Muenster University of Applied Sciences Politecnico di Torino Airbus Defence and Space CyberSecurity Wireshark Foundation Red Hat Sandelman Software Works This document contains a number of extensions to the PCAPng file format which are outside of the IETF networking mandate. Discussion Venues This note is to be removed before publishing as an RFC. Discussion of this document takes place on the OPSAWG Working Group mailing list (opsawg@ietf.org), which is archived at https://mailarchive.ietf.org/arch/browse/opsawg/. Source for this draft and an issue tracker can be found at https://github.com/pcapng/pcapng.