Comparing ISA Server and Internet Connection Firewall
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Microsoft Windows XP and Windows Server 2003, Standard and Enterprise Editions, each have Internet Connection Firewall (ICF) built in, helping to secure the individual workstation or laptop computer against incoming hacker and virus threats. Internet Security and Acceleration (ISA) Server 2000 is Microsoft's enterprise-class firewall, built from the ground up to defend entire networks. ISA Server is a multilayered firewall that is optimized for application-layer filterning and designed to protect large, medium, and small businesses. ICF provides home users and small business users (fewer than five people) with baseline protection against incoming attacks.
The following table illustrates how these two technologies complement each other to help provide customers with a secure computing environment.
Features |
ISA Server |
ICF |
---|---|---|
Availability |
Standalone product. Ships in standard and enterprise editions. Runs on Windows 2000 Server and Windows 2000 Advanced Server. |
Included in Windows XP Home Edition; Windows XP Professional; and Windows Server 2003, Standard and Enterprise Editions. |
Target audience |
Extensible, multilayer firewall securing large, medium, and small enterprises. |
Personal firewall securing home users and small businesses. |
Certifications |
ICSA certified. |
No security certification. |
Functionality |
|
|
Deployment scenarios |
|
|
Access control |
Enforce Internet usage policy by controlling access by IP address, users, groups, Microsoft Active Directory users and groups, destination, schedule, and content type. |
No outbound access control. |
Secure server publishing |
Enable secure access to internal servers from the Internet without compromising the security of the internal network. This way, internal servers are never exposed directly to external (Internet) users. |
No server publishing. |
Log file format |
|
W3C extended file format. |
Extensibility |
Highly extensible.
|
Not extensible. |
Cache/proxy functionality |
Also an enterprise-class cache and proxy server. |
None. |
For More Information
To locate additional information on this and other security issues, visit the following pages:
- Microsoft Security
- Security on Microsoft TechNet
- ISA Server on microsoft.com
- ISA Server Product Evaluation Information
- ISA Server Partners
- ISA Server Earns ICSA Labs Certification, Industry's de Facto Standard for Firewall Security
- Windows XP ICF Feature Overview
- Windows XP ICF Overview
- The Role of NLA (Network Location Awareness)