Hi All, I have basic clarifications on working of Tproxy4 with Squid. With tproxy2, the destination port of http packets are getting changed to squid port 3128 and its handled by squid appropriately. TPROXY all -- eth0 any anywhere anywhere TPROXY redirect 0.0.0.0:3128 With tproxy4,I understand http packets are routed to squid via lo interface and there is no change in destination port. I want to understand how these packets are getting hooked by squid even its not destined for his port (3129). how tproxy4 works with squid? Also, How reverse traffic is getting handled by squid ? Regards, Saravanan N