PRB: MSG_OOB and MSG_DONTROUTE Not Supported Over IPX Sockets (174158)
The information in this article applies to:
- Microsoft Win32 Application Programming Interface (API), when used with:
This article was previously published under Q174158 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
| Modification Type: | Major | Last Reviewed: | 11/5/2003 |
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| Keywords: | kbAPI kbnetwork kbprb kbWinsock KB174158 |
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