EUD Hub
A growing collection of interactive tools and apps. Every app is built to explain, visualize, or do something useful — click a card to jump in.
Apps
Networking
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Packet Journey — OSI Model
Watch a packet travel from host to host, wrapped in OSI layers, across a LAN and across the internet. Includes the 7-layer model, animated diagrams, and Cisco IOS commands.
7 layers
Animated
Cisco IOS
LAN + WAN
Open app →
Coming soon
More apps on the way
Subnetting trainer, protocol playground, config lab, and more are in the works. Check back soon.