OS: CentOS 5,5, 2.6.18-194.26.1.el5 Squid 2.6.STABLE21 (from repo, with --enable-wccpv2 options) Cisco 7201 (Cisco IOS Software, 7200 Software (C7200P-IK91S-M), Version 12.2(31)SB17, RELEASE SOFTWARE (fc1), image file c7200p-ik91s-mz.122-31.SB17.bin) I can not configure a transparent proxy. I hereby make the following: Cisco 7201 ---------------------------------------- ... ip wccp web-cache redirect-list PROXY ... interface GigabitEthernet0/0 ip address ... ip nat outside ... interface GigabitEthernet0/1 no ip address interface GigabitEthernet0/1.100 encapsulation dot1Q 100 ip unnumbered Loopback3 no ip unreachables ip wccp web-cache redirect out ip nat inside ... ip access-list extended PROXY deny ip host 192.168.2.2 any deny ip 192.168.1.0 0.0.0.255 192.168.0.0 0.000.255.255 permit tcp 192.168.1.0 0.0.0.255 any eq www deny ip any any ... ---------------------------------------- squid.conf ---------------------------------------- wccp2_router 192.168.255.250 (loopback on C7201) wccp2_address 192.168.2.2 wccp2_forwarding_method 1 wccp2_return_method 1 ... ---------------------------------------- GRE-tunnel script ---------------------------------------- #!/bin/sh ip tunnel add lnk0 mode gre remote 192.168.255.250 local 192.168.2.2 dev eth0 ifconfig lnk0 11.22.33.44 up /sbin/iptables -t nat -A PREROUTING -i lnk0 -p tcp --dport 80 -j DNAT --to-destination 192.168.2.2:3128 echo 1 > /proc/sys/net/ipv4/ip_forward echo 0 > /proc/sys/net/ipv4/conf/default/rp_filter echo 0 > /proc/sys/net/ipv4/conf/all/rp_filter echo 0 > /proc/sys/net/ipv4/conf/lo/rp_filter echo 0 > /proc/sys/net/ipv4/conf/$IF_MAIN/rp_filter echo 0 > /proc/sys/net/ipv4/conf/$IF_PTP/rp_filter ---------------------------------------- Cisco info ---------------------------------------- #show ip wccp web-cache Global WCCP information: Router information: Router Identifier: 192.168.255.250 (loopback) Protocol Version: 2.0 Service Identifier: web-cache Number of Cache Engines: 0 Number of routers: 0 Total Packets Redirected: 0 Redirect access-list: PROXY Total Packets Denied Redirect: 0 Total Packets Unassigned: 0 Group access-list: -none- Total Messages Denied to Group: 0 Total Authentication failures: 0 Total Bypassed Packets Received: 0 #show ip wccp web-cache detail WCCP Cache-Engine information: Web Cache ID: 192.168.2.2 Protocol Version: 2.0 State: NOT Usable Redirection: L2 Packet Return: L2 Packets Redirected: 0 Connect Time: 00:00:21 Assignment: MASK #show ip wccp web-cache view WCCP Routers Informed of: -none- WCCP Cache Engines Visible: 192.168.2.2 WCCP Cache Engines NOT Visible: -none- ---------------------------------------- Based on the results 'show ip wccp', Cisco does not see the Squid, as cache-engine. Advise what I need to fix it? -- WBR, Alibek