I have deploy Transparent proxy using this tutorials: on L3 switch: http://wiki.squid-cache.org/ConfigExamples/Intercept/Cisco2501PolicyRoute on centos 6.5 box ( squid ): http://wiki.squid-cache.org/ConfigExamples/Intercept/LinuxRedirect when I request the web page from one client, It returns to me, so I thought that transparent proxy works fine. but the problem is that I can't find any records in the "access.log" file, so it seems that the client get the page from the server directly. 1- Is the problem that squid doesn't log when it is in a transparent mode? 2- Or is the client get the page directly from the server( if so, how can I add a rule to the Iptables or an access list to forbid the client from getting the page directly from the server) ? Mark