Hey Ben, I want to try and reset this issue because I am missing some technical details. 1. What Linux Distro and what version are you using? 2. the output of 'ip address' 3. the output of 'ip rule' 4. the output of 'ip route show' 5. the output of 'ip route show table 100' 6. the output of 'iptables-save' 7. the output of 'nft -nn list ruleset' (if exists on the OS) 8. the output of your squid.conf 9. the output of 'squid -v' 10. the output of 'uname -a' Once we will have all the above details (reducing/modifying any private details) we can try to maybe help you. Eliezer -----Original Message----- From: squid-users <squid-users-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of Ben Goz Sent: Wednesday, June 30, 2021 3:16 PM To: squid-users@xxxxxxxxxxxxxxxxxxxxx Subject: TPROXY Error By the help of God. Hi All, I'm trying to configure squid as a transparent proxy using TPROXY. The machine I'm using has 2 NICs, one for input and the other one for output traffic. The TPROXY iptables rules are configured on the input NIC. It looks like iptables TPROXY redirect works but squid prints out the following error: ERROR: NAT/TPROXY lookup failed to locate original IPs on local=xxx:443 remote=xxx:49471 FD 14 flags=17 I think I loaded all TPROXY required kernel modules. The ip forwarding works fine without the iptables rules. and I don't see any squid ERROR on getsockopt Please let me know what I'm missing? Thanks, Ben _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users