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Overview |
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Group |
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Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| No
| Import Library
| -
| Header File
| ras.h
| Unicode
| WinNT
| Platform Notes
| None
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RASPPPIP
The RASPPPIP structure contains the result of a PPP Internet Protocol (IP) projection
operation.
The RasGetProjectionInfo function returns a RASPPPIP data structure when its rasprojection parameter has the value RASP_PppIp.
typedef struct _RASPPPIP {
DWORD dwSize;
DWORD dwError;
TCHAR szIpAddress[ RAS_MaxIpAddress + 1 ];
} RASPPPIP;
Members
dwSize
Specifies the size of the structure, in bytes. Before calling the RasGetProjectionInfo function, set this member to indicate the version of the RASPPPIP structure that you are using. For information about earlier versions of this
structure, see the following Remarks section.
dwError
Contains the result of the PPP control protocol negotiation. A value of zero
indicates success. A nonzero value indicates failure, and is the actual fatal
error that occurred during the control protocol negotiation, the error that
prevented the projection from completing successfully.
szIpAddress
Contains a zero-terminated string that is the client's IP address on the RAS
connection. This address string has the form a.b.c.d; for example, "11.101.237.71".
szServerIpAddress
Contains a null-terminated string that is the IP address of the remote PPP
peer (that is, the server's IP address). This string is in "a.b.c.d" form. PPP
does not require that servers provide this address, but Windows NT servers will
consistently return the address anyway. Other PPP vendors may not provide the
address. If the address is not available, this member returns an empty string, "".
Remarks
The szServerIpAddress member was added to the RASPPPIP structure beginning with Windows NT 3.51 and the initial release of Windows
95. Beginning with these systems, RasGetProjectionInfo will support both the current form of the structure and the old form without
the szServerIpAddress member. Use the dwSize member to indicate which version you are using.
For earlier versions of Windows NT, RasGetProjectionInfo will return ERROR_INVALID_SIZE if dwSize specifies the current structure size. To retrieve PPP IP information from
older systems, dwSize must specify the size of the old structure without the szServerIpAddress member.
See Also
RasGetProjectionInfo, RASPROJECTION
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