Gartner Research

How to Implement Network Access Control in Three Phases

Published: 09 April 2019

ID: G00377878

Analyst(s): Claudio Neiva, Lawrence Orans, John Watts

Summary

Network access control projects often start with device posture and access enforcement as objectives, but fail to reach their desired goals. Security and risk management leaders who break NAC implementations into three phases, with reasonable milestones, can speed implementation and achieve success.

Table Of Contents
  • Key Challenges

Introduction

Analysis

  • Phase 1: Governance and Discovery
    • Preconnect Versus Postconnect Authentication
    • Agent-Based or Agentless Device Profiling
  • Phase 2: Authentication and Process
    • Guilty-Until-Proven-Innocent Authentication Recommendation
    • Innocent-Until-Proven-Guilty Authentication Recommendations
    • Establishing Processes
  • Phase 3: Policy and Operations
    • Segregation of Authorized Versus Unauthorized Devices
    • Guest Access Management
    • Quarantine Devices
    • Configuration Guides for Endpoints, Supplicants and Network Equipment
    • Troubleshooting Guides for All Three Layers of Configuration: Endpoint, Network Devices and NAC Solutions
    • Self-Service Solutions
    • Sponsor Training

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