【求助】netscreen 25防火墙的vpn连接问题（分不够绝对一直加）


我做了一个25的VPN，目的是想从外部的上网用户可以通过25 的VPN安全的联入到公司的网络。
我按照找到的配置例子配置了ns25，配置的选项有：
interface、policy->untrust--trunst、vpn->atuokey ike、vpn->atuokey advanced gateway、user->local、user->group
客户端软件使用的是：netscreen remote
也安装配置例子进行了相应的配置
结果是：
vpn建立不起来，在ns25的log文件里发现如下错误提示：
Rejected an IKE packet on ethernet3 from 172.28.118.13:500 to 172.28.118.52:500 with cookies cc7b69737cd23735 and 0000000000000000 because an initial Phase 1 packet arrived from an unrecognized peer gateway.

请教各位高手，这是什么原因？如何解决？

我是按照下面连接中的例子进行配置的：

http://bits2005.bokee.com/5280919.html

我的拨号用户的ＩＰ为192.168.1.0的网段，公司内部网络也是192.168.1.0的网段，配置完后，Ｎetscreen Romote的拨号客户机连外部网都上不了，更别提连到公司的网络了，Ｒomote日志显示为以下内容：

18:50:58.906  
18:50:58.906 My Connections\dialup - Initiating IKE Phase 1 (IP ADDR=218.204.216.10)
18:50:58.921 My Connections\dialup - SENDING>>>> ISAKMP OAK AG (SA, KE, NON, ID, VID, VID, VID, VID)
18:51:14.578 My Connections\dialup - message not received! Retransmitting!
18:51:14.578 My Connections\dialup - SENDING>>>> ISAKMP OAK AG (Retransmission)
18:51:22.734  
18:51:29.578 My Connections\dialup - message not received! Retransmitting!
18:51:29.578 My Connections\dialup - SENDING>>>> ISAKMP OAK AG (Retransmission)
18:51:44.578 My Connections\dialup - message not received! Retransmitting!
18:51:44.578 My Connections\dialup - SENDING>>>> ISAKMP OAK AG (Retransmission)
18:51:44.734  
18:51:59.578 My Connections\dialup - Exceeded 3 IKE SA negotiation attempts
18:51:59.734  
18:51:59.750 My Connections\dialup - Initiating IKE Phase 1 (IP ADDR=218.204.216.10)
18:51:59.781 My Connections\dialup - SENDING>>>> ISAKMP OAK AG (SA, KE, NON, ID, VID, VID, VID, VID)
18:52:15.578 My Connections\dialup - message not received! Retransmitting!
18:52:15.578 My Connections\dialup - SENDING>>>> ISAKMP OAK AG (Retransmission)
18:52:22.750  
18:52:30.593 My Connections\dialup - message not received! Retransmitting!
18:52:30.593 My Connections\dialup - SENDING>>>> ISAKMP OAK AG (Retransmission)
18:52:44.750  
18:52:45.593 My Connections\dialup - message not received! Retransmitting!
18:52:45.593 My Connections\dialup - SENDING>>>> ISAKMP OAK AG (Retransmission)
18:58:34.718  
18:58:34.734 My Connections\dialup - Initiating IKE Phase 1 (IP ADDR=218.204.216.10)
18:58:34.781 My Connections\dialup - SENDING>>>> ISAKMP OAK AG (SA, KE, NON, ID, VID, VID, VID, VID)
18:58:50.640 My Connections\dialup - message not received! Retransmitting!
18:58:50.640 My Connections\dialup - SENDING>>>> ISAKMP OAK AG (Retransmission)
18:59:00.625  
18:59:05.640 My Connections\dialup - message not received! Retransmitting!
18:59:05.640 My Connections\dialup - SENDING>>>> ISAKMP OAK AG (Retransmission)
18:59:20.640 My Connections\dialup - message not received! Retransmitting!
18:59:20.640 My Connections\dialup - SENDING>>>> ISAKMP OAK AG (Retransmission)
18:59:23.937  
18:59:35.640 My Connections\dialup - Exceeded 3 IKE SA negotiation attempts
19:00:31.515  
19:00:31.531 My Connections\dialup - Initiating IKE Phase 1 (IP ADDR=218.204.216.10)
19:00:31.546 My Connections\dialup - SENDING>>>> ISAKMP OAK AG (SA, KE, NON, ID, VID, VID, VID, VID)
19:00:46.640 My Connections\dialup - message not received! Retransmitting!
19:00:46.640 My Connections\dialup - SENDING>>>> ISAKMP OAK AG (Retransmission)
19:07:32.328  
19:07:32.343 My Connections\dialup - Initiating IKE Phase 1 (IP ADDR=218.204.216.10)
19:07:32.390 My Connections\dialup - SENDING