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 global 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.
SUMMARY STEPS
1.
enable
2.
configure terminal
3.
ip multicast-routing [vrf vrf-name] [distributed]
4.
ip wccp [vrf vrf-name] {web-cache | service-number} group-address multicast-address
5.
interface type number
6.
ip pim {sparse-mode | sparse-dense-mode | dense-mode [proxy-register {list access-list | route-map
map-name}]}
7.
ip wccp [vrf vrf-name] {web-cache | service-number} group-listen
DETAILED STEPS
PurposeCommand or Action
Enables privileged EXEC mode.enable
Step 1
Example:
Device> enable
•
Enter your password if prompted.
Enters global configuration mode.configure terminal
Example:
Device# configure terminal
Step 2
Enables IP multicast routing.
ip multicast-routing [vrf vrf-name] [distributed]
Example:
Device(config)# ip multicast-routing
Step 3
Specifies the multicast address for the service group.
ip wccp [vrf vrf-name] {web-cache | service-number}
group-address multicast-address
Step 4
Example:
Device(config)# ip wccp 99 group-address
239.1.1.1
IP Application Services Configuration Guide, Cisco IOS XE Release 3S (Cisco ASR 1000)
68
Configuring WCCP
Registering a Router to a Multicast Address