RASPPPLCP structure

The RASPPPLCP structure contains information that describes the results of a PPP Link Control Protocol (LCP)/multilink negotiation.

The RasGetProjectionInfo function returns a RASPPPLCP data structure when its rasprojection parameter has the value RASP_PppLcp.

Syntax

typedef struct _RASPPPLCP {
  DWORD dwSize;
  BOOL  fBundled;
  DWORD dwError;
  DWORD dwAuthenticationProtocol;
  DWORD dwAuthenticationData;
  DWORD dwEapTypeId;
  DWORD dwServerAuthenticationProtocol;
  DWORD dwServerAuthenticationData;
  DWORD dwServerEapTypeId;
  BOOL  fMultilink;
  DWORD dwTerminateReason;
  DWORD dwServerTerminateReason;
  TCHAR szReplyMessage[RAS_MaxReplyMessage];
  DWORD dwOptions;
  DWORD dwServerOptions;
} RASPPPLCP, *PRASPPPLCP;

Members

• dwSize
  If this member is TRUE, the connection is composed of multiple links. Otherwise, this member is FALSE.

• fBundled
  If this member is TRUE, the connection is composed of multiple links. Otherwise, this member is FALSE.

• dwError
  If the negotiation was unsuccessful, dwError contains the error that occurred.

• dwAuthenticationProtocol
  A value that specifies the authentication protocol used to authenticate the client.

  Value	Meaning
  RASLCPAP_PAP	Password Authentication Protocol
  RASLCPAP_SPAP	Shiva Password Authentication Protocol
  RASLCPAP_CHAP	Challenge Handshake Authentication Protocol
  RASLCPAP_EAP	Extensible Authentication Protocol

   

• dwAuthenticationData
  A value that specifies additional information about the authentication protocol specified by dwAuthenticationProtocol. This member can be one of the following values.

  Value	Meaning
  RASLCPAD_CHAP_MD5	MD5 CHAP
  RASLCPAD_CHAP_MS	Microsoft CHAP
  RASLCPAD_CHAP_MSV2	Microsoft CHAP version 2

   

• dwEapTypeId
  A value that specifies the type identifier of the Extensible Authentication Protocol (EAP) used to authenticate the local client. The value of this member is valid only if dwAuthenticationProtocol is RASLCPAPP_EAP.

• dwServerAuthenticationProtocol
  A value that specifies the authentication protocol used to authenticate the server. This member can be one of the following values.

  Value	Meaning
  RASLCPAP_PAP	Password Authentication Protocol
  RASLCPAP_SPAP	Shiva Password Authentication Protocol
  RASLCPAP_CHAP	Challenge Handshake Authentication Protocol
  RASLCPAP_EAP	Extensible Authentication Protocol

   

• dwServerAuthenticationData
  A value that specifies additional information about the authentication protocol specified by dwServerAuthenticationProtocol. This member can be one of the following values.

  Value	Meaning
  RASLCPAD_CHAP_MD5	MD5 CHAP
  RASLCPAD_CHAP_MS	Microsoft CHAP
  RASLCPAD_CHAP_MSV2	Microsoft CHAP version 2

   

• dwServerEapTypeId
  A value that specifies the type ID of the extensible authentication protocol (EAP) used to authenticate the remote computer. The value of this member is valid only if dwServerAuthenticationProtocol is RASLCPAP_EAP.

• fMultilink
  If this member is TRUE, the connection supports multilink. Otherwise, this member is FALSE.

• dwTerminateReason
  Reserved for future use. Must be zero.

• dwServerTerminateReason
  Reserved for future use. Must be zero.

• szReplyMessage
  A pointer to a string that contains the message, if any, from the authentication protocol success/failure packet.

• dwOptions
  A value that specifies additional LCP options for the local comput client. This member is a combination of the following flags.

  Flags	Description
  RASLCPO_PFC	Protocol Field Compression (see RFC 1172).
  RASLCPO_ACFC	Address and Control Field Compression (see RFC 1172).
  RASLCPO_SSHF	Short Sequence Number Header Format (see RFC 1990).
  RASLCPO_DES_56	DES 56-bit encryption.
  RASLCPO_3_DES	Triple DES Encryption.

   

• dwServerOptions
  A value that specifies additional LCP options for the remote server. This member is a combination of the following flags.

  Flags	Description
  RASLCPO_PFC	Protocol Field Compression (see RFC 1172).
  RASLCPO_ACFC	Address and Control Field Compression (see RFC 1172).
  RASLCPO_SSHF	Short Sequence Number Header Format (see RFC 1990).
  RASLCPO_DES_56	DES 56-bit encryption.
  RASLCPO_3_DES	Triple DES Encryption.
  RASLCPO_AES_128	Windows 7: AES 128-bit encryption
  RASLCPO_AES_256	Windows 7: AES 256-bit encryption

   

Requirements

See also

Remote Access Service (RAS) Overview

Remote Access Service Structures

RasGetProjectionInfo

RASPROJECTION

RASPPPCCP