Internet Engineering Task Force S. Bhandari
Internet-Draft G. Halwasia
Intended status: Standards Track S. Gundavelli
Expires: August 22, 2013 Cisco Systems
H. Deng
China Mobile
L. Thiebaut
Alcatel-Lucent
J. Korhonen
Renesas Mobile
February 18, 2013
DHCPv6 class based prefix
draft-bhandari-dhc-class-based-prefix-04
Abstract
This document introduces options to communicate property and
associate metadata with prefixes. It extends DHCPv6 prefix
delegation and address allocation using the metadata for selection of
prefixes and addresses.
Status of this Memo
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This Internet-Draft will expire on August 22, 2013.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Motivation . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1.1. Mobile networks . . . . . . . . . . . . . . . . . . . 4
1.1.2. Home networks . . . . . . . . . . . . . . . . . . . . 4
1.2. Terminology . . . . . . . . . . . . . . . . . . . . . . . 5
1.3. Requirements Language . . . . . . . . . . . . . . . . . . 5
2. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1. Prefix Property and Class Options . . . . . . . . . . . . 5
2.2. Consideration for different DHCPv6 entities . . . . . . . 7
2.2.1. Requesting Router Behavior for IA_PD allocation . . . 7
2.2.2. Delegating Router Behavior for IA_PD allocation . . . 8
2.2.3. DHCPv6 Client Behavior for IA_NA allocation . . . . . 9
2.2.4. DHCPv6 Server Behavior for IA_NA allocation . . . . . 9
2.3. Usage . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.3.1. Class based prefix and IA_NA allocation . . . . . . . 10
2.3.2. Class based prefix and IA_PD allocation . . . . . . . 10
2.3.3. Class based prefix and SLAAC . . . . . . . . . . . . . 10
2.3.4. Class based prefix and applications . . . . . . . . . 11
3. Example Application . . . . . . . . . . . . . . . . . . . . . 11
3.1. Mobile gateway example . . . . . . . . . . . . . . . . . . 11
3.1.1. Class based prefix delegation . . . . . . . . . . . . 12
3.1.2. IPv6 address assignment from class based prefix . . . 13
3.2. Homenet Example . . . . . . . . . . . . . . . . . . . . . 14
3.2.1. Class based prefix delegation to the HGW . . . . . . . 15
3.2.2. IPv6 Assignment to Homenet hosts using stateful
DHCPv6 . . . . . . . . . . . . . . . . . . . . . . . . 16
4. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 16
5. Contributors . . . . . . . . . . . . . . . . . . . . . . . . . 17
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 17
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