Ip Wccp Group-Listen - Cisco Catalyst 4500 Series Command Reference Manual

Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches

ip wccp group-listen

To configure an interface on a router to enable or disable the reception of IP multicast packets for Web
Cache Communication Protocol (WCCP), use the ip wccp group-listen command in interface
configuration mode. To disable the reception of IP multicast packets for WCCP, use the no form of this
command.
Syntax Description
web-cache
service-number
Defaults This command is disabled by default.
Command Modes Interface configuration (config-if)
Command History Release
12.2(31)SG
IOS XE 3.2(0)SG
(15.0(2)SG)
IOS XE 3.3.0 SG
(15.1(1)SG)
Usage Guidelines On routers that are to be members of a Service Group when IP multicast is used, the following
configuration is required:
•
•
Examples The following example shows how to enable the multicast packets for a web cache with a multicast
address of 224.1.1.100:
Switch# configure terminal
Switch(config)# ip wccp web-cache group-address 224.1.1.100
Switch(config)# interface gigabitethernet 3/1
Switch(config-if)# ip wccp web-cache group-listen
OL-25342 -01
ip wccp {web-cache | service-number} group-listen
no ip wccp {web-cache | service-number} group-listen
Configure the IP multicast address for use by the WCCP Service Group.
Configure the interfaces on which the router wishes to receive the IP multicast address with the
ip wccp {web-cache | service-number} group-listen interface configuration command.
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.3.0SG and IOS 15.1(1)SG)
The web cache service.
WCCP service number; valid values are from 0 to 254.
Modification
Support introduced on the Catalyst 4500 series switch.
Support extended to Supervisor Engine 6-E, Supervisor Engine 6L-E,
Catalyst 4900M, and Catalyst 4948E.
Supported extended to Supervisor Engine 7-E and Supervisor Engine
7L-E.
ip wccp group-listen
2-343