RFC 1305: Network Time Protocol (Version 3) Specification, Implementation and Analysis

This document describes the Network Time Protocol (NTP), specifies its formal structure and summarizes information useful for its implementation.

Read RFC 1305 on the RFC Editor

Outgoing relationships (3 related RFCs)

Obsoletes — RFC 958: Network Time Protocol (NTP)
Obsoletes — RFC 1119: Network Time Protocol (version 2) specification and implementation
Obsoletes — RFC 1059: Network Time Protocol (version 1) specification and implementation

Incoming relationships (44 related RFCs)

Obsoleted by — RFC 5905: Network Time Protocol Version 4: Protocol and Algorithms Specification
Normatively referenced by — RFC 3315: Dynamic Host Configuration Protocol for IPv6 (DHCPv6)
Normatively referenced by — RFC 4193: Unique Local IPv6 Unicast Addresses
Normatively referenced by — RFC 5415: Control And Provisioning of Wireless Access Points (CAPWAP) Protocol Specification
Normatively referenced by — RFC 3576: Dynamic Authorization Extensions to Remote Authentication Dial In User Service (RADIUS)
Normatively referenced by — RFC 4285: Authentication Protocol for Mobile IPv6
Normatively referenced by — RFC 3520: Session Authorization Policy Element
Normatively referenced by — RFC 4765: The Intrusion Detection Message Exchange Format (IDMEF)
Normatively referenced by — RFC 5776: Use of Timed Efficient Stream Loss-Tolerant Authentication (TESLA) in the Asynchronous Layered Coding (ALC) and NACK-Oriented Reliable Multicast (NORM) Protocols
Normatively referenced by — RFC 9327: Control Messages Protocol for Use with Network Time Protocol Version 4
Informatively referenced by — RFC 3550: RTP: A Transport Protocol for Real-Time Applications
Informatively referenced by — RFC 2616: Hypertext Transfer Protocol -- HTTP/1.1
Informatively referenced by — RFC 4566: SDP: Session Description Protocol
Informatively referenced by — RFC 5322: Internet Message Format
Informatively referenced by — RFC 2327: SDP: Session Description Protocol
Informatively referenced by — RFC 2330: Framework for IP Performance Metrics
Informatively referenced by — RFC 3118: Authentication for DHCP Messages
Informatively referenced by — RFC 2535: Domain Name System Security Extensions
Informatively referenced by — RFC 2679: A One-way Delay Metric for IPPM
Informatively referenced by — RFC 2068: Hypertext Transfer Protocol -- HTTP/1.1
Informatively referenced by — RFC 2002: IP Mobility Support
Informatively referenced by — RFC 2681: A Round-trip Delay Metric for IPPM
Informatively referenced by — RFC 5481: Packet Delay Variation Applicability Statement
Informatively referenced by — RFC 5715: A Framework for Loop-Free Convergence
Informatively referenced by — RFC 1831: RPC: Remote Procedure Call Protocol Specification Version 2
Informatively referenced by — RFC 2030: Simple Network Time Protocol (SNTP) Version 4 for IPv4, IPv6 and OSI
Informatively referenced by — RFC 4330: Simple Network Time Protocol (SNTP) Version 4 for IPv4, IPv6 and OSI
Informatively referenced by — RFC 5906: Network Time Protocol Version 4: Autokey Specification
Informatively referenced by — RFC 5153: IP Flow Information Export (IPFIX) Implementation Guidelines
Informatively referenced by — RFC 5580: Carrying Location Objects in RADIUS and Diameter
Informatively referenced by — RFC 2324: Hyper Text Coffee Pot Control Protocol (HTCPCP/1.0)
Informatively referenced by — RFC 4442: Bootstrapping Timed Efficient Stream Loss-Tolerant Authentication (TESLA)
Informatively referenced by — RFC 1361: Simple Network Time Protocol (SNTP)
Informatively referenced by — RFC 1589: A Kernel Model for Precision Timekeeping
Informatively referenced by — RFC 2896: Remote Network Monitoring MIB Protocol Identifier Macros
Informatively referenced by — RFC 3108: Conventions for the use of the Session Description Protocol (SDP) for ATM Bearer Connections
Informatively referenced by — RFC 5197: On the Applicability of Various Multimedia Internet KEYing (MIKEY) Modes and Extensions
Informatively referenced by — RFC 9557: Date and Time on the Internet: Timestamps with Additional Information
Informatively referenced by — RFC 1533: DHCP Options and BOOTP Vendor Extensions
Informatively referenced by — RFC 1769: Simple Network Time Protocol (SNTP)
Informatively referenced by — RFC 2626: The Internet and the Millennium Problem (Year 2000)
Informatively referenced by — RFC 2783: Pulse-Per-Second API for UNIX-like Operating Systems, Version 1.0
Informatively referenced by — RFC 4707: Netnews Administration System (NAS)
Informatively referenced by — RFC 9249: A YANG Data Model for NTP