer 2 Switching

Understanding How Layer 2 Switching Works

Describes how Layer 2 switching works on Cisco 7600 series routers.

Configuring VTP

Understanding How VTP Works

Explains VTP as a Layer 2 messaging protocol that maintains VLAN configuration consistency.

Configuring VLANs

Understanding How VLANs Work

Describes how VLANs work on Cisco 7600 series routers.

Configuring Private VLANs

Understanding How Private VLANs Work

Describes how private VLANs work and their port types.

Configuring Cisco IP Phone Support

Understanding Cisco IP Phone Support

Describes Cisco IP Phone support, connections, voice, data, and power configurations.

Configuring Layer 3 Interfaces

Configuring IP Routing and Addresses

Provides information on configuring Layer 3 interfaces and IP addresses.

Configuring EtherChannels

Understanding How EtherChannels Work

Describes how EtherChannels work, including bundling individual Ethernet links.

Configuring IEEE 802.1Q Tunneling and Layer 2 Protocol Tunneling

Understanding How 802.1Q Tunneling Works

Explains how 802.1Q tunneling enables service providers to support customer VLANs while preserving IDs.

Configuring STP and IEEE 802.1s MST

Understanding How STP Works

Describes how STP works, providing path redundancy and preventing loops.

Configuring Optional STP Features

Understanding How PortFast Works

Explains STP PortFast, which allows Layer 2 LAN interfaces to enter forwarding state immediately.

Configuring IP Unicast Layer 3 Switching on Supervisor Engine 2

Understanding How Layer 3 Switching Works

Describes Layer 3 switching with PFC2 and DFCs.

Configuring IP Multicast Layer 3 Switching

Understanding How IP Multicast Layer 3 Switching Works

Describes how IP multicast Layer 3 switching works.

Configuring IP Unicast Layer 3 Switching on Supervisor Engine 1

Understanding How IP MLS Works

Describes how IP MLS works.

Configuring IPX Unicast Layer 3 Switching on Supervisor Engine 1

Understanding How IPX MLS Works

Describes how IPX MLS works.

Configuring IGMP Snooping

Understanding How IGMP Snooping Works

Describes how IGMP snooping works.

Configuring RGMP

Understanding How RGMP Works

Describes how RGMP works.

Configuring Network Security

ACL Configuration Guidelines

Provides guidelines for Access Control List (ACL) configurations.

Configuring Denial of Service Protection

DoS Protection Overview

Explains the DoS protection available on the Cisco 7600 series router.

Configuring IEEE 802.1X Port-Based Authentication

Understanding 802.1X Port-Based Authentication

Describes the IEEE 802.1X port-based authentication protocol.

Configuring Port Security

Understanding Port Security

Describes the port security feature to restrict input to an interface.

Configuring Layer 3 Protocol Filtering on Supervisor Engine 1

Understanding How Layer 3 Protocol Filtering Works

Explains how Layer 3 protocol filtering prevents specific Layer 3 protocol packets.

Configuring Traffic Storm Control

Understanding Traffic Storm Control

Describes how traffic storm control prevents LAN ports from disruption by storms.

Configuring Broadcast Suppression

Understanding How Broadcast Suppression Works

Describes how broadcast suppression prevents LAN interfaces from disruption.

Configuring CDP

Understanding How CDP Works

Describes CDP as a protocol that runs over Layer 2.

Configuring UDLD

Understanding How UDLD Works

Describes how UDLD works.

Configuring PFC QoS

Understanding How PFC QoS Works

Describes how PFC QoS works.

Configuring NDE

Understanding How NDE Works

Describes how NetFlow Data Export (NDE) works.

Configuring Local SPAN and RSPAN

Understanding How Local SPAN and RSPAN Work

Describes how local SPAN and RSPAN work.

Configuring Web Cache Services Using WCCP

Understanding WCCP

Describes the Web Cache Communication Protocol (WCCP).

Configuring SNMP IfIndex Persistence

Understanding SNMP IfIndex Persistence

Describes the SNMP ifIndex persistence feature.

Configuring the Switch Fabric Module

Understanding How the Switch Fabric Module Works

Describes how the Switch Fabric Module works.

Power Management and Environmental Monitoring

Understanding How Power Management Works

Describes the power management features.

Appendix A Acronyms