JSI Tip 10218. How to Troubleshoot Windows Firewall settings in Windows XP Service Pack 2?

Microsoft Knowledge Base Article 875357 contains the following summary and introduction:

SUMMARY

Microsoft Windows XP Service Pack 2 (SP2) includes Microsoft Windows Firewall, the updated firewall software that replaces Internet Connection Firewall (ICF). If Microsoft Windows Firewall is blocking a port that is used by a service or by a program, you can configure the Windows Firewall to create an exception. Windows Firewall may be blocking a program or a service if the following conditions are true:

• Programs do not respond to a client's request.

• Client programs do not receive data from the server.

A Windows Firewall Security Alert may notify you that Windows Firewall is blocking a particular program. When this scenario occurs, you may unblock the program by selecting Unblock this program in the Security Alert dialog box. To help determine which programs and ports are being blocked, you can configure Windows Firewall to log dropped packets. With Windows Firewall Netsh Helper, you can configure Windows Firewall and Windows Firewall logging at the command prompt. Program compatibility may not always be the issue. Group Policy settings can also prevent programs from running. Windows XP Service Pack 2 (SP2) includes several utilities that you can use to troubleshoot Windows Firewall issues.

INTRODUCTION

The best way to resolve firewall blocking issues is to modify programs to work with stateful filtering firewalls. If you cannot modify a program, you can configure the Windows Firewall to add exceptions for specific ports and programs. This article discusses the failure symptoms that relate to the default configuration of the Windows XP Service Pack 2 firewall, how to configure exceptions for ports and for programs, and how to troubleshoot firewall settings.



Hide comments

Comments

  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.
Publish