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The Role of the Internet Assigned Numbers Authority (IANA)
The Internet Society
supports the role of the IANA and shares the sentiments expressed in the
message below.
In the current dynamic
Internet environment, resulting especially from the potential for new
top level domain names, it is important to understand the role of the
Internet Assigned Numbers Authority (IANA).
The IANA activities
include assigning the unique parameters for protocols (such as TCP port
numbers, or ARP hardware types), managing the IP address space, and managing
domain names.
Through the course
of development of the Internet, IANA has historically played a central
role in the management of the Domain Name System (DNS) to support and
implement the community consensus about the appropriate overall structure
of the system.
The IANA has managed
the root of the DNS to promote stability and robustness. This role is
primarily one of making minor technical decisions about the location of
root nameservers, the qualifications of applicants to manage country code
top level domains, and evaluating any additions to the established generic
top level domains which are proposed by the community.
This role is documented
in various RFCs over time and in the working relationships between the
IANA, the US Government, the Internet Society, and the Internic. These
relationships may be summarized as follows:
The IANA
has been supported by the Defense Advanced Research Projects Agency (DARPA)
for many years. The National Science Foundation (NSF) recognized the role
of the IANA in its Cooperative Agreement that established the Internic.
The Federal Networking Council (FNC) has also recognized the role of the
IANA.
The Internet Society
(ISOC) recognizes the role of the IANA, and explicitly provides for
the coordination of the IANA activities with the Internet Engineering
Task Force (IETF) through the ex-officio participation of the IANA in
the Internet Architecture Board (IAB).
The Internic and
the IANA have a well established pattern of consultation and cooperation
on top level domain matters.
In particular, this
role of the IANA and the cooperation between the IANA and the Internic
are described more specifically as follows:
The IANA
is the name for the function for the allocation and assignment of various
identifiers needed for the operation of the Internet, which function was
assigned by DARPA to the Information Sciences Institute (ISI) of the University
of Southern California pursuant to contracts between DARPA and ISI. Under
the DARPA contracts, ISI (through the IANA function) has the discretionary
authority to delegate portions of this function, and has delegated that
portion of the responsibility concerning some aspects of numeric network
and autonomous system identifiers to an Internet Numbers Registry (IR),
previously performed by SRI International and currently performed by NSI.
See RFC 1174 and Section H.1., NSF Solicitation for Network Information
Services Manager for NSFnet and the NREN ("ISI (as the IANA) ha[s] delegated
to the DISA NIC (currently NSI) the registration of users for the Internet").
ISI and NSI have
cooperated to develop the Internet infrastructure through a system of
"root servers" whose network routing functions are dependent upon central
coordination at the IANA/IR level. See RFC 1174, Section 1.3 ("It is
proposed to retain the centralized IANA and IR functions").
Thus, while some
appear to have attempted to confuse the issue of DNS management by focusing
on who has "authority" over operation of the root zone, this issue is
a red herring and ultimately contributes nothing to the development of
the Internet. Simply stated, IANA and NSI (as operator of the Internic)
have maintained a consultative and cooperative relationship in the management
of the DNS, as was expected and indeed required under the NSF/NSI Cooperative
Agreement. IANA fully expects this cooperation to continue and would be
astounded if NSI were to adopt any policy or take any action inconsistent
with this principle.
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