The RASI_CONNECTION_2 structure contains information for a connection, including the GUID that identifies the connection, as defined in [MS-DTYP] section 2.3.4.

 typedef struct _RASI_CONNECTION_2 {
   DWORD dwConnection;
   WCHAR wszUserName[257];
   ROUTER_INTERFACE_TYPE dwInterfaceType;
   GUID guid;
   PPP_INFO_2 PppInfo2;
 } RASI_CONNECTION_2,
  *PRASI_CONNECTION_2;

dwConnection: See dwConnection in RASI_CONNECTION_0 (section 2.2.1.2.77).

wszUserName: See wszUserName in RASI_CONNECTION_0.

dwInterfaceType: A ROUTER_INTERFACE_TYPE (section 2.2.1.1.1) that specifies the interface type of the current connection.

guid: A GUID uniquely identifying the connection.

PppInfo2: A PPP_INFO_2 (section 2.2.1.2.73) structure that contains information about the PPP negotiation for this connection.