Operational Guidance for IPv6 Deployment in IPv4 Sites using ISATAP
draft-templin-v6ops-isops-17
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Network Working Group F. Templin
Internet-Draft Boeing Research & Technology
Intended status: Informational May 09, 2012
Expires: November 10, 2012
Operational Guidance for IPv6 Deployment in IPv4 Sites using ISATAP
draft-templin-v6ops-isops-17.txt
Abstract
Many end user sites in the Internet today still have predominantly
IPv4 internal infrastructures. These sites range in size from small
home/office networks to large corporate enterprise networks, but
share the commonality that IPv4 provides satisfactory internal
routing and addressing services for most applications. As more and
more IPv6-only services are deployed, however, end user devices
within such sites will increasingly require at least basic IPv6
functionality. This document therefore provides operational guidance
for deployment of IPv6 within predominantly IPv4 sites using the
Intra-Site Automatic Tunnel Addressing Protocol (ISATAP).
Status of this Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on November 10, 2012.
Copyright Notice
Copyright (c) 2012 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
Templin Expires November 10, 2012 [Page 1]
Internet-Draft ISATAP Operational Guidance May 2012
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Enabling IPv6 Services using ISATAP . . . . . . . . . . . . . 3
3. SLAAC Services . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1. Advertising ISATAP Router Behavior . . . . . . . . . . . . 5
3.2. ISATAP Host Behavior . . . . . . . . . . . . . . . . . . . 6
3.3. Reference Operational Scenario - Shared Prefix Model . . . 6
3.4. Reference Operational Scenario - Individual Prefix
Model . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.5. SLAAC Site Administration Guidance . . . . . . . . . . . . 12
3.6. Loop Avoidance . . . . . . . . . . . . . . . . . . . . . . 14
3.7. Interface Identifier Compatibility Considerations . . . . 14
4. Manual Configuration . . . . . . . . . . . . . . . . . . . . . 15
5. Scaling Considerations . . . . . . . . . . . . . . . . . . . . 15
6. Site Renumbering Considerations . . . . . . . . . . . . . . . 16
7. Path MTU Considerations . . . . . . . . . . . . . . . . . . . 16
8. Alternative Approaches . . . . . . . . . . . . . . . . . . . . 17
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 17
10. Security Considerations . . . . . . . . . . . . . . . . . . . 17
11. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 18
12. References . . . . . . . . . . . . . . . . . . . . . . . . . . 18
12.1. Normative References . . . . . . . . . . . . . . . . . . . 18
12.2. Informative References . . . . . . . . . . . . . . . . . . 18
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 20
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1. Introduction
End user sites in the Internet today currently use IPv4 routing and
addressing internally for core operating functions such as web
browsing, filesharing, network printing, e-mail, teleconferencing and
numerous other site-internal networking services. Such sites
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