Gartner Research

Best Practices in Network Segmentation for Security

Published: 28 July 2016

ID: G00271721

Analyst(s): Greg Young

Summary

Implementing better network segmentation to improve security is a significant project for network operations, data center ops and security teams. From dividing IoT from IT using microsegmentation to avoiding oversegmentation, we call out best practices for maximizing success in this task.

Table Of Contents
  • Key Challenges

Introduction

Analysis

  • Don't Oversegment
  • Don't Undersegment
  • Keep the Design Work Insourced
  • Get Visibility: Map the Network and Communication
  • Trust Only Trustable Mechanisms
  • Match the Strength of the Segmentation Mechanism to the Need
  • Follow the Data, Not Only the Organization Chart
  • Microsegmentation, Not Wholesale Virtualization
  • Plan for Heterogeneity With Homogeneous Controls
  • Publish, Monitor and Socialize the Segmentation Architecture

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