PRB: MSG_OOB and MSG_DONTROUTE Not Supported Over IPX Sockets |
Q174158
The information in this article applies to:
- Microsoft Win32 Application Programming Interface (API), included with:
- Microsoft Windows 95
SYMPTOMS
When you use the WinSock send() or sendto() APIs on Windows 95 to send over an IPX/SPX socket, the MSG_DONTROUTE and MSG_OOB flags are not supported.
With the version of WSIPX (Windows Sockets support for IPX/SPX) that ships with Windows 95, setting these flags will have no effect. However, with newer versions of WSIPX the call will fail if these flags are set. GetLastError() will return WSAEOPNOTSUPP (error 10045).
CAUSE
There is no implementation provided in the IPX/SPX Compatible protocol for handling Out-Of-Band (Urgent) data, or for making IPX packets non-routable.
RESOLUTION
When using IPX/SPX sockets and calling send() or sendto(), do not set the MSG_DONTROUTE or MSG_OOB flags.
STATUS
This behavior is by design.
MORE INFORMATION
Additional query words:
Keywords : kbnetwork kbAPI kbSDKPlatform kbOSWin95 kbWinsock kbGrpDSNet
Issue type : kbprb
Technology : kbAudDeveloper kbWin32sSearch kbWin32API
Last Reviewed: December 17, 2000 |