来源: 互联网  发布时间: 2014-02-18

XP无线连不上,很神奇!!!
最近把系统重新装了一下,结果我们宿舍的无线上不去了,不知怎么了,别人能上,我的电脑也能搜到.小区一共能搜到三个无线信号,我们的一个,有密码,别人的一个有密码,一个无密码,我连我们的联不上,连别人的无密码能连上,用网线能连上我们的,我以为是无线坏了,但我们同事就能连上,我把无线驱动重新安装了好几回都不行.点击修复,过一会,就提示无法续订IP，不知怎地？？


1、检查一下密码是否有误
2、检查一下路由器是否有限制了
3、还有一个直截了当的方法就是重新配一下路由器。

加密方式对吗

我猜90%在无线页面做了MAC限制,登陆到路由上看看吧.不行就来个暴力的,重置路由器.

    

    来源: 互联网  发布时间: 2014-02-18

向高手请教
请问一个没有网络硬件基础的人 应该看哪些书 不需要精通级别的
帮个忙,谢谢!


<<网络布线与小型局域网搭建>>
这个是教材,对于没有基础的人来说应该够了.

《电脑组网一点通》、《从零开始——局域网组建与维护》、《计算机网络技术实训教程》可由浅入深逐步看

    

    来源: 互联网  发布时间: 2014-02-18

【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>>>> ISAKMP OAK AG (SA, KE, NON, ID, VID, VID, VID, VID)
19:07:47.671 My Connections\dialup - message not received! Retransmitting!