Free downloads
Networking Cheat Sheets
Printable reference charts originally from PacketLife.net (now defunct), hosted as free PDFs on The IT Cave cheat sheets page. Use the links below to open or download each file directly.
Attribution
Jeremy Stretch — originally PacketLife.net · mirrored on The IT Cave
Public demo lists a small sample of external cheat sheet links. Full catalog is not bundled in this repository.
Fundamentals
IPv4 Subnetting (external)
CCNA coreSample link demonstrating the cheat sheet gallery layout.
https://theitcave.com/wp-content/uploads/2025/04/IPv4_Subnetting.pdf
Routing
OSPF (external)
CCNA coreExternal reference hosted on The IT Cave.
https://theitcave.com/wp-content/uploads/2025/04/OSPF.pdf