Explore packet capture, analysis, and injection techniques using Go in this GopherCon 2016 talk by John Leon. Dive into the world of packet capturing, learning its applications and motivations. Discover common tools and prerequisites, including WinPcap. Get an overview of the gopacket library and its capabilities. Learn to find network devices, open live devices, create packet sources, and read packets with and without filters. Understand how to work with pcap files for writing and analyze various packet layers, including Ethernet, IP, and TCP. Explore faster decoding methods and custom layer creation. Gain insights into creating packets, working with flows and endpoints, and see practical demonstrations of these concepts in action.