目 录第 6 章 安全 VPN 及拨号业务故障排除 ....................................................................................2016.1 IPSec 和 IKE 故障排除综述 ..............................................................................................2016.1.1 IPSec 和 IKE 知识简介 ..........................................................................................2016.1.2 IPSec 和 IKE 配置的一般步骤 ................................................................................2026.1.3 手工方式下 IPSec 功能和性能的常见问题 .............................................................2036.1.4 协商方式下 IPSec 和 IKE 功能和性能的常见问题 ..................................................2056.1.5 IPSec 和 IKE 配置过程的注意事项 ........................................................................2066.2 与 IPSec 和 IKE 故障相关的 dispaly、debugging 命令介绍 .............................................2126.2.1 display acl .............................................................................................................2126.2.2 display ike proposal ..............................................................................................2136.2.3 display ike sa ........................................................................................................2136.2.4 display ipsec policy ...............................................................................................2146.2.5 display ipsec proposal ..........................................................................................2156.2.6 display ipsec sa ....................................................................................................2166.2.7 display ipsec statistics ..........................................................................................2176.2.8 debugging ipsec ...................................................................................................