Hi, I am following http://wiki.squid-cache.org/Features/Tproxy4 strictly but failed to configure with CISCO router & WCCP2. My setup as follow: Clients PCs>-----------------------------[Core switch]-------->>-----------[Edge CISCO Router with WCCP2]--------------->Internet || [Squid 3.1.10 with Fedora 14, iptables, tproxy] I can't configure Cisco router with following configuration as there is no other interface there (only two, one connected with core internal switch and rest with internet. Please help me. ============================= interface GigabitEthernet0/3.100 description ADSL customers encapsulation dot1Q 502 ip address x.x.x.x y.y.y.y ip wccp 80 redirect in ip wccp 90 redirect out interface GigabitEthernet0/3.101 description Dialup customers encapsulation dot1Q 502 ip address x.x.x.x y.y.y.y ip wccp 80 redirect in ip wccp 90 redirect out interface GigabitEthernet0/3.102 description proxy servers encapsulation dot1Q 506 ip address x.x.x.x y.y.y.y ip wccp redirect exclude in ===================== Another question, how do check gre is configured at Linux? BR, Azhar Chowdhury