Software-Defined Networking (SDN)-based IPsec Flow Protection
draft-ietf-i2nsf-sdn-ipsec-flow-protection-08
Document Type Active Internet-Draft (i2nsf WG)
Last updated 2020-06-17
Replaces draft-abad-i2nsf-sdn-ipsec-flow-protection
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I2NSF                                                     R. Marin-Lopez
Internet-Draft                                           G. Lopez-Millan
Intended status: Standards Track                    University of Murcia
Expires: December 19, 2020                          F. Pereniguez-Garcia
                                               University Defense Center
                                                           June 17, 2020

     Software-Defined Networking (SDN)-based IPsec Flow Protection
             draft-ietf-i2nsf-sdn-ipsec-flow-protection-08

Abstract

   This document describes how to provide IPsec-based flow protection
   (integrity and confidentiality) by means of an I2NSF Controller.  It
   considers two main well-known scenarios in IPsec: (i) gateway-to-
   gateway and (ii) host-to-host.  The service described in this
   document allows the configuration and monitoring of IPsec information
   from a I2NSF Controller to one or several flow-based Network Security
   Function (NSF) that implement IPsec to protect data traffic.

   The document focuses on the I2NSF NSF-Facing Interface by providing
   YANG data models for configuration and state data required to allow
   the I2NSF Controller to configure the IPsec databases (SPD, SAD, PAD)
   and IKEv2 to establish IPsec Security Associations with a reduced
   intervention of the network administrator.

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
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   Drafts is at https://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 December 19, 2020.

Marin-Lopez, et al.     Expires December 19, 2020               [Page 1]
Internet-Draft       SDN-based IPsec Flow Protection           June 2020

Copyright Notice

   Copyright (c) 2020 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
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .   5
   3.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   5
   4.  SDN-based IPsec management description  . . . . . . . . . . .   6
     4.1.  IKE case: IKEv2/IPsec in the NSF  . . . . . . . . . . . .   6
     4.2.  IKE-less case: IPsec (no IKEv2) in the NSF. . . . . . . .   7
   5.  IKE case vs IKE-less case . . . . . . . . . . . . . . . . . .   9
     5.1.  Rekeying process  . . . . . . . . . . . . . . . . . . . .  10
     5.2.  NSF state loss. . . . . . . . . . . . . . . . . . . . . .  11
     5.3.  NAT Traversal . . . . . . . . . . . . . . . . . . . . . .  11
     5.4.  NSF registration and discovery  . . . . . . . . . . . . .  12
   6.  YANG configuration data models  . . . . . . . . . . . . . . .  13
     6.1.  IKE case model  . . . . . . . . . . . . . . . . . . . . .  13
     6.2.  IKE-less case model . . . . . . . . . . . . . . . . . . .  16
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  20
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  21
     8.1.  IKE case  . . . . . . . . . . . . . . . . . . . . . . . .  22
     8.2.  IKE-less case . . . . . . . . . . . . . . . . . . . . . .  23
     8.3.  YANG modules  . . . . . . . . . . . . . . . . . . . . . .  23
   9.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  25
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  25
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  25
     10.2.  Informative References . . . . . . . . . . . . . . . . .  26
   Appendix A.  Common YANG model for IKE and IKE-less cases . . . .  29
   Appendix B.  YANG model for IKE case  . . . . . . . . . . . . . .  42
   Appendix C.  YANG model for IKE-less case . . . . . . . . . . . .  61
   Appendix D.  XML configuration example for IKE case (gateway-to-
                gateway) . . . . . . . . . . . . . . . . . . . . . .  71
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