RFC Request for Comments in Networking


RFC or Request for Comments is a publication in a series from the principal technical development and standards-setting bodies for the Internet. It contains technical specifications and organizational for Internet and TCP/IP. It is produced by Internet Engineering Task Force or (IETF). Those members of Internet Society (ISOC) can submit RFCs for consideration.

5 Classifications of RFC which is reviewed by different technical groups.

  • Required
  • Recommended
  • Elective
  • Limited Use
  • Not Recommended

3 Stages of Development or maturity levels based on RFC 1310

Standard Tracks  
Proposed Standard stable, well understood, received significant community review
Draft Standard well-understood, quite known stable but require additional field experience
Internet Standard technically matured, widely implemented and beneficial to Internet community

Here are the must read Request for Comments (RFC) that Network Engineers should know related to Internet, Networking and different protocols in Information Technology.

 Protocols RFC Description More Details
IP RFC 791 Internet Protocol https://datatracker.ietf.org/doc/html/rfc791
IP RFC 950 Internet Standard Subnetting Procedure https://datatracker.ietf.org/doc/html/rfc950
IP RFC 1518 An Architecture for IP Address Allocation with CIDR https://datatracker.ietf.org/doc/html/rfc1518
IP RFC 1812 Requirements for IP Version 4 Routers https://datatracker.ietf.org/doc/html/rfc1812
IP RFC 1918 Address Allocation for Private Internets https://datatracker.ietf.org/doc/html/rfc1918
IPv6 RFC 2460 Internet Protocol, Version 6 (IPv6) Specification https://datatracker.ietf.org/doc/html/rfc2460
ICMP RFC 792 Internet Control Message Protocol https://datatracker.ietf.org/doc/html/rfc792
ARP RFC 826 An Ethernet Address Resolution Protocol https://datatracker.ietf.org/doc/html/rfc826
TCP RFC 793 Transmission Control Protocol https://datatracker.ietf.org/doc/html/rfc793
TCP RFC 5681 TCP Congestion Control https://datatracker.ietf.org/doc/html/rfc5681
UDP RFC 768 User Datagram Protocol https://datatracker.ietf.org/doc/html/rfc768
DHCP RFC 2131 Dynamic Host Configuration Protocol https://datatracker.ietf.org/doc/html/rfc2131
OSPFv2 RFC 2328 OSPF Version 2 https://datatracker.ietf.org/doc/html/rfc2328
BGP RFC 2471 A Border Gateway Protocol 4 (BGP-4) https://datatracker.ietf.org/doc/html/rfc4271
SMTP RFC 821 Simple Mail Transfer Protocol https://datatracker.ietf.org/doc/html/rfc821
POP3 RFC 1939 Post Office Protocol v3 https://datatracker.ietf.org/doc/html/rfc1939
SNMP RFC 1157 Simple Network Management Protocol https://datatracker.ietf.org/doc/html/rfc1157
IGMP RFC 1112 Host Extensions for IP Multicasting https://datatracker.ietf.org/doc/html/rfc1112
DNS RFC 1034 Domain Names – Concepts and Facilities https://datatracker.ietf.org/doc/html/rfc1034
DNS RFC 1912 Common DNS Operational and Configuration Error https://datatracker.ietf.org/doc/html/rfc1912
  RFC 1925 The Twelve Networking Truths https://datatracker.ietf.org/doc/html/rfc1925
  RFC 2544 Benchmarking Methodology for Network Interconnect Devices https://datatracker.ietf.org/doc/html/rfc2544
  RFC 2622 Routing Policy Specification Language (RPSL) https://datatracker.ietf.org/doc/html/rfc2622
  RFC 2822 Internet Message Format https://datatracker.ietf.org/doc/html/rfc2822
   RFC 3339  Date and Time on the Internet: Timestamps  https://datatracker.ietf.org/doc/html/rfc3339

Some popular April Fool’s Day RFC

RFC Description More Details
RFC 1149  A Standard for the Transmission of IP Datagrams on Avian Carriers  https://datatracker.ietf.org/doc/html/rfc1149
RFC 2549 IP over Avian Carriers with Quality of Service https://datatracker.ietf.org/doc/html/rfc2549

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