Justin Iurman is a research fellow, teaching assistant and PhD student at the University of Liege in Belgium. He is passionate about network engineering and protocols in general, and about all other areas of computing too, whether high or low level. He also likes challenges where you have to surpass yourself. For his PhD thesis, he is mainly working on new measurement techniques such as In-situ OAM (IOAM), for which he is the author of the IPv6 implementation in the Linux kernel, and also focuses on IPv6 and, more specifically, on Extension Headers. Justin is active in the IETF since 2019, first as an implementer providing feedback to authors, and now as an author himself on different kinds of things.