Moltiblock is a plugin for netfilter that operates in user-space and is designed to effectively block extensive networks.
Once you have installed Moltiblock, you can conveniently block one CIDR per line in the cidr.deny file located in /etc/moltiblock/. Simply list down the networks you wish to block and make sure to separate them with a space. Users can even put comments in this file to make things more accessible and provide additional information.
Finally, one can operate Moltiblock daemon and run something like iptables -I FORWARD -p tcp --dport 6880:6999 -j QUEUE. The new release (0.10) comes with several improvements and prepares for seamless operation. This software is a must-have for anyone who desires to enhance their system security.
Version 0.10: N/A