| 4309 | Using Advanced Encryption Standard (AES) CCM Mode with IPsec Encapsulating Security Payload (ESP)R. Housley | Proposed Standard | December 2005 |
| 4308 | Cryptographic Suites for IPsecP. Hoffman | Proposed Standard | December 2005 |
| 4307 | Cryptographic Algorithms for Use in the Internet Key Exchange Version 2 (IKEv2)J. Schiller · obsoleted by RFC 8247 | Proposed Standard | December 2005 |
| 4306 | Internet Key Exchange (IKEv2) ProtocolC. Kaufman, Ed. · obsoleted by RFC 5996 | Proposed Standard | December 2005 |
| 4305 | Cryptographic Algorithm Implementation Requirements for Encapsulating Security Payload (ESP) and Authentication Header (AH)D. Eastlake 3rd · obsoleted by RFC 4835 | Proposed Standard | December 2005 |
| 4304 | Extended Sequence Number (ESN) Addendum to IPsec Domain of Interpretation (DOI) for Internet Security Association and Key Management Protocol (ISAKMP)S. Kent | Proposed Standard | December 2005 |
| 4303 | IP Encapsulating Security Payload (ESP)S. Kent | Proposed Standard | December 2005 |
| 4302 | IP Authentication HeaderS. Kent | Proposed Standard | December 2005 |
| 4301 | Security Architecture for the Internet ProtocolS. Kent, K. Seo | Proposed Standard | December 2005 |
| 4106 | The Use of Galois/Counter Mode (GCM) in IPsec Encapsulating Security Payload (ESP)J. Viega, D. McGrew | Proposed Standard | June 2005 |
| 3948 | UDP Encapsulation of IPsec ESP PacketsA. Huttunen, B. Swander, V. Volpe, L. DiBurro, M. Stenberg | Proposed Standard | January 2005 |
| 3947 | Negotiation of NAT-Traversal in the IKET. Kivinen, B. Swander, A. Huttunen, V. Volpe | Proposed Standard | January 2005 |
| 3715 | IPsec-Network Address Translation (NAT) Compatibility RequirementsB. Aboba, W. Dixon | Informational | March 2004 |
| 3706 | A Traffic-Based Method of Detecting Dead Internet Key Exchange (IKE) PeersG. Huang, S. Beaulieu, D. Rochefort | Informational | February 2004 |
| 3686 | Using Advanced Encryption Standard (AES) Counter Mode With IPsec Encapsulating Security Payload (ESP)R. Housley | Proposed Standard | January 2004 |
| 3664 | The AES-XCBC-PRF-128 Algorithm for the Internet Key Exchange Protocol (IKE)P. Hoffman · obsoleted by RFC 4434 | Proposed Standard | January 2004 |
| 3602 | The AES-CBC Cipher Algorithm and Its Use with IPsecS. Frankel, R. Glenn, S. Kelly | Proposed Standard | September 2003 |
| 3566 | The AES-XCBC-MAC-96 Algorithm and Its Use With IPsecS. Frankel, H. Herbert | Proposed Standard | September 2003 |
| 3554 | On the Use of Stream Control Transmission Protocol (SCTP) with IPsecS. Bellovin, J. Ioannidis, A. Keromytis, R. Stewart | Proposed Standard | July 2003 |
| 3526 | More Modular Exponential (MODP) Diffie-Hellman groups for Internet Key Exchange (IKE)T. Kivinen, M. Kojo | Proposed Standard | May 2003 |
| 2857 | The Use of HMAC-RIPEMD-160-96 within ESP and AHA. Keromytis, N. Provos | Proposed Standard | June 2000 |
| 2451 | The ESP CBC-Mode Cipher AlgorithmsR. Pereira, R. Adams | Proposed Standard | November 1998 |
| 2412 | The OAKLEY Key Determination ProtocolH. Orman | Informational | November 1998 |
| 2411 | IP Security Document RoadmapR. Thayer, N. Doraswamy, R. Glenn · obsoleted by RFC 6071 | Informational | November 1998 |
| 2410 | The NULL Encryption Algorithm and Its Use With IPsecR. Glenn, S. Kent | Proposed Standard | November 1998 |
| 2409 | The Internet Key Exchange (IKE)D. Harkins, D. Carrel · obsoleted by RFC 4306 | Historic | November 1998 |
| 2408 | Internet Security Association and Key Management Protocol (ISAKMP)D. Maughan, M. Schertler, M. Schneider, J. Turner · obsoleted by RFC 4306 | Historic | November 1998 |
| 2407 | The Internet IP Security Domain of Interpretation for ISAKMPD. Piper · obsoleted by RFC 4306 | Historic | November 1998 |
| 2406 | IP Encapsulating Security Payload (ESP)S. Kent, R. Atkinson · obsoleted by RFC 4303, RFC 4305 | Proposed Standard | November 1998 |
| 2405 | The ESP DES-CBC Cipher Algorithm With Explicit IVC. Madson, N. Doraswamy | Proposed Standard | November 1998 |
| 2404 | The Use of HMAC-SHA-1-96 within ESP and AHC. Madson, R. Glenn | Proposed Standard | November 1998 |
| 2403 | The Use of HMAC-MD5-96 within ESP and AHC. Madson, R. Glenn | Proposed Standard | November 1998 |
| 2402 | IP Authentication HeaderS. Kent, R. Atkinson · obsoleted by RFC 4302, RFC 4305 | Proposed Standard | November 1998 |
| 2401 | Security Architecture for the Internet ProtocolS. Kent, R. Atkinson · obsoleted by RFC 4301 | Proposed Standard | November 1998 |
| 2104 | HMAC: Keyed-Hashing for Message AuthenticationH. Krawczyk, M. Bellare, R. Canetti | Informational | February 1997 |
| 2085 | HMAC-MD5 IP Authentication with Replay PreventionM. Oehler, R. Glenn | Proposed Standard | February 1997 |
| 1829 | The ESP DES-CBC TransformP. Karn, P. Metzger, W. Simpson | Proposed Standard | August 1995 |
| 1828 | IP Authentication using Keyed MD5P. Metzger, W. Simpson | Historic | August 1995 |
| 1827 | IP Encapsulating Security Payload (ESP)R. Atkinson · obsoleted by RFC 2406 | Proposed Standard | August 1995 |
| 1826 | IP Authentication HeaderR. Atkinson · obsoleted by RFC 2402 | Proposed Standard | August 1995 |
| 1825 | Security Architecture for the Internet ProtocolR. Atkinson · obsoleted by RFC 2401 | Proposed Standard | August 1995 |