RT58iのキープアライブ時間を180秒と、ファイアウォールのほとんどを通過に設定した現在の設定の時のsyslog

2009/01/02 19:50:35: TUNNEL[01] PPTP connection is established: AAA.BBB.CCC.179
2009/01/02 19:50:35: PP[ANONYMOUS01] PPTP Connect
2009/01/02 19:51:05: PP[ANONYMOUS01] Give up establishing PPP/LCP in REQSENT
2009/01/02 19:51:05: PP[ANONYMOUS01] PPTP Disconnecting, cause [PPP: LCP Timeout]
2009/01/02 19:51:05: PP[ANONYMOUS01] PPTP Disconnected, cause [PPP: LCP Timeout]
2009/01/02 19:51:05: TUNNEL[01] PPTP connection is closed: AAA.BBB.CCC.179
2009/01/02 19:51:46: LAN1: PORT3 link up (100BASE-TX Full Duplex)