My project is security over CDMA. RB433UAH dial via CDMA signal to Cisco router1 It get ip address from redius that made PPTP connection via CDMA to Cisco router1 after that RB433UAH made IPsec connection to Cisco router2. Initial every connection is success but PPTP connection have problem. RB433UAH PPTP client often disconnect to Cisco router2 PPTP server.I think configure RB433UAH PPTP client right but I does not configure Cisco router PPTP server. However this is error from Cisco router2 PPTP server.

LNS_BAAC#sh vpdn history failure
Table size: 20
Number of entries in table: 1

User: xxxxx@xxxxxxxxxxxxxxxx, MID = 11752
NAS: Information is not applicable
Gateway: LNS_BAAC, IP address = 172.18.3.34, CLID = 11754
Log time: *Apr 6 06:18:42.225, Error repeat count: 6373
Failure type: Call disconnected due to link failure
Failure reason: Result 2, Error 6, Locally generated disconnect

Whoever help explain Failure reason to me What is mean?. Thank a lot for your attention.