On 5/08/2014 12:27 a.m., Squid user wrote: > Hi Amos. > > Could you please be more specific? > > I cannot find any wccp-related directive in Squid named IIRC or similar. IIRC = "If I Recall Correctly". I am basing my answer on code knowledge I gained a year or two back. Just re-checked the code and confirmed. The flag names on wccp2_service_info are the same for both hash and mask methods. What they do is different and hard-coded into Squid. For mask assignment the static mask of 0x00001741 is sent from Squid for each of the fields you configure a flag for. http://www.squid-cache.org/Doc/config/wccp2_service_info/ Examples of what you need for your earlier requested config (Sorry about the line wrap): wccp2_service_info 80 protocol=tcp flags=src_ip_hash priority=240 ports=80 with mask assignment method sets the mask to be 0x1741 on the packet src-IP when protocol is TCP and dst-port 80. wccp2_service_info 90 protocol=tcp flags=dst_ip_hash priority=240 ports=80 with mask assignment method sets the mask to be 0x1741 on the packet dst-IP when protocol is TCP and dst-port 80. Amos