Hi I am working on some performance measures of the IPtables these days. I want to know; Is it possible that output of iptables list command i.e. iptables -L with -n -v can be changed so that I can view my variables along with the other chains. I have tried to find out; but i am still in searching. My work is related to protocols and is therefore I want to print output along with the list of rules. Since the rules in each chain has been implemented in the link list format; it is very difficult to print variables through proc filesystem due to the variability nature of the link list. I have tried with strace to find which module does this operation calls; and I have come with libipt_standard.so library file. I have seen the code; but didnt find which function is processing the list request. Regards