Patch to upgrade from Netfilter 0.1.8.
You can download it from the following link: https://packetstormsecurity.com/files/download/16070/patch-netfilter-0.1.8-0.1.9.bz2
Source: https://packetstormsecurity.com/files/16070/patch-netfilter-0.1.8-0.1.9.bz2.html