Dear All, I'm trying to use "external_acl_type" with squid3-stable-19 to enforce user Authentication. I don't want to authenticate every request but have Squid talk to my policy framework before deciding either to authenticate or skip authentication for the request. The policy will be based on source-ip of the request. Is there a way to do this in Squid? I was hoping Squid to use the return value of external helper program to enforce authentication. I do not want to configure this statically in squid.conf as the policies keep changing.\ Thanks in Advance, Kiran