Dear all, I have gone the the procedure as described at the following URL URL: http://wiki.squid-cache.org/Features/Tproxy4#head-f17bb712222beeb0aa083f02237aad6fdfaa1be2 I have successfully complied kernel:2.6.28.1 and iptables:1.4.3 with tproxy:2.6.25-20080519-165031-1211208631.tar.bz2 Now when I run following ipables commands, all the commands running without any problem except.... iptables 1.4.3 Configuration iptables -t mangle -A PREROUTING -p tcp -m socket -j DIVERT and error messege shown: [root@hpproxy ~]# iptables -t mangle -A PREROUTING -p tcp -m socket -j DIVERT iptables: No chain/target/match by that name. Run `dmesg' for more information. [root@hpproxy ~]# Anybody plese give me solution.. Thanks Monzur Grameen CyberNet Ltd. Dhaka,Bangladesh