OSX 10.6 Cisco IPSEC 奇怪的行為

我正在嘗試通過 DSL Internet 連接到我公司的 Cisco IPSEC VPN。由於許可問題，我設法使用 Cisco VPN Client 成功連接，現在我正嘗試切換到 O​​SX 10.6 本機客戶端。

問題是連接失敗並出現一個包含以下消息的對話框：

The negotiation with the VPN server failed. Verify the server address and try reconnecting.

我檢查了日誌：

Jun 29 13:10:39 racoon[4551]: Connecting.
Jun 29 13:10:39 racoon[4551]: IKE Packet: transmit success. (Initiator, Aggressive-Mode message 1).
Jun 29 13:10:39 racoon[4551]: IKEv1 Phase1 AUTH: success. (Initiator, Aggressive-Mode Message 2).
Jun 29 13:10:39 racoon[4551]: IKE Packet: receive success. (Initiator, Aggressive-Mode message 2).
Jun 29 13:10:39 racoon[4551]: IKEv1 Phase1 Initiator: success. (Initiator, Aggressive-Mode).
Jun 29 13:10:39 racoon[4551]: IKE Packet: transmit success. (Initiator, Aggressive-Mode message 3).
Jun 29 13:10:42 racoon[4551]: IKE Packet: transmit success. (Mode-Config message).
Jun 29 13:10:42 racoon[4551]: IKEv1 XAUTH: success. (XAUTH Status is OK).
Jun 29 13:10:42 racoon[4551]: IKE Packet: transmit success. (Mode-Config message).
Jun 29 13:10:42 racoon[4551]: IKEv1 Config: retransmited. (Mode-Config retransmit).
Jun 29 13:10:42 racoon[4551]: IKE Packet: receive success. (MODE-Config).
Jun 29 13:10:42 configd[19]: event_callback: Address added. previous interface setting (name: en1, address: 192.168.1.107), current interface setting (name: u92.168.54.147, subnet: 255.255.255.0, destination: 192.168.54.147).
Jun 29 13:10:42 configd[19]: network configuration changed.
Jun 29 13:10:42 vmnet-bridge[111]: Dynamic store changed
Jun 29 13:10:42 named[62]: not listening on any interfaces
Jun 29 13:10:58: --- last message repeated 1 time ---
Jun 29 13:10:58 configd[19]: SCNCController: Disconnecting. (Connection tried to negotiate for, 16 seconds).
Jun 29 13:10:58 racoon[4551]: IKE Packet: transmit success. (Information message).
Jun 29 13:10:58 racoon[4551]: IKEv1 Information-Notice: transmit success. (Delete ISAKMP-SA).
Jun 29 13:10:58 racoon[4551]: Disconnecting. (Connection tried to negotiate for, 19.113382 seconds).
Jun 29 13:10:58 named[62]: not listening on any interfaces
Jun 29 13:10:58 vmnet-bridge[111]: Dynamic store changed
Jun 29 13:10:58 named[62]: not listening on any interfaces
Jun 29 13:10:58 configd[19]: network configuration changed.

然後我打開終端，開始ping VPN 後面的伺服器，並嘗試再次連接。**現在連接正常！**這次記錄：

Jun 29 13:46:53 racoon[8136]: Connecting.
Jun 29 13:46:53 racoon[8136]: IKE Packet: transmit success. (Initiator, Aggressive-Mode message 1).
Jun 29 13:46:53 racoon[8136]: IKEv1 Phase1 AUTH: success. (Initiator, Aggressive-Mode Message 2).
Jun 29 13:46:53 racoon[8136]: IKE Packet: receive success. (Initiator, Aggressive-Mode message 2).
Jun 29 13:46:53 racoon[8136]: IKEv1 Phase1 Initiator: success. (Initiator, Aggressive-Mode).
Jun 29 13:46:53 racoon[8136]: IKE Packet: transmit success. (Initiator, Aggressive-Mode message 3).
Jun 29 13:46:56 racoon[8136]: IKE Packet: transmit success. (Mode-Config message).
Jun 29 13:46:56 racoon[8136]: IKEv1 XAUTH: success. (XAUTH Status is OK).
Jun 29 13:46:56 racoon[8136]: IKE Packet: transmit success. (Mode-Config message).
Jun 29 13:46:56 racoon[8136]: IKEv1 Config: retransmited. (Mode-Config retransmit).
Jun 29 13:46:56 racoon[8136]: IKE Packet: receive success. (MODE-Config).
Jun 29 13:46:56 configd[19]: event_callback: Address added. previous interface setting (name: en1, address: 192.168.1.107), current interface settinaddress: 192.168.54.149, subnet: 255.255.255.0, destination: 192.168.54.149).
Jun 29 13:46:56 vmnet-bridge[111]: Dynamic store changed
Jun 29 13:46:56 named[62]: not listening on any interfaces
Jun 29 13:46:56 configd[19]: network configuration changed.
Jun 29 13:46:56 named[62]: not listening on any interfaces
Jun 29 13:46:56 racoon[8136]: IKE Packet: transmit success. (Initiator, Quick-Mode message 1).
Jun 29 13:46:56 racoon[8136]: IKE Packet: receive success. (Initiator, Quick-Mode message 2).
Jun 29 13:46:56 racoon[8136]: IKE Packet: transmit success. (Initiator, Quick-Mode message 3).
Jun 29 13:46:56 racoon[8136]: IKEv1 Phase2 Initiator: success. (Initiator, Quick-Mode).
Jun 29 13:46:56 racoon[8136]: Connected.
Jun 29 13:46:56 configd[19]: SCNCController: Connected.

我對其進行了多次測試，它的行為始終相同。什麼是魔法？

在 OSX 10.7 中沒有觀察到這個問題，所以任何人都堅持這一點 - 只需更新到 Lion :)

引用自：https://serverfault.com/questions/285207