KB137914 - BUG: Windows 95-Based Winsock App Can't Receive IPX Broadacast

Article ID: 137914

Article Last Modified on 10/16/2002

Microsoft Win32 Software Development Kit (SDK) 4.0

This article was previously published under Q137914

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.

Keywords: kbbug kbwinsock kbapi kbnetwork KB137914