Software-Defined Networking (SDN)-based IPsec Flow Protection
draft-ietf-i2nsf-sdn-ipsec-flow-protection-07
Document Type Active Internet-Draft (i2nsf WG)
Last updated 2019-08-05
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: February 6, 2020                           F. Pereniguez-Garcia
                                               University Defense Center
                                                          August 5, 2019

     Software-Defined Networking (SDN)-based IPsec Flow Protection
             draft-ietf-i2nsf-sdn-ipsec-flow-protection-07

Abstract

   This document describes how providing IPsec-based flow protection by
   means of a Software-Defined Network (SDN) controller (aka.  Security
   Controller) and establishes the requirements to support this service.
   It considers two main well-known scenarios in IPsec: (i) gateway-to-
   gateway and (ii) host-to-host.  The SDN-based service described in
   this document allows the distribution and monitoring of IPsec
   information from a Security Controller to one or several flow-based
   Network Security Function (NSF).  The NSFs implement IPsec to protect
   data traffic between network resources.

   The document focuses on the NSF Facing Interface by providing models
   for configuration and state data required to allow the Security
   Controller to configure the IPsec databases (SPD, SAD, PAD) and IKEv2
   to establish 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
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   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on February 6, 2020.

Marin-Lopez, et al.     Expires February 6, 2020                [Page 1]
Internet-Draft  SDN-based IPsec Flow Protection Services     August 2019

Copyright Notice

   Copyright (c) 2019 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
   carefully, as they describe your rights and restrictions with respect
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   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.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .   4
   3.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   5
   4.  Objectives  . . . . . . . . . . . . . . . . . . . . . . . . .   6
   5.  SDN-based IPsec management description  . . . . . . . . . . .   6
     5.1.  IKE case: IKE/IPsec in the NSF  . . . . . . . . . . . . .   6
       5.1.1.  Interface Requirements for IKE case . . . . . . . . .   7
     5.2.  IKE-less case: IPsec (no IKEv2) in the NSF. . . . . . . .   7
       5.2.1.  Interface Requirements for IKE-less case  . . . . . .   8
     5.3.  IKE case vs IKE-less case . . . . . . . . . . . . . . . .   9
       5.3.1.  Rekeying process. . . . . . . . . . . . . . . . . . .  10
       5.3.2.  NSF state loss. . . . . . . . . . . . . . . . . . . .  12
       5.3.3.  NAT Traversal . . . . . . . . . . . . . . . . . . . .  12
       5.3.4.  NSF Discovery . . . . . . . . . . . . . . . . . . . .  13
   6.  YANG configuration data models  . . . . . . . . . . . . . . .  13
     6.1.  IKE case model  . . . . . . . . . . . . . . . . . . . . .  14
     6.2.  IKE-less case model . . . . . . . . . . . . . . . . . . .  17
   7.  Use cases examples  . . . . . . . . . . . . . . . . . . . . .  20
     7.1.  Host-to-host or gateway-to-gateway under the same
           Security Controller . . . . . . . . . . . . . . . . . . .  20
     7.2.  Host-to-host or gateway-to-gateway under different
           Security Controllers  . . . . . . . . . . . . . . . . . .  24
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  26
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  27
     9.1.  IKE case  . . . . . . . . . . . . . . . . . . . . . . . .  28
     9.2.  IKE-less case . . . . . . . . . . . . . . . . . . . . . .  29
     9.3.  YANG modules  . . . . . . . . . . . . . . . . . . . . . .  29
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