What is ESP over Fibre Channel?
ESP (Encapsulating Security Payload) is an Internet standard for the authentication and encryption of IP packets.
ESP is defined in RFC 2406: IP Encapsulating Security Payload (ESP).
ESP is widely deployed in IP networks and has been adapted for use in Fibre Channel networks. The IETF iSCSI proposal specifies ESP link authentication and optional encryption.
ESP over Fibre Channel is focused on protecting data in transit throughout the Fibre Channel network. ESP over Fibre Channel does not address the security of data which is stored on the Fibre Channel network.