USCoGa
       stands for User Space Connections Gateway
 (ARC) Tarball
       USCoGa is a technique to capture IP-streams in userspace
 (HTM) Overview
 (HTM) IP_TRANSPARENT
       Related info:
       Divert Socket (Ilia Baldine): http://www.faqs.org/docs/Linux-mini/Divert-Sockets-mini-HOWTO.html
       Network packet capturing for Linux (Ashish Chaurasia): https://www6.software.ibm.com/developerworks/education/l-packet/l-packet-a4.pdf
       TProxy: https://github.com/torvalds/linux/blob/master/Documentation/networking/tproxy.txt