Command Reference, Cisco Ios Xe Everest 16.5.1A (Catalyst 3650 Switches - Cisco Catalyst 3650 series Command Reference Manual

Usage Guidelines
WCCP transparent caching bypasses Network Address Translation (NAT) when Cisco Express Forwarding
switching is enabled. To work around this situation, configure WCCP transparent caching in the outgoing
direction, enable Cisco Express Forwarding switching on the content engine interface, and specify the ip wccp
web-cache redirect out command. Configure WCCP in the incoming direction on the inside interface by
specifying the ip wccp redirect exclude in command on the router interface facing the cache. This configuration
prevents the redirection of any packets arriving on that interface.
You can also include a redirect list when configuring a service group. The specified redirect list will deny
packets with a NAT (source) IP address and prevent redirection.
This command instructs a device to enable or disable support for the specified service number or the web-cache
service name. A service number can be from 0 to 254. Once the service number or name is enabled, the router
can participate in the establishment of a service group.
When the no ip wccp command is entered, the device terminates participation in the service group, deallocates
space if none of the interfaces still have the service configured, and terminates the WCCP task if no other
services are configured.
The keywords following the web-cache keyword and the service-number argument are optional and may be
specified in any order, but only may be specified once.
Examples The following example configures a web cache, the interface connected to the application engine or the server,
and the interface connected to the client:
Device(config)# ip wccp web-cache
Device(config)# interface gigabitethernet1/0/1
Device(config-if)# no switchport
Device(config-if)# ip address 172.20.10.30 255.255.255.0
Device(config-if)# no shutdown
Device(config-if)# exit
Device(config)# interface gigabitethernet1/0/2
Device(config-if)# no switchport
Device(config-if)#
*Dec
Device(config-if)# ip address 175.20.20.10 255.255.255.0
Device(config-if)# no shutdown
Device(config-if)# ip wccp web-cache redirect in
Device(config-if)# ip wccp web-cache group-listen
Device(config-if)# exit
Related Commands
Command
show platform ip wccp
6 13:11:29.507: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/3, changed state to down

Command Reference, Cisco IOS XE Everest 16.5.1a (Catalyst 3650 Switches)

Description
Displays platform-dependent WCCP information.
ip wccp
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