I2NSF Network Security Function-Facing Interface YANG Data Model
draft-ietf-i2nsf-nsf-facing-interface-dm-08
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Last updated 2019-12-03 (latest revision 2019-11-04)
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I2NSF Working Group                                               J. Kim
Internet-Draft                                                  J. Jeong
Intended status: Standards Track                 Sungkyunkwan University
Expires: May 7, 2020                                             J. Park
                                                                    ETRI
                                                                S. Hares
                                                                  Q. Lin
                                                                  Huawei
                                                        November 4, 2019

    I2NSF Network Security Function-Facing Interface YANG Data Model
              draft-ietf-i2nsf-nsf-facing-interface-dm-08

Abstract

   This document defines a YANG data model for configuring security
   policy rules on Network Security Functions (NSF) in the Interface to
   Network Security Functions (I2NSF) framework.  The YANG data model in
   this document corresponds to the information model for NSF-Facing
   Interface in the I2NSF framework.

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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   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 May 7, 2020.

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

Kim, et al.                Expires May 7, 2020                  [Page 1]
Internet-Draft    NSF-Facing Interface YANG Data Model     November 2019

   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.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .   3
   3.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
     3.1.  Tree Diagrams . . . . . . . . . . . . . . . . . . . . . .   4
   4.  YANG Tree Diagram . . . . . . . . . . . . . . . . . . . . . .   4
     4.1.  General I2NSF Security Policy Rule  . . . . . . . . . . .   4
     4.2.  Event Clause  . . . . . . . . . . . . . . . . . . . . . .   6
     4.3.  Condition Clause  . . . . . . . . . . . . . . . . . . . .   7
     4.4.  Action Clause . . . . . . . . . . . . . . . . . . . . . .  14
     4.5.  I2NSF Internet Key Exchange . . . . . . . . . . . . . . .  15
   5.  YANG Data Module  . . . . . . . . . . . . . . . . . . . . . .  15
     5.1.  I2NSF NSF-Facing Interface YANG Data Module . . . . . . .  15
   6.  XML Configuration Examples of Low-Level Security Policy Rules  86
     6.1.  Security Requirement 1: Block SNS Access during Business
           Hours . . . . . . . . . . . . . . . . . . . . . . . . . .  86
     6.2.  Security Requirement 2: Block Malicious VoIP/VoLTE
           Packets Coming to a Company . . . . . . . . . . . . . . .  89
     6.3.  Security Requirement 3: Mitigate HTTP and HTTPS Flood
           Attacks on a Company Web Server . . . . . . . . . . . . .  92
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  95
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  96
   9.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  96
   10. Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  96
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  97
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  97
     11.2.  Informative References . . . . . . . . . . . . . . . . .  99
   Appendix A.  Changes from draft-ietf-i2nsf-nsf-facing-interface-
                dm-07  . . . . . . . . . . . . . . . . . . . . . . . 100
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . . 100

1.  Introduction

   This document defines a YANG [RFC6020][RFC7950] data model for
   security policy rule configuration of Network Security Functions
   (NSF).  The YANG data model corresponds to the information model
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