LEGO and the IP packet header

At IIT Training we strive for an inclusive pedagogy. So, we are always looking at new and innovative ways to engage adult learners with complex technical matters in a fun way. One of our senior technical trainers, Geoff, has asked for buckets of lego for a new  hands-on session for our IPv4 and IPv6 courses. We thought it was for Open Systems Interconnection (OSI) model layering, but we were wrong, it was a whole lot better than that! was for the packet headers themselves, have a look what he'd come across: