Lekensteyn/wireguard-dissector
Wireshark dissector (written in Lua) for dissecting the WireGuard tunneling protocol. This dissector is obsolete, an improved version is included in Wireshark 2.9.x. See this comment for more further instructions. Requirements: Wireshark 2.0.2 or newer (tested with Wireshark 2.3.x). luagcrypt and Libgcrypt 1.7 for (optional) decryption support.
https://github.com/Lekensteyn/wireguard-dissector