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PPTP UbuntuからのVPNは接続できません

Linux（Kubuntu 9.10）でWindowsから既に使用しているVPNを構成しようとしています。

Network-manager-pptpパッケージをインストールし、NetworkManagerの下にVPNを追加しました。これらは「詳細」ボタンの下のパラメータです：

  • 認証方法：PAP、CHAP、MSCHAP、MSCHAP2、EAP
    （「MSCHAP、MSCHAP2」も試しました）
  • MPPE暗号化を使用する：はい
  • 暗号：任意
  • ステートフル暗号化を使用する：いいえ
  • BSD圧縮を許可する：はい
  • Deflate圧縮を許可する：はい
  • 許可TCPヘッダー圧縮：はい
  • 送信PPPエコーパケット：いいえ

接続しようとすると機能せず、これがシステムログに記録されます。

2010-04-08 13:53:47 pcelena NetworkManager  <info>  Starting VPN service 'org.freedesktop.NetworkManager.pptp'...
2010-04-08 13:53:47 pcelena NetworkManager  <info>  VPN service 'org.freedesktop.NetworkManager.pptp' started (org.freedesktop.NetworkManager.pptp), PID 4931
2010-04-08 13:53:47 pcelena NetworkManager  <info>  VPN service 'org.freedesktop.NetworkManager.pptp' just appeared, activating connections
2010-04-08 13:53:47 pcelena pppd[4932]  Plugin /usr/lib/pppd/2.4.5//nm-pptp-pppd-plugin.so loaded.
2010-04-08 13:53:47 pcelena NetworkManager  <info>  VPN plugin state changed: 3
2010-04-08 13:53:47 pcelena pppd[4932]  pppd 2.4.5 started by root, uid 0
2010-04-08 13:53:47 pcelena NetworkManager  <info>  VPN connection 'MYVPN' (Connect) reply received.
2010-04-08 13:53:47 pcelena NetworkManager     SCPlugin-Ifupdown: devices added (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
2010-04-08 13:53:47 pcelena NetworkManager     SCPlugin-Ifupdown: device added (path: /sys/devices/virtual/net/ppp0, iface: ppp0): no ifupdown configuration found.
2010-04-08 13:53:47 pcelena pppd[4932]  Using interface ppp0
2010-04-08 13:53:47 pcelena pppd[4932]  Connect: ppp0 <--> /dev/pts/2
2010-04-08 13:53:47 pcelena pptp[4934]  nm-pptp-service-4931 log[main:pptp.c:314]: The synchronous pptp option is NOT activated
2010-04-08 13:53:47 pcelena pptp[4927]  nm-pptp-service-4918 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 7 'Outgoing-Call-Request'
2010-04-08 13:53:47 pcelena pptp[4927]  nm-pptp-service-4918 log[ctrlp_disp:pptp_ctrl.c:858]: Received Outgoing Call Reply.
2010-04-08 13:53:47 pcelena pptp[4927]  nm-pptp-service-4918 log[ctrlp_disp:pptp_ctrl.c:897]: Outgoing call established (call ID 1, peer's call ID 14800).
2010-04-08 13:53:48 pcelena pppd[4932]  CHAP authentication succeeded
2010-04-08 13:53:48 pcelena pppd[4932]  CHAP authentication succeeded
2010-04-08 13:53:48 pcelena pppd[4932]  LCP terminated by peer
2010-04-08 13:53:48 pcelena pptp[4927]  nm-pptp-service-4918 log[ctrlp_disp:pptp_ctrl.c:929]: Call disconnect notification received (call id 14800)
2010-04-08 13:53:48 pcelena pptp[4927]  nm-pptp-service-4918 log[ctrlp_disp:pptp_ctrl.c:788]: Received Stop Control Connection Request.
2010-04-08 13:53:48 pcelena pptp[4927]  nm-pptp-service-4918 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 4 'Stop-Control-Connection-Reply'
2010-04-08 13:53:48 pcelena pptp[4927]  nm-pptp-service-4918 log[callmgr_main:pptp_callmgr.c:258]: Closing connection (shutdown)
2010-04-08 13:53:48 pcelena pptp[4927]  nm-pptp-service-4918 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 12 'Call-Clear-Request'
2010-04-08 13:53:48 pcelena pptp[4927]  nm-pptp-service-4918 log[callmgr_main:pptp_callmgr.c:258]: Closing connection (shutdown)
2010-04-08 13:53:48 pcelena pptp[4927]  nm-pptp-service-4918 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 12 'Call-Clear-Request'
2010-04-08 13:53:48 pcelena pptp[4927]  nm-pptp-service-4918 log[call_callback:pptp_callmgr.c:79]: Closing connection (call state)
2010-04-08 13:53:48 pcelena pppd[4932]  Modem hangup
2010-04-08 13:53:48 pcelena pppd[4932]  Connection terminated.
2010-04-08 13:53:48 pcelena NetworkManager  <info>  VPN plugin failed: 1
2010-04-08 13:53:48 pcelena NetworkManager     SCPlugin-Ifupdown: devices removed (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
2010-04-08 13:53:48 pcelena pppd[4932]  Exit.
2010-04-08 13:53:48 pcelena NetworkManager  <info>  VPN plugin failed: 1
2010-04-08 13:53:48 pcelena NetworkManager  <info>  VPN plugin state changed: 6
2010-04-08 13:53:48 pcelena NetworkManager  <info>  VPN plugin state change reason: 0
2010-04-08 13:53:48 pcelena NetworkManager  <WARN>  connection_state_changed(): Could not process the request because no VPN connection was active.
2010-04-08 13:53:48 pcelena NetworkManager  <info>  Policy set 'Auto eth0' (eth0) as default for routing and DNS.
2010-04-08 13:54:01 pcelena NetworkManager  <debug> [1270727641.001390] ensure_killed(): waiting for vpn service pid 4931 to exit
2010-04-08 13:54:01 pcelena NetworkManager  <debug> [1270727641.001479] ensure_killed(): vpn service pid 4931 cleaned up

ここで目立つエラーは「pppd [4932] LCPがピアによって終了しました "」です。

何が問題になる可能性があり、それをどのように機能させるかについて誰かが提案を持っていますか？

ubuntu-9.10vpnkubuntunetworkmanagerpptp
1
Andrea Polci

私はほぼ同じ問題を抱えていましたが、これが私がそれを解決した方法です：

他のすべてのオプションを有効にして、128ビット暗号化を有効にしました。

今それは動作します！ :)

3
Peter