BetterCap is the state of the art, modular, portable and easily extensible MITM framework featuring ARP, DNS and ICMP spoofing, sslstripping, credentials harvesting and more.

PacketFu is a mid-level packet manipulation library for Ruby. With it, users can read, parse, and write network packets with the level of ease and fun they expect from Ruby.

PacketGen is a network packet manipulation library. It allows reading, parsing and sending network packets with fun.

Library for interacting with Amazon Dash buttons

You never know when you're going need a simple, hobbit-like ( small ) network packet burglaring ( capturing ) library such as Bilbo.

GNMS is a graphical tool used to monitor state of network elements

metasploit-framework

IP packet counter for console, uses pcaprub.

Magically streaming live packet captures with a simple REST API

Helper methods for pcaprub making life easy.