Notes #
This section is to help make notes for RFC’s of various topics.
IP Addressing #
Documentation #
- RFC 5737: IPv4 Address Blocks Reserved for Documentation: Specifies IPv4 blocks for examples:
- 192.0.2.0/24 (TEST-NET-1)
- 198.51.100.0/24 (TEST-NET-2)
- 203.0.113.0/24 (TEST-NET-3)
- RFC 3849: IPv6 Address Prefix for Documentation: Reserves the 2001:DB8::/32 prefix for IPv6 documentation.
Internal Networking #
- RFC 1918: Address Allocation for Private Internets: Defines private, non-routable IPv4 addresses (e.g., 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16) for internal use, not documentation, but useful for internal examples.
- RFC 5735: Special Use IPv4 Addresses: A broader document that lists 169.254.0.0/16 as a “link-local” block for single-link communication.
- RFC 6598: To provide IP address space for large-scale CGNAT deployments by Internet Service Providers (ISPs) as IPv4 addresses deplete.
DNS #
Reserved #
-RFC 2606: Reserved Top Level DNS Names: Reserves domain names like .test, .example, .invalid, and .localhost for documentation.