55     fields_desc = [FieldLenField("len", None, fmt="H", length_of="data",  variable in PPTP
86     fields_desc = [LenField("len", 156),  variable in PPTPStartControlConnectionRequest
111     fields_desc = [LenField("len", 156),  variable in PPTPStartControlConnectionReply
140     fields_desc = [LenField("len", 16),  variable in PPTPStopControlConnectionRequest
156     fields_desc = [LenField("len", 16),  variable in PPTPStopControlConnectionReply
172     fields_desc = [LenField("len", 16),  variable in PPTPEchoRequest
185     fields_desc = [LenField("len", 20),  variable in PPTPEchoReply
209     fields_desc = [LenField("len", 168),  variable in PPTPOutgoingCallRequest
238     fields_desc = [LenField("len", 32),  variable in PPTPOutgoingCallReply
259     fields_desc = [LenField("len", 220),  variable in PPTPIncomingCallRequest
277     fields_desc = [LenField("len", 148),  variable in PPTPIncomingCallReply
296     fields_desc = [LenField("len", 28),  variable in PPTPIncomingCallConnected
314     fields_desc = [LenField("len", 16),  variable in PPTPCallClearRequest
330     fields_desc = [LenField("len", 148),  variable in PPTPCallDisconnectNotify
346     fields_desc = [LenField("len", 40),  variable in PPTPWANErrorNotify
363     fields_desc = [LenField("len", 24),  variable in PPTPSetLinkInfo