Security Parameters Index (SPI) Parameters

Last Updated

  • 2010-04-28

Available Formats

Security Parameters Index (SPI)

Registration Procedure(s)

  • RFC Required

Reference

  • RFC 1826: IP Authentication Header
  • RFC 2402: IP Authentication Header
  • RFC 2406: IP Encapsulating Security Payload (ESP)
  • RFC 4302: IP Authentication Header
  • RFC 4303: IP Encapsulating Security Payload (ESP)

Note

The Security Parameters Index is a 32-bit number used to identify the security association of a datagram in certain security procedures RFC 1826; RFC 1827. The first 256 SPI values are assigned by the IANA and listed here.

Available Formats

Number Description Reference
0 Reserved - Used to indicate that no security association has been established RFC 4302; RFC 4303
1 SKIP Tom Markson
2 WESP RFC 5840
3-255 Unassigned

Contact Information

Name Contact URI Last Updated
Tom Markson markson&osmosys.incog.com 1995-08