The Blue Coat ProxySG supports WCCP v1 and v2.
For information on implementing these versions, please refer to the following WCCP specific references:
For SGOS 5.x, please see Volume 5: Advanced Networking; Chapter 17: WCCP Settings; Using WCCP with the ProxySG in the Configuration and Management Guide (CMG). The CMGs for all versions of SGOS are located at https://bto.bluecoat.com/documentation/pubs/ProxySG .
For SGOS 4.x, please see Appendix C: Using WCCP in the Configuration and Management Guide (CMG).
For SGOS 5.4.x, there is the WCCP Reference Guide, found at https://bto.bluecoat.com/doc/10621 . For SGOS 5.3.x, the WCCP Reference Guide is located at https://bto.bluecoat.com/doc/8717 .