I still stunned. Can you explain more in deeper detail so I can understand what the problem is. I'm really appreciate it Vichao S On Thu, Apr 8, 2010 at 2:03 PM, Amos Jeffries <squid3@xxxxxxxxxxxxx> wrote: > > Vichao Saenghiranwathana wrote: >> >> What I have done so far are >> 1. Connected squid transparent proxy server with ASA5510 via eth0 interface >> >> 2. Set up NAT at ASA5510 to map squid transparent proxy >> server(192.168.9.251) with the public ip (203.130.133.9) >> > > There should be no need for NAT on the ASA. Relevant packets get _routed_ down the WCCP tunnel to the Squid box where NAT happens. > > Squid outbound traffic gets the same handling any outbound traffic would (except pushing back down the wccp tunnel). > > >> 3. Configured eth0 interface >> eth0.0 ----------> 192.168.9.251 >> eth0.1 ----------> 203.130.133.9 >> >> 4. Added wccp to squid.conf >> http_port 3128 transparent >> # ###### 192.168.9.253 is ASA5510 >> wccp2_router 192.168.9.253 >> wccp2_forwarding_method 1 >> wccp2_return_method 1 >> wccp2_assignment_method 1 >> httpd_accel_no_pmtu_disc on >> >> 5. Used is following command >> modprobe ip_gre >> iptunnel add gre0 mode gre remote 192.168.9.253 local 192.168.9.251 dev eth0.0 >> ifconfig gre0 inet 192.168.9.251 netmask 255.255.255.0 up >> ip link set eth0 mtu 1400 >> ip link set gre0 mtu 1400 >> echo 1 > /proc/sys/net/ipv4/ip_forward >> echo 0 > /proc/sys/net/ipv4/tcp_window_scaling >> 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/eth0/rp_filter >> echo 0 > /proc/sys/net/ipv4/conf/lo/rp_filter >> echo 0 > /proc/sys/net/ipv4/conf/gre0/rp_filter >> iptables -t nat -A PREROUTING -i gre0 -p tcp -m tcp --dport 80 -j >> REDIRECT --to-port 3128 >> >> 6. Cisco config >> wccp web-cache >> wccp interface inside web-cache redirect in >> >> This is my network diagram >> Network diagram : http://dl.dropbox.com/u/5966530/Network%20Diagram_small.jpg >> >> I would like to know if I missed some steps or I did something wrong. >> >> Your help will be greatly appreciated! >> > > Amos > -- > Please be using > Current Stable Squid 2.7.STABLE9 or 3.1.1