Hi! On Thu, Oct 06, 2011 at 09:41:48PM +0530, ratheesh kannoth wrote: > I found a program at > http://www.netfilter.org/documentation/HOWTO/netfilter-hacking-HOWTO.txt. > I modified a little for my purpose. But it is not working. Could you > please guide me. The program is an example of Netfilter kernel module - not the way to go here. You should better use the LOG target, e.g. iptables -I INPUT -p icmp -j LOG --log-level=0 --log-prefix="My ping log: " which will produce (after "ping localhost") something like: My ping log: IN=lo OUT= MAC=00:00:00:00:00:00:00:00:00:00:00:00:08:00 SRC=127.0.0.1 DST=127.0.0.1 LEN=84 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=ICMP TYPE=8 CODE=0 ID=4508 SEQ=1 Best regards, Jasan -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html