Every RFC, explained simply

Internet standards translated from spec-speak into plain English. Pick a document and see what it actually decides.

RFC 1918 · February 1996Networking-Basics
Private IP addresses, explained like you're new here.
RFC 1918 reserves 10.0.0.0/8, 172.16.0.0/12 and 192.168.0.0/16 for private networks. What that means and why your router is 192.168.0.1, in plain English.