Check for an active Internet connection

PJ Arends

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22 Mar 2010CPOL

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I have seen many different ways to check if the computer has an active internet connection. The best one, IMO, is to check for the presence of the default route in the IP forwarding table that is maintained by windows. This can be checked by using GetIPForwardTable function found in the...

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This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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PJ Arends

President

Canada

Father of two, brother of two, child of two.
Spouse to one, uncle to many, friend to lots.
Farmer, carpenter, mechanic, electrician, but definitely not a plumber.
Likes walks with the wife, board games, card games, travel, and camping in the summer.
High school graduate, college drop-out.
Hobby programmer who knows C++ with MFC and the STL.
Has dabbled with BASIC, Pascal, Fortran, COBOL, C#, SQL, ASM, and HTML.
Realized long ago that programming is fun when there is nobody pressuring you with schedules and timelines.

Check for an active Internet connection

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