RFC 4632: Classless Inter-domain Routing (CIDR): The Internet Address Assignment and Aggregation Plan

This memo discusses the strategy for address assignment of the existing 32-bit IPv4 address space with a view toward conserving the address space and limiting…

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Outgoing relationships (1 related RFC)

Obsoletes — RFC 1519: Classless Inter-Domain Routing (CIDR): an Address Assignment and Aggregation Strategy

Incoming relationships (31 related RFCs)

Normatively referenced by — RFC 6830: The Locator/ID Separation Protocol (LISP)
Normatively referenced by — RFC 6811: BGP Prefix Origin Validation
Normatively referenced by — RFC 7285: Application-Layer Traffic Optimization (ALTO) Protocol
Normatively referenced by — RFC 6836: Locator/ID Separation Protocol Alternative Logical Topology (LISP+ALT)
Normatively referenced by — RFC 7084: Basic Requirements for IPv6 Customer Edge Routers
Normatively referenced by — RFC 9132: Distributed Denial-of-Service Open Threat Signaling (DOTS) Signal Channel Specification
Normatively referenced by — RFC 6748: Optional Advanced Deployment Scenarios for the Identifier-Locator Network Protocol (ILNP)
Normatively referenced by — RFC 9082: Registration Data Access Protocol (RDAP) Query Format
Normatively referenced by — RFC 6835: The Locator/ID Separation Protocol Internet Groper (LIG)
Normatively referenced by — RFC 7482: Registration Data Access Protocol (RDAP) Query Format
Normatively referenced by — RFC 7484: Finding the Authoritative Registration Data (RDAP) Service
Normatively referenced by — RFC 6204: Basic Requirements for IPv6 Customer Edge Routers
Normatively referenced by — RFC 8805: A Format for Self-Published IP Geolocation Feeds
Normatively referenced by — RFC 7608: IPv6 Prefix Length Recommendation for Forwarding
Normatively referenced by — RFC 9224: Finding the Authoritative Registration Data Access Protocol (RDAP) Service
Normatively referenced by — RFC 9240: An Extension for Application-Layer Traffic Optimization (ALTO): Entity Property Maps
Normatively referenced by — RFC 6219: The China Education and Research Network (CERNET) IVI Translation Design and Deployment for the IPv4/IPv6 Coexistence and Transition
Normatively referenced by — RFC 8157: Huawei's GRE Tunnel Bonding Protocol
Normatively referenced by — RFC 8416: Simplified Local Internet Number Resource Management with the RPKI (SLURM)
Normatively referenced by — RFC 9774: Deprecation of AS_SET and AS_CONFED_SET in BGP
Informatively referenced by — RFC 4984: Report from the IAB Workshop on Routing and Addressing
Informatively referenced by — RFC 7597: Mapping of Address and Port with Encapsulation (MAP-E)
Informatively referenced by — RFC 5942: IPv6 Subnet Model: The Relationship between Links and Subnet Prefixes
Informatively referenced by — RFC 4945: The Internet IP Security PKI Profile of IKEv1/ISAKMP, IKEv2, and PKIX
Informatively referenced by — RFC 8170: Planning for Protocol Adoption and Subsequent Transitions
Informatively referenced by — RFC 6907: Use Cases and Interpretations of Resource Public Key Infrastructure (RPKI) Objects for Issuers and Relying Parties
Informatively referenced by — RFC 9632: Finding and Using Geofeed Data
Informatively referenced by — RFC 6656: Description of Cisco Systems' Subnet Allocation Option for DHCPv4
Informatively referenced by — RFC 8686: Application-Layer Traffic Optimization (ALTO) Cross-Domain Server Discovery
Informatively referenced by — RFC 9758: Updates to the 'ipn' URI Scheme
Informatively referenced by — RFC 9977: Publishing End-Site Prefix Lengths