In order to disable The Cisco Web Cache Communication Protocol (WCCP) on one of your Cisco interfaces you will need to type a command on your router.
To disable the WCCP protocol on your router follow the steps below :
Run sh run on your router to see how the WCCP configured (is redirect in or out)
Type config t to enter the global configuration mode
Type interface <and the interface wccp is running on ) e.g int f0
Type no ip wccp web-cache redirect in to disable the wccp
Type copy start run to save configuration
The Web Cache Communication Protocol (WCCP) is a Cisco-developed content-routing technology which allows you to integrate cache engines (such as the Cisco Cache Engine 550) into your network infrastructure. Cisco IOS Release 12.1 allows the use of either Version 1 (WCCPv1) or Version 2 (WCCPv2) of the Web Cache Communication Protocol.