IPsec
Internet Protocol Security
Network Layer — Security & VPN
Protocol Overview
Full Name
Internet Protocol Security
Abbreviation
IPsec
OSI Layer
Network Layer
Category
Security & VPN
Default Port
500, 4500
RFC
RFC 4301
About IPsec
Suite of protocols securing IP communications through authentication (AH) and encryption (ESP). Used in site-to-site VPNs and IKEv2.
Network Layer
Security & VPN
Port 500, 4500
Standards Reference
IPsec is defined in RFC 4301, published by the Internet Engineering Task Force (IETF). RFCs are the official standards documents for internet protocols and are freely available for public review.