Yang data model for TACACS+
draft-ietf-opsawg-tacacs-yang-00

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Last updated 2019-07-24 (latest revision 2019-07-23)
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Network Working Group                                           G. Zheng
Internet-Draft                                                   M. Wang
Intended status: Standards Track                                   B. Wu
Expires: January 23, 2020                                         Huawei
                                                           July 22, 2019

                      Yang data model for TACACS+
                    draft-ietf-opsawg-tacacs-yang-00

Abstract

   This document defines a YANG modules that augment the System data
   model defined in the RFC 7317 with TACACS+ client model.  The data
   model of Terminal Access Controller Access Control System Plus
   (TACACS+) client allows the configuration of TACACS+ servers for
   centralized Authentication, Authorization and Accounting.

   The YANG modules in this document conforms to the Network Management
   Datastore Architecture (NMDA) defined in RFC 8342.

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
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   This Internet-Draft will expire on January 23, 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
   carefully, as they describe your rights and restrictions with respect

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   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.  Conventions used in this document . . . . . . . . . . . . . .   3
     2.1.  Tree Diagrams . . . . . . . . . . . . . . . . . . . . . .   3
   3.  TACACS+ Client Model  . . . . . . . . . . . . . . . . . . . .   3
   4.  TACACS+ Client Module . . . . . . . . . . . . . . . . . . . .   5
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  11
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  11
   7.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  12
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  12
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .  12
     8.2.  Informative References  . . . . . . . . . . . . . . . . .  13
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  13

1.  Introduction

   This document defines a YANG modules that augment the System data
   model defined in the [RFC7317] with TACACS+ client model.

   TACACS+ provides Device Administration for routers, network access
   servers and other networked computing devices via one or more
   centralized servers which is defined inthe TACACS+ Protocol.
   [I-D.ietf-opsawg-tacacs]

   The System Management Model [RFC7317] defines two YANG features to
   support local or RADIUS authentication:

   o  User Authentication Model: Define a list of usernames and
      passwords and control the order in which local or RADIUS
      authentication is used.

   o  RADIUS Client Model: Defines a list of RADIUS server that a device
      used.

   Since TACACS+ is also used for device management and the feature is
   not contained in the system model, this document defines a YANG data
   model that allows users to configure TACACS+ client functions on a
   device for centralized Authentication, Authorization and Accounting
   provided by TACACS+ servers.

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   The YANG models can be used with network management protocols such as
   NETCONF[RFC6241] to install, manipulate, and delete the configuration
   of network devices.

   The YANG data model in this document conforms to the Network
   Management Datastore Architecture (NMDA) defined in [RFC8342].

2.  Conventions used in this document

   The keywords "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
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