Microsoft KB Archive/137914

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BUG: Windows 95-Based Winsock App Can't Receive IPX Broadacast

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Q137914

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The information in this article applies to:


 * Microsoft Win32 Software Development Kit (SDK), version 4.0

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SYMPTOMS
A winsock application is unable to receive IPX broadcasts when running under Windows 95 even though it is able to receive UDP broadcasts.

RESOLUTION
To enable a winsock application to receive IPX broadcasts, use the setsockopt call with the SO_BROADCAST flag as in this example:

  int sock, optval; .  .   sock = socket(.....); err = setsockopt( sock, SOL_SOCKET, SO_BROADCAST, (char*)&optval,        sizeof(optval));

STATUS
Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. We are reasearching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION
Note that there is no need to use this option for the case of UDP and specification for winsock 1.1 says that this is needed only for sending broadcasts.

Additional query words:

Keywords : kbnetwork kbAPI kbSDKPlatform kbOSWin95bug kbWinsock kbGrpDSNet

Issue type : kbbug

Technology : kbWin32SDKSearch kbAudDeveloper kbSDKSearch kbWin32sSearch kbWin32SDK400