ISR 1800 and above. 
The following platforms are recommended for use with Cisco WAAS and the WCCP tcp-promiscuous services:
â¢	Cisco Integrated Services Routers (1800, 2800, 3800) 
â¢	Cisco 3700, 7200 (NPE-400, NPE-G1, and NPE-G2 only), 7600, and ASR 1000 Series Routers 
â¢	Cisco Catalyst 3560 and 3750 Series Switches 
â¢	Cisco Catalyst 4500 and 4948 Series Switches 
â¢	Cisco Catalyst 6500 Series Switches