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COntrolling the Ethernet Port

Posted on 2004-09-16
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Last Modified: 2010-04-17
Is there a way to make a run and stay resident object that will completely control the TCP/IP ports?  All of them?  In other words, how do I create a program in VB.NET to prevent any activity except what I allow on a port I choose?
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Question by:ddepuemd
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brettmjohnson earned 125 total points
ID: 12080699
You are describing a Firewall.  Writing a Firewall requires a tremendous amount of
knowledge of Application, TCP, UDP, and IP protocols and extensive experience in
Networking.  It is not a task for the inexperienced programmer (and only an
inexperienced programmer would attempt to write a Firewall using Visual Basic).

Most modern OS's include a built-in firewall, but if your's does not (or it is insufficient
for your needs) you can purchase or download firewall software from numerous
providers.  You can also get a stand-alone firewall device, or have firewall capabilities
built into your router.


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by:sathisemail
sathisemail earned 125 total points
ID: 12131378
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