#!/bin/bash

for i in this_chain_name_is_32_chars_long this_chain_name_is_30_longgggg this_chain_name_is_29_longggg this_chain_name_is_28_longgg; do
	length=$(echo -n $i | wc -c);
	echo
	echo "Trying $i, which is $length characters long";

	set -x
	
	iptables -t nat -N $i && \
	iptables -t nat -A POSTROUTING -j $i;

	set +x
done