Gartner Research

Network Firewalls: The Changing Face of Network Defense

Published: 07 August 2013

ID: G00250104

Analyst(s): Eric Maiwald

Summary

Firewalls continue to be an important component of security architecture. However, like any other safeguard, they are not a panacea of protection. The evolution of enterprise networks, firewall inspection mechanisms and network speeds has resulted in changes to firewalls, and these changes continue.

Table Of Contents

Summary of Findings

Analysis

  • Positive Security Model
  • Attack Protection
  • Content Layer Control
  • Denial of Service
  • Firewall Functions
    • Prevention
    • Detection
    • Deception
  • Assurance
  • Management
  • Information Sharing
  • Use Cases
    • Perimeter for Inbound Traffic
    • Campus Perimeter for Outbound Traffic
    • Internal Data Center Zone Perimeter
    • Public Cloud
  • Future Directions
    • IPv6
    • The Impact of SDN
    • Overlay Networks
  • Buying Center Shift
  • Strengths
  • Weaknesses
  • Gartner Definitions
    • Next-Generation Firewalls
    • Network IPS
    • Secure Web Gateway
    • Security in the Switch
    • Stateful Firewalls
    • Unified Threat Management
    • Web Application Firewall

The Details

  • What Are the Basic Issues?
    • How Do Firewalls Fit Into the Information Security Architecture?
    • What Level of Inspection Is Appropriate for Firewalls to Perform?
    • What Is the Relationship Between Firewalls and Intrusion Detection and Prevention?
    • Will Firewalls Help With Internal Network Security?
    • What Are the Issues Surrounding the Management of Firewalls?
    • To What Extent Do Firewalls Impact Network Architecture?
    • How Can Firewalls Be Incorporated Into a Virtualized Data Center?
    • How Can Firewalls Be Used With the Public Cloud?
    • How Will SDN Impact the Firewall?

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