Downloads for your next study session

FREE STUFF

Cheat sheets, printable flashcards and packet-person wallpapers.

Free for personal study. PDFs are ready to print; wallpapers are PNG images. These original study aids are not official Cisco training material.

One Hello at a time. Desktop wallpaper

An original packet-person wallpaper. PNG, 2560 × 1440.

An original packet-person wallpaper. PNG, 1440 × 2560.

From missing neighbor to missing prefix: a printable investigation path.

Twelve original OSPF study prompts. Print, cut and fold.

What each state means and where to look when progress stops.

Types 1, 2, 3, 4, 5 and 7: originator, purpose and scope.

A one-page OSPFv2 mental model, roles, packets and first checks.