| 1812 | Requirements for IP Version 4 RoutersF. Baker, Ed. | Proposed Standard | June 1995 |
| 1928 | SOCKS Protocol Version 5M. Leech, M. Ganis, Y. Lee, R. Kuris, D. Koblas, L. Jones | Proposed Standard | March 1996 |
| 1958 | Architectural Principles of the InternetB. Carpenter, Ed. | Informational | June 1996 |
| 2186 | Internet Cache Protocol (ICP), version 2D. Wessels, K. Claffy | Informational | September 1997 |
| 2475 | An Architecture for Differentiated ServicesS. Blake, D. Black, M. Carlson, E. Davies, Z. Wang, W. Weiss | Informational | December 1998 |
| 2543 | SIP: Session Initiation ProtocolM. Handley, H. Schulzrinne, E. Schooler, J. Rosenberg · obsoleted by RFC 3261, RFC 3262, RFC 3263, RFC 3264, RFC 3265 | Proposed Standard | March 1999 |
| 2616 | Hypertext Transfer Protocol -- HTTP/1.1R. Fielding, J. Gettys, J. Mogul, H. Frystyk, L. Masinter, P. Leach, T. Berners-Lee · obsoleted by RFC 7230, RFC 7231, RFC 7232, RFC 7233, RFC 7234, RFC 7235 | Draft Standard | June 1999 |
| 2663 | IP Network Address Translator (NAT) Terminology and ConsiderationsP. Srisuresh, M. Holdrege | Informational | August 1999 |
| 2756 | Hyper Text Caching Protocol (HTCP/0.0)P. Vixie, D. Wessels | Experimental | January 2000 |
| 2765 | Stateless IP/ICMP Translation Algorithm (SIIT)E. Nordmark · obsoleted by RFC 6145 | Proposed Standard | February 2000 |
| 2766 | Network Address Translation - Protocol Translation (NAT-PT)G. Tsirtsis, P. Srisuresh · obsoleted by RFC 4966 | Historic | February 2000 |
| 2775 | Internet TransparencyB. Carpenter | Informational | February 2000 |
| 2979 | Behavior of and Requirements for Internet FirewallsN. Freed | Informational | October 2000 |
| 2983 | Differentiated Services and TunnelsD. Black | Informational | October 2000 |
| 2993 | Architectural Implications of NATT. Hain | Informational | November 2000 |
| 3015 | Megaco Protocol Version 1.0F. Cuervo, N. Greene, A. Rayhan, C. Huitema, B. Rosen, J. Segers · obsoleted by RFC 3525 | Proposed Standard | November 2000 |
| 3022 | Traditional IP Network Address Translator (Traditional NAT)P. Srisuresh, K. Egevang | Informational | January 2001 |
| 3027 | Protocol Complications with the IP Network Address TranslatorM. Holdrege, P. Srisuresh | Informational | January 2001 |
| 3040 | Internet Web Replication and Caching TaxonomyI. Cooper, I. Melve, G. Tomlinson | Informational | January 2001 |
| 3089 | A SOCKS-based IPv6/IPv4 Gateway MechanismH. Kitamura | Informational | April 2001 |
| 3102 | Realm Specific IP: FrameworkM. Borella, J. Lo, D. Grabelsky, G. Montenegro | Experimental | October 2001 |
| 3135 | Performance Enhancing Proxies Intended to Mitigate Link-Related DegradationsJ. Border, M. Kojo, J. Griner, G. Montenegro, Z. Shelby | Informational | June 2001 |
| 3205 | On the use of HTTP as a SubstrateK. Moore · obsoleted by RFC 9205 | Best Current Practice | February 2002 |