<?xml version='1.0' encoding='UTF-8'?>
<?xml-stylesheet type="text/xsl" href="spi-numbers.xsl"?>
<?xml-model href="spi-numbers.rng" schematypens="http://relaxng.org/ns/structure/1.0" ?>
<registry xmlns="http://www.iana.org/assignments" id="spi-numbers">
  <title>Security Parameters Index (SPI) Parameters</title>
  <updated>2010-04-28</updated>
  <registry id="spi-numbers-1">
    <title>Security Parameters Index (SPI)</title>
    <xref type="rfc" data="rfc1826"/>
    <xref type="rfc" data="rfc2402"/>
    <xref type="rfc" data="rfc2406"/>
    <xref type="rfc" data="rfc4302"/>
    <xref type="rfc" data="rfc4303"/>
    <registration_rule>RFC Required</registration_rule>
    <note>The Security Parameters Index is a 32-bit number used to identify the
security association of a datagram in certain security procedures
<xref type="rfc" data="rfc1826"/><xref type="rfc" data="rfc1827"/>.  The first 256 SPI values are assigned by the IANA
and listed here.
    </note>
    <record>
      <number>0</number>
      <description>Reserved  - Used to indicate that no security        
            association has been established</description>
      <xref type="rfc" data="rfc4302"/>
      <xref type="rfc" data="rfc4303"/>
    </record>
    <record>
      <number>1</number>
      <description>SKIP</description>
      <xref type="person" data="Tom_Markson"/>
    </record>
    <record>
      <number>2</number>
      <description>WESP</description>
      <xref type="rfc" data="rfc5840"/>
    </record>
    <record>
      <number>3-255</number>
      <description>Unassigned</description>
    </record>
  </registry>
  <people>
    <person id="Tom_Markson">
      <name>Tom Markson</name>
      <uri>mailto:markson&amp;osmosys.incog.com</uri>
      <updated>1995-08</updated>
    </person>
  </people>
</registry>
