RFC 2407 (rfc2407) - Page 2 of 32
The Internet IP Security Domain of Interpretation for ISAKMP
Alternative Format: Original Text Document
RFC 2407 IP Security Domain of Interpretation November 1998
2. Introduction
Within ISAKMP, a Domain of Interpretation is used to group related
protocols using ISAKMP to negotiate security associations. Security
protocols sharing a DOI choose security protocol and cryptographic
transforms from a common namespace and share key exchange protocol
identifiers. They also share a common interpretation of DOI-specific
payload data content, including the Security Association and
Identification payloads.
Overall, ISAKMP places the following requirements on a DOI
definition:
o define the naming scheme for DOI-specific protocol identifiers
o define the interpretation for the Situation field
o define the set of applicable security policies
o define the syntax for DOI-specific SA Attributes (Phase II)
o define the syntax for DOI-specific payload contents
o define additional Key Exchange types, if needed
o define additional Notification Message types, if needed
The remainder of this document details the instantiation of these
requirements for using the IP Security (IPSEC) protocols to provide
authentication, integrity, and/or confidentiality for IP packets sent
between cooperating host systems and/or firewalls.
For a description of the overall IPSEC architecture, see [ARCH],
[AH], and [ESP].
3. Terms and Definitions
The keywords MUST, MUST NOT, REQUIRED, SHALL, SHALL NOT, SHOULD,
SHOULD NOT, RECOMMENDED, MAY, and OPTIONAL, when they appear in this
document, are to be interpreted as described in [RFC 2119].
4.1 IPSEC Naming Scheme
Within ISAKMP, all DOI's must be registered with the IANA in the
"Assigned Numbers" RFC [STD-2]. The IANA Assigned Number for the
Internet IP Security DOI (IPSEC DOI) is one (1). Within the IPSEC
DOI, all well-known identifiers MUST be registered with the IANA
under the IPSEC DOI. Unless otherwise noted, all tables within this
document refer to IANA Assigned Numbers for the IPSEC DOI. See
Section 6 for further information relating to the IANA registry for
the IPSEC DOI.
All multi-octet binary values are stored in network byte order.
Piper Standards Track