draft-ietf-dhc-problem-statement-of-mredhcpv6-03.txt   draft-ietf-dhc-problem-statement-of-mredhcpv6-04.txt 
Dynamic Host Configuration (DHC) G. Ren Dynamic Host Configuration (DHC) G. Ren
Internet-Draft L. He Internet-Draft L. He
Intended status: Informational Y. Liu Intended status: Informational Y. Liu
Expires: August 7, 2020 Tsinghua University Expires: August 15, 2020 Tsinghua University
February 4, 2020 February 12, 2020
DHCPv6 Extension Survey and Considerations DHCPv6 Extension Survey and Considerations
draft-ietf-dhc-problem-statement-of-mredhcpv6-03 draft-ietf-dhc-problem-statement-of-mredhcpv6-04
Abstract Abstract
The manageability, security, privacy protection, and traceability of The manageability, security, privacy protection, and traceability of
networks can be supported by extending the DHCPv6 protocol according networks can be supported by extending the DHCPv6 protocol according
to requirements. This document provides a survey of current to requirements. This document provides a survey of current
extension practices and typical DHCP server software on extensions, extension practices and typical DHCP server software on extensions,
defines a DHCPv6 general model, discusses some extension points, and defines a DHCPv6 general model, discusses some extension points, and
presents extension cases. presents extension cases.
skipping to change at page 1, line 36 skipping to change at page 1, line 36
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/. Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on August 7, 2020. This Internet-Draft will expire on August 15, 2020.
Copyright Notice Copyright Notice
Copyright (c) 2020 IETF Trust and the persons identified as the Copyright (c) 2020 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of (https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
skipping to change at page 5, line 19 skipping to change at page 5, line 19
This section elaborates multi-requirement extensions for DHCPv6. This section elaborates multi-requirement extensions for DHCPv6.
Section 4.1 describes the general model of DHCPv6, while Section 4.2 Section 4.1 describes the general model of DHCPv6, while Section 4.2
analyzes the extension points and requirements. analyzes the extension points and requirements.
4.1. DHCPv6 General Model 4.1. DHCPv6 General Model
Figure 1 summarizes the DHCPv6 general model and its possible Figure 1 summarizes the DHCPv6 general model and its possible
extensions: messages, options, message processing functions, and extensions: messages, options, message processing functions, and
address generation mechanisms. address generation mechanisms.
+-----------------+ +----------------+ +-----------------+ +----------------+
| DHCPv6 client | DHCP messages | DHCPv6 relay | | DHCPv6 client | DHCP messages | DHCPv6 relay |
| +-------------+ | with options | +------------+ | External inputs | +-------------+ | with options | +------------+ | External inputs
| | Message | |<----------------->| | Message | |<---------------- | | Message | |<---------------->| | Message | |<----------------
| | processing | | | | relaying | | e.g., RADIUS | | processing | | | | relaying | | e.g., RADIUS
| | functions | | | | functions | | option [RFC7037] | | functions | | | | functions | | option [RFC7037]
| +-------------+ | | +------------+ | | +-------------+ | | +------------+ |
+-----------------+ +----------------+ +-----------------+ +----------------+
^ ^
-----------------+ +----------------+
DHCP messages | DHCP messages |
with options | with options |
| |
V V
+-----------------+ +----------------------------+ +-----------------+ +----------------------------+
| | Extended | DHCPv6 server | | | Extended | DHCPv6 server |
| | messages | +-----------+ +----------+ | | | messages | +-----------+ +----------+ |
|External entities|<------------->| | Address | | Message | | |External entities|<------------->| | Address | | Message | |
| | e.g., Active | | generation| |processing| | | | e.g., Active | | generation| |processing| |
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