| 768 | User Datagram ProtocolJ. Postel | Internet Standard | August 1980 |
| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 2460 | Internet Protocol, Version 6 (IPv6) SpecificationS. Deering, R. Hinden · obsoleted by RFC 8200 | Draft Standard | December 1998 |
| 2474 | Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 HeadersK. Nichols, S. Blake, F. Baker, D. Black | Proposed Standard | December 1998 |
| 2914 | Congestion Control PrinciplesS. Floyd | Best Current Practice | September 2000 |
| 3032 | MPLS Label Stack EncodingE. Rosen, D. Tappan, G. Fedorkow, Y. Rekhter, D. Farinacci, T. Li, A. Conta | Proposed Standard | January 2001 |
| 4023 | Encapsulating MPLS in IP or Generic Routing Encapsulation (GRE)T. Worster, Y. Rekhter, E. Rosen, Ed. | Proposed Standard | March 2005 |
| 4301 | Security Architecture for the Internet ProtocolS. Kent, K. Seo | Proposed Standard | December 2005 |
| 4817 | Encapsulation of MPLS over Layer 2 Tunneling Protocol Version 3M. Townsley, C. Pignataro, S. Wainner, T. Seely, J. Young | Proposed Standard | March 2007 |
| 5332 | MPLS Multicast EncapsulationsT. Eckert, E. Rosen, Ed., R. Aggarwal, Y. Rekhter | Proposed Standard | August 2008 |
| 5405 | Unicast UDP Usage Guidelines for Application DesignersL. Eggert, G. Fairhurst · obsoleted by RFC 8085 | Best Current Practice | November 2008 |
| 5640 | Load-Balancing for Mesh SoftwiresC. Filsfils, P. Mohapatra, C. Pignataro | Proposed Standard | August 2009 |
| 5741 | RFC Streams, Headers, and BoilerplatesL. Daigle, Ed., O. Kolkman, Ed., IAB · obsoleted by RFC 7841 | Informational | December 2009 |
| 6347 | Datagram Transport Layer Security Version 1.2E. Rescorla, N. Modadugu · obsoleted by RFC 9147 | Proposed Standard | January 2012 |
| 6438 | Using the IPv6 Flow Label for Equal Cost Multipath Routing and Link Aggregation in TunnelsB. Carpenter, S. Amante | Proposed Standard | November 2011 |
| 6935 | IPv6 and UDP Checksums for Tunneled PacketsM. Eubanks, P. Chimento, M. Westerlund | Proposed Standard | April 2013 |
| 6936 | Applicability Statement for the Use of IPv6 UDP Datagrams with Zero ChecksumsG. Fairhurst, M. Westerlund | Proposed Standard | April 2013 |