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SAVI Solution for DHCP
draft-ietf-savi-dhcp-29

Document type: Active Internet-Draft (savi WG)
Document stream: IETF
Last updated: 2014-08-08 (latest revision 2014-07-21)
Intended RFC status: Proposed Standard
Other versions: plain text, pdf, html

IETF State: WG Document
Consensus: Yes
Document shepherd: Jean-Michel Combes
Shepherd Write-Up: Last changed 2014-07-23

IESG State: IESG Evaluation
IANA Review State: IANA OK - No Actions Needed
IANA Action State: None
(Needs a YES. Has a DISCUSS. Needs 9 more YES or NO OBJECTION positions to pass.)
Responsible AD: Ted Lemon
IESG Note: Jean-Michel Combes (jeanmichel.combes@gmail.com) is the Document Shepherd.
Send notices to: savi-chairs@tools.ietf.org, draft-ietf-savi-dhcp@tools.ietf.org

SAVI                                                               J. Bi
Internet-Draft                                                     J. Wu
Intended status: Standards Track                                  G. Yao
Expires: January 23, 2015                                 Tsinghua Univ.
                                                                F. Baker
                                                                   Cisco
                                                           July 22, 2014

                         SAVI Solution for DHCP
                        draft-ietf-savi-dhcp-29

Abstract

   This document specifies the procedure for creating a binding between
   a DHCPv4/DHCPv6 assigned IP address and a binding anchor on a SAVI
   (Source Address Validation Improvements) device.  The bindings set up
   by this procedure is used to filter out packets with forged source IP
   address in DHCP scenario.  This mechanism is proposed as a complement
   to ingress filtering to provide finer-grained source IP address
   validation.

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 January 23, 2015.

Copyright Notice

   Copyright (c) 2014 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

Bi, et al.              Expires January 23, 2015                [Page 1]
Internet-Draft                  SAVI DHCP                      July 2014

   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.

   This document may contain material from IETF Documents or IETF
   Contributions published or made publicly available before November
   10, 2008.  The person(s) controlling the copyright in some of this
   material may not have granted the IETF Trust the right to allow
   modifications of such material outside the IETF Standards Process.
   Without obtaining an adequate license from the person(s) controlling
   the copyright in such materials, this document may not be modified
   outside the IETF Standards Process, and derivative works of it may
   not be created outside the IETF Standards Process, except to format
   it for publication as an RFC or to translate it into languages other
   than English.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .   4
   3.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   4.  Deployment Scenario and Configuration . . . . . . . . . . . .   7
     4.1.  Elements and Scenario . . . . . . . . . . . . . . . . . .   7
     4.2.  Attribute . . . . . . . . . . . . . . . . . . . . . . . .   9
       4.2.1.  Trust Attribute . . . . . . . . . . . . . . . . . . .  10
       4.2.2.  DHCP-Trust Attribute  . . . . . . . . . . . . . . . .  10
       4.2.3.  DHCP-Snooping Attribute . . . . . . . . . . . . . . .  11
       4.2.4.  Data-Snooping Attribute . . . . . . . . . . . . . . .  11
       4.2.5.  Validating Attribute  . . . . . . . . . . . . . . . .  11
       4.2.6.  Table of Mutual Exclusions  . . . . . . . . . . . . .  12
     4.3.  Perimeter . . . . . . . . . . . . . . . . . . . . . . . .  13
       4.3.1.  SAVI-DHCP Perimeter Overview  . . . . . . . . . . . .  13
       4.3.2.  SAVI-DHCP Perimeter Configuration Guideline . . . . .  13
       4.3.3.  On the Placement of DHCP Server/Relay . . . . . . . .  14
       4.3.4.  An Alternative Deployment . . . . . . . . . . . . . .  15
       4.3.5.  Considerations on Binding Anchor  . . . . . . . . . .  16
     4.4.  Other Device Configuration  . . . . . . . . . . . . . . .  17
   5.  Binding State Table (BST) . . . . . . . . . . . . . . . . . .  17
   6.  DHCP Snooping Process . . . . . . . . . . . . . . . . . . . .  18

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