The PPP_ATCP_INFO structure MAY<48> be used to contain the result of a PPP AppleTalk projection operation.

 typedef struct _PPP_ATCP_INFO {
   DWORD dwError;
   WCHAR wszAddress[33];
 } PPP_ATCP_INFO;

dwError: Specifies the result of the PPP control protocol negotiation. A value of zero (0) indicates success. A nonzero value indicates failure and is the actual fatal error that occurred during the control protocol negotiation.

wszAddress: Specifies a null-terminated Unicode string that holds the client's AppleTalk address on the RRAS server connection.