RFC 2072 (rfc2072) - Page 1 of 48
Router Renumbering Guide
Alternative Format: Original Text Document
Network Working Group H. Berkowitz
Request for Comments: 2072 PSC International
Category: Informational January 1997
Router Renumbering Guide
Status of this Memo
This memo provides information for the Internet community. This memo
does not specify an Internet standard of any kind. Distribution of
this memo is unlimited.
Abstract
IP addresses currently used by organizations are likely to undergo
changes in the near to moderate term. Change can become necessary
for a variety of reasons, including enterprise reorganization,
physical moves of equipment, new strategic relationships, changes in
Internet Service Providers (ISP), new applications, and the needs of
global Internet connectivity. Good IP address management may in
general simplify continuing system administration; a good renumbering
plan is also a good numbering plan. Most actions taken to ease
future renumbering will ease routine network administration.
Routers are the components that interconnect parts of the IP address
space identified by unique prefixes. Obviously, they will be
impacted by renumbering. Other interconnection devices, such as
bridges, layer 2 switches (i.e., specialized bridges), and ATM
switches may be affected by renumbering. The interactions of these
lower-layer interconnection devices with routers must be considered
as part of a renumbering effort.
Routers interact with numerous network infrastructure servers,
including DNS and SNMP. These interactions, not just the pure
addressing and routing structure, must be considered as part of
router renumbering.
Berkowitz Informational