I2NSF Network Security Function-Facing Interface YANG Data Model
draft-ietf-i2nsf-nsf-facing-interface-dm-11
Document Type Active Internet-Draft (i2nsf WG)
Authors Jinyong Kim  , Jaehoon Jeong  , Park Jung-Soo  , Susan Hares  , Qiushi Lin 
Last updated 2021-02-02
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I2NSF Working Group                                          J. Kim, Ed.
Internet-Draft                                             J. Jeong, Ed.
Intended status: Standards Track                 Sungkyunkwan University
Expires: August 6, 2021                                          J. Park
                                                                    ETRI
                                                                S. Hares
                                                                  Q. Lin
                                                                  Huawei
                                                        February 2, 2021

    I2NSF Network Security Function-Facing Interface YANG Data Model
              draft-ietf-i2nsf-nsf-facing-interface-dm-11

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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   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 August 6, 2021.

Copyright Notice

   Copyright (c) 2021 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 August 6, 2021                 [Page 1]
Internet-Draft    NSF-Facing Interface YANG Data Model     February 2021

   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.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  YANG Tree Diagram . . . . . . . . . . . . . . . . . . . . . .   3
     3.1.  General I2NSF Security Policy Rule  . . . . . . . . . . .   3
     3.2.  Event Clause  . . . . . . . . . . . . . . . . . . . . . .   5
     3.3.  Condition Clause  . . . . . . . . . . . . . . . . . . . .   6
     3.4.  Action Clause . . . . . . . . . . . . . . . . . . . . . .  12
   4.  YANG Data Model of NSF-Facing Interface . . . . . . . . . . .  13
     4.1.  YANG Module of NSF-Facing Interface . . . . . . . . . . .  14
   5.  XML Configuration Examples of Low-Level Security Policy Rules  85
     5.1.  Security Requirement 1: Block Social Networking Service
           (SNS) Access during Business Hours  . . . . . . . . . . .  85
     5.2.  Security Requirement 2: Block Malicious VoIP/VoLTE
           Packets Coming to a Company . . . . . . . . . . . . . . .  89
     5.3.  Security Requirement 3: Mitigate HTTP and HTTPS Flood
           Attacks on a Company Web Server . . . . . . . . . . . . .  92
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  95
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  95
   8.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  96
   9.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  97
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  98
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  98
     10.2.  Informative References . . . . . . . . . . . . . . . . . 101
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . . 101

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 in this document is based on the
   information model in [I-D.ietf-i2nsf-capability-data-model] for the
   NSF-Facing Interface in the Interface to Network Security Functions
   (I2NSF) architecture [RFC8329].  The YANG data model in this document
   focuses on security policy configuration for generic network security
   functions (e.g., firewall, web filter, and Distributed-Denial-of-
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