Dear all, I need to use Squid as a Transparent Proxy using WCCP (with Reverse Proxy function enabled) on my Linux Debian 5.0.5. The Squid binaries available directly with apt-get aren't build AFAIK with the transparent proxy option enabled, so I downloaded the latest code source (3.1.6) from http://www.squid-cache.org and I'm now in the process of compiling it. I have installed gcc and gcc-c++ (package build-essential) to avoid the compiler complain about missing the necessary Linux kernel header files (Netfilter). My compiling options are as follows: ./configure --enable-linux-netfilter --enable-wccp Now, the problem is that I get the following error: checking if Linux (Netfilter) kernel header files are installed... yes configure: WARNING: Missing needed capabilities (libcap or libcap2) for TPROXY configure: WARNING: Linux Transparent Proxy support WILL NOT be enabled configure: WARNING: Reduced support to Interception Proxy configure: WARNING: Missing needed capabilities (libcap or libcap2) for TPROXY v2 configure: WARNING: Linux Transparent Proxy support WILL NOT be enabled However, I *do* have libcap2 on my machine, and it's up-to-date (apt-get upgrade libcap2). Any hint? Thanks in advance for your help. Leonardo