The document provides Web Cache Communication Protocol (WCCP) support for Cisco IOS® software and Cisco Content Engine software. WCCP is implemented within software-switching paths of all supported platforms shown in the table below. WCCP is available for process-, fast-, and Cisco Express Forward- (CEF-) based forwarding paths.
WCCP, developed by Cisco, specifies interactions between one or more routers (or Layer 3 switches), and one or more Web caches. The interaction establishes and maintains the transparent redirection of selected types of traffic flowing through a group of routers. The selected traffic is redirected to a group of Web caches with the aim of optimizing resource usage and lowering response times.
For more information on document conventions, see the Cisco Technical Tips Conventions.
There are no specific prerequisites for this document.
This document is not restricted to specific software and hardware versions.
The information presented in this document was created from devices in a specific lab environment. All devices used in this document started with a cleared (default) configuration. If you are working in a live network, ensure that you understand the potential impact of any command before using it.
You can verify the platform and Cisco IOS software release on a router for the respective WCCP version (Version 1 (v1) or Version 2 (v2) ) by using the Cisco IOS Feature Navigator (registered customers only) tool.
The table below shows what version of WCCP is supported on the respective Content Engine software.
| WCCP Version
|| Content Engine Version
| WCCPv1 WCCPv2
|| 1.76 or higher