The following standards and protocols are associated with the IPsec VPN:
- RFC 4301: Security Architecture for the Internet Protocol
- RFC 2403: The Use of HMAC-MD5-96 within ESP and AH
- RFC 2409: The Internet Key Exchange (IKE)
- RFC 2857: The Use of HMAC-RIPEMD-160-96 within ESP and AH
- RFC 3566: The AES-XCBC-MAC-96 Algorithm and its use with IPsec
- RFC 3625: More Modular Exponential (MODP) Diffie-Hellman groups for Internet Key Exchange (IKE)
- RFC 3664: The AES-XCBC-PRF-128 Algorithm for the Internet Key Exchange Protocol (IKE)
- RFC 3706: A Traffic-Based Method of Detecting Dead Internet Key Exchange (IKE) Peers
- RFC 3748: Extensible Authentication Protocol (EAP)
- RFC 3947: Negotiation of NAT-Traversal in the IKE
- RFC 4109: Algorithms for Internet Key Exchange version 1 (IKEv1)
- RFC 3948: UDP Encapsulation of IPsec ESP Packets
- RFC 4305: Cryptographic Algorithm Implementation Requirements for Encapsulating Security Payload (ESP) and Authentication Header (AH)
- RFC 4306: Internet Key Exchange (IKEv2) Protocol
- RFC 4307: Cryptographic Algorithms for Use in the Internet Key Exchange Version 2 (IKEv2)
- RFC 4322: Opportunistic Encryption using the Internet Key Exchange (IKE)
- RFC 4359: The Use of RSA/SHA-1 Signatures within Encapsulating Security Payload (ESP) and Authentication Header (AH)
- RFC 4434: The AES-XCBC-PRF-128 Algorithm for the Internet Key Exchange Protocol (IKE)
- RFC 4478: Repeated Authentication in Internet Key Exchange (IKEv2)
- RFC 5996: Internet Key Exchange Protocol Version 2 (IKEv2)