Hi, I have built a machine with a Squid, with lightsquid, and i would like to use it just like a network monitor. So I plugged the ETH1 of the PC on a cisco switch on a port that received each traffic send to the internet. the squid is started. (transparent mode)the ip forward is set to 1I have put this iptables rule: iptables -t nat - A PREROUTING -i eth1 -p tcp --dport 80 -j REDIRECT --to-port 3128 but the access.log does not populate, whereas on Ntop, on the same machine, I see a lot of traffic (http) Something weird is the command iptables -L -t nat -v , shows no match for the rule created. First I think that ntop could intercept the traffic, but stopping it did not helped? Thanks for your future help. Herc.