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An Easy Firewall Application

, 9 Oct 2003
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Firewall application developed using Packet Filtering API.

Sample Image - firewallpapi.jpg

Introduction

When I published my articles about firewall development, I received some e-mails about how to develop a complete firewall solution using the methods described. With this tool I want to give these users an easy example of packet filtering utility.

In this solution I have used Packet Filtering API for Microsoft Windows 2000 and above. I have developed a MFC class wrapper for this API. With this class, I make a simple MFC application that allows a user to set filter rules in local interfaces.

If you want to know more about Packet Filtering API, you can read my article Packet Filtering in .NET. Feel free to e-mail me if you want to know more about this application.

Update history

  • October 6, 2003.- Initial release. Version 1.0.
  • October 9, 2003.- Added support for "default action". Version 1.1.

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

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About the Author

Jesus Oliva
Chief Technology Officer
Spain Spain
To summarize: learn, learn, learn... and then try to remember something I.... I don't Know what i have to remember...

http://www.olivacorner.com

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Comments and Discussions

 
Questioncan this app works in bluetooth connection? Pin
HuGo101121-Mar-05 4:27
memberHuGo101121-Mar-05 4:27 
AnswerRe: can this app works in bluetooth connection? Pin
Manir31-Jan-06 20:54
memberManir31-Jan-06 20:54 
GeneralAbout permitting some packet Pin
roversbig13-Jan-05 23:38
memberroversbig13-Jan-05 23:38 
GeneralRe: About permitting some packet Pin
Amit45123-Jul-07 23:54
memberAmit45123-Jul-07 23:54 
Generalpacket api Pin
Irish_GUI31-Mar-04 8:26
memberIrish_GUI31-Mar-04 8:26 
QuestionHow do I restore my setting after using this? Pin
biny2-Jan-04 19:06
memberbiny2-Jan-04 19:06 
AnswerRe: How do I restore my setting after using this? Pin
Jesús O.5-Jan-04 9:00
memberJesús O.5-Jan-04 9:00 
GeneralRe: How do I restore my setting after using this? Pin
biny5-Jan-04 21:45
memberbiny5-Jan-04 21:45 
GeneralA Firewall in C# Pin
palamr1-Jan-04 1:58
memberpalamr1-Jan-04 1:58 
GeneralRe: A Firewall in C# Pin
Jesús O.1-Jan-04 5:15
memberJesús O.1-Jan-04 5:15 
GeneralRe: A Firewall in C# Pin
shunlong24-Apr-04 2:42
membershunlong24-Apr-04 2:42 
GeneralRe: A Firewall in C# Pin
Jesús O.24-Apr-04 6:01
memberJesús O.24-Apr-04 6:01 
Generalan Error Pin
raj_123k27-Dec-03 2:34
memberraj_123k27-Dec-03 2:34 
GeneralRe: an Error Pin
Jesús O.27-Dec-03 5:16
memberJesús O.27-Dec-03 5:16 
GeneralDrop incoming packet. Pin
chainat20-Nov-03 1:13
memberchainat20-Nov-03 1:13 
GeneralRe: Drop incoming packet. Pin
Jesús O.20-Nov-03 6:44
memberJesús O.20-Nov-03 6:44 
GeneralRe: Drop incoming packet. Pin
tasleem1438-Aug-06 1:05
membertasleem1438-Aug-06 1:05 
GeneralRe: Drop incoming packet. Pin
pku200929-Dec-08 0:10
memberpku200929-Dec-08 0:10 
Generalclosing a port Pin
andrewgs7316-Nov-03 21:44
sussandrewgs7316-Nov-03 21:44 
GeneralRe: closing a port Pin
Jesús O.17-Nov-03 0:12
memberJesús O.17-Nov-03 0:12 
GeneralRe: closing a port Pin
andrewgs7318-Nov-03 1:01
memberandrewgs7318-Nov-03 1:01 
GeneralRe: closing a port its important plz [modified] Pin
tasleem1438-Aug-06 0:56
membertasleem1438-Aug-06 0:56 
GeneralRe: closing a port Pin
tasleem1438-Aug-06 1:09
membertasleem1438-Aug-06 1:09 
Generalcompilation error Pin
sherrytang23-Oct-03 16:42
membersherrytang23-Oct-03 16:42 
GeneralRe: compilation error Pin
Jesús O.24-Oct-03 1:48
memberJesús O.24-Oct-03 1:48 

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