LISP EID Anonymity
draft-farinacci-lisp-eid-anonymity-01

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Last updated 2016-10-31
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Network Working Group                                       D. Farinacci
Internet-Draft                                               lispers.net
Intended status: Experimental                          P. Pillay-Esnault
Expires: May 4, 2017                                 Huawei Technologies
                                                        October 31, 2016

                           LISP EID Anonymity
                 draft-farinacci-lisp-eid-anonymity-01

Abstract

   This specification will describe how ephemeral LISP EIDs can be used
   to create source anonymity.  The idea makes use of frequently
   changing EIDs much like how a credit-card system uses a different
   credit-card numbers for each transaction.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in [RFC2119].

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on May 4, 2017.

Copyright Notice

   Copyright (c) 2016 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

Farinacci & Pillay-Esnault Expires May 4, 2017                  [Page 1]
Internet-Draft             LISP EID Anonymity               October 2016

   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Definition of Terms . . . . . . . . . . . . . . . . . . . . .   3
   3.  Overview  . . . . . . . . . . . . . . . . . . . . . . . . . .   3
   4.  Design Details  . . . . . . . . . . . . . . . . . . . . . . .   4
   5.  Interworking Considerations . . . . . . . . . . . . . . . . .   4
   6.  Multicast Considerations  . . . . . . . . . . . . . . . . . .   5
   7.  Performance Improvements  . . . . . . . . . . . . . . . . . .   5
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .   5
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   5
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .   6
     10.1.  Normative References . . . . . . . . . . . . . . . . . .   6
     10.2.  Informative References . . . . . . . . . . . . . . . . .   7
   Appendix A.  Acknowledgments  . . . . . . . . . . . . . . . . . .   7
   Appendix B.  Document Change Log  . . . . . . . . . . . . . . . .   8
     B.1.  Changes to draft-farinacci-lisp-eid-anonymity-01  . . . .   8
     B.2.  Changes to draft-farinacci-lisp-eid-anonymity-00  . . . .   8
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   8

1.  Introduction

   The LISP architecture [RFC6830] specifies two namespaces, End-Point
   IDs (EIDs) and Routing Locators (RLOCs).  An EID identifies a node in
   the network and the RLOC indicates the EID's topological location.
   Typically EIDs are globally unique so a end-node system can connect
   to any other end-node system on the Internet.  Privately used EIDs
   are allowed when scoped within a VPN but must always be unique within
   that scope.  Therefore, address allocation is required by network
   administration to avoid address collisions or duplicate address use.
   In a multiple namespace architecture like LISP, typically the EID
   will stay fixed while the RLOC can change.  This occurs when the EID
   is mobile or when the LISP site the EID resides in changes its
   connection to the Internet.

   LISP creates the opportunity where EIDs are fixed and won't change.
   This can create a privacy problem more so than what we have on the
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