Hello, colleagues. I have a firewall Cisco ASA 5545-X, and Cisco WSA S170. I plan to use the WSA as transparent proxy. I whant to redirect http/s traffic to WSA from Cisco ASA by WCCP. Manuals provide simple examples (The figure - left scheme).

So the first case is clear. However, Cisco ASA have not only the Internet but also WAN network, i.e. remote branches. In the Internet they go through the same ASA 5545X. I would like to redirect their http/s traffic on the same WSA. Is it possible to connect one port WSA as shown in the right diagram of Figure (dotted line) and also use WCCP? Use WCCP to redirect traffic from two segments (LAN and WAN) on one WSA.

P.S. I'm sorry for my poor English.