ns-mprapi-ppp_ccp_info.md

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NS:mprapi._PPP_CCP_INFO	PPP_CCP_INFO (mprapi.h)	The PPP_CCP_INFO structure contains information that describes the results of a Compression Control Protocol (CCP) negotiation.	PPP_CCP_COMPRESSION PPP_CCP_ENCRYPTION128BIT PPP_CCP_ENCRYPTION40BIT PPP_CCP_ENCRYPTION40BITOLD PPP_CCP_ENCRYPTION56BIT PPP_CCP_HISTORYLESS PPP_CCP_INFO PPP_CCP_INFO structure [RAS] RASCCPCA_MPPC RASCCPCA_STAC _mpr_ppp_ccp_info mprapi/PPP_CCP_INFO rras.ppp_ccp_info	rras\ppp_ccp_info.htm	RRAS	d50493c4-8a18-4cab-8973-a752f3f7f6c2	12/05/2018	PPP_CCP_COMPRESSION, PPP_CCP_ENCRYPTION128BIT, PPP_CCP_ENCRYPTION40BIT, PPP_CCP_ENCRYPTION40BITOLD, PPP_CCP_ENCRYPTION56BIT, PPP_CCP_HISTORYLESS, PPP_CCP_INFO, PPP_CCP_INFO structure [RAS], RASCCPCA_MPPC, RASCCPCA_STAC, _mpr_ppp_ccp_info, mprapi/PPP_CCP_INFO, rras.ppp_ccp_info	mprapi.h		Windows	Windows 2000 Professional [desktop apps only]	Windows 2000 Server [desktop apps only]													Windows	PPP_CCP_INFO		19H1	_PPP_CCP_INFO mprapi/_PPP_CCP_INFO PPP_CCP_INFO mprapi/PPP_CCP_INFO	c++	APIRef kbSyntax	HeaderDef	Mprapi.h	PPP_CCP_INFO

PPP_CCP_INFO structure

-description

The PPP_CCP_INFO structure contains information that describes the results of a Compression Control Protocol (CCP) negotiation.

-struct-fields

-field dwError

Specifies an error if the negotiation is unsuccessful.

-field dwCompressionAlgorithm

Specifies the compression algorithm used by the local computer. The following table shows the possible values for this member.

Value	Meaning
RASCCPCA_MPPC	Microsoft Point-to-Point Compression (MPPC) Protocol
RASCCPCA_STAC	STAC option 4

-field dwOptions

Specifies the compression options on the local computer. The following options are supported.

Option	Meaning
PPP_CCP_COMPRESSION	Compression without encryption.
PPP_CCP_HISTORYLESS	Microsoft Point-to-Point Encryption (MPPE) in stateless mode. The session key is changed after every packet. This mode improves performance on high latency networks, or networks that experience significant packet loss.
PPP_CCP_ENCRYPTION40BITOLD	MPPE using 40-bit keys.
PPP_CCP_ENCRYPTION40BIT	MPPE using 40-bit keys.
PPP_CCP_ENCRYPTION56BIT	MPPE using 56-bit keys.
PPP_CCP_ENCRYPTION128BIT	MPPE using 128-bit keys.

-field dwRemoteCompressionAlgorithm

Specifies the compression algorithm used by the remote computer. The following table shows the possible values for this member.

Value	Meaning
RASCCPCA_MPPC	Microsoft Point-to-Point Compression (MPPC) Protocol
RASCCPCA_STAC	STAC option 4

-field dwRemoteOptions

Specifies the compression options on the remote computer. The following options are supported.

Option	Meaning
PPP_CCP_COMPRESSION	Compression without encryption.
PPP_CCP_HISTORYLESS	Microsoft Point-to-Point Encryption (MPPE) in stateless mode. The session key is changed after every packet. This mode improves performance on high latency networks, or networks that experience significant packet loss.
PPP_CCP_ENCRYPTION40BITOLD	MPPE using 40-bit keys.
PPP_CCP_ENCRYPTION40BIT	MPPE using 40-bit keys.
PPP_CCP_ENCRYPTION56BIT	MPPE using 56-bit keys.
PPP_CCP_ENCRYPTION128BIT	MPPE using 128-bit keys.

-see-also

PPP_LCP_INFO