Dr. Tom Shinder's Configuring ISA Server 2004

Chapter 10

ISA 2004 Stateful Inspection and Application Layer Filtering

Solutions in this Chapter:

 Application Filters

 Web Filters

Introduction

The ISA firewall is able to perform both stateful filtering and stateful application layer inspection. The ISA firewall’s stateful filtering feature set makes the ISA firewall a network layer stateful firewall in the same class as any hardware firewall that performs stateful filtering at the network and transport layers. Stateful filtering is often referred to as stateful packet inspection, which ...