主要内容有：

1 隧道技术配置..................................................................................................................................... 1-1
1.1 隧道技术简介..................................................................................................................................... 1-1
1.1.1 IPv6 over IPv4 隧道................................................................................................................ 1-1
1.1.2 IPv4 over IPv4 隧道................................................................................................................ 1-5
1.1.3 IPv4 或IPv6 over IPv6 隧道.................................................................................................... 1-5
1.1.4 6PE概述.................................................................................................................................. 1-6
1.1.5 协议规范................................................................................................................................. 1-7
1.2 隧道技术配置任务简介...................................................................................................................... 1-7
1.3 配置IPv6 手动隧道............................................................................................................................. 1-8
1.3.1 配置准备................................................................................................................................. 1-8
1.3.2 配置IPv6 手动隧道.................................................................................................................. 1-8
1.3.3 配置举例................................................................................................................................. 1-9
1.4 配置IPv4 兼容IPv6 自动隧道........................................................................................................... 1-12
1.4.1 配置准备............................................................................................................................... 1-12
1.4.2 配置IPv4 兼容IPv6 自动隧道................................................................................................. 1-12
1.4.3 配置举例............................................................................................................................... 1-13
1.5 配置6to4 隧道................................................................................................................................. 1-16
1.5.1 配置准备............................................................................................................................... 1-16
1.5.2 配置6to4 隧道...................................................................................................................... 1-16
1.5.3 配置6to4 隧道举例............................................................................................................... 1-17
1.5.4 配置6to4 中继举例............................................................................................................... 1-19
1.6 配置ISATAP隧道............................................................................................................................. 1-21
1.6.1 配置准备............................................................................................................................... 1-21
1.6.2 配置ISATAP隧道.................................................................................................................. 1-22
1.6.3 配置举例............................................................................................................................... 1-23
1.7 配置IPv4 over IPv4 隧道................................................................................................................. 1-25
1.7.1 配置准备............................................................................................................................... 1-25
1.7.2 配置IPv4 over IPv4 隧道....................................................................................................... 1-26
1.7.3 配置举例............................................................................................................................... 1-27
1.8 配置IPv4 over IPv6 隧道................................................................................................................. 1-29
1.8.1 配置准备............................................................................................................................... 1-29
1.8.2 配置IPv4 over IPv6 隧道....................................................................................................... 1-30
1.8.3 配置举例............................................................................................................................... 1-31
1.9 配置IPv6 over IPv6 隧道................................................................................................................. 1-34
1.9.1 配置准备............................................................................................................................... 1-34
1.9.2 配置IPv6 over IPv6 隧道....................................................................................................... 1-34
1.9.3 配置举例............................................................................................................................... 1-35
1.10 隧道技术显示和维护...................................................................................................................... 1-38
1.11 常见错误配置举例......................................................................................................................... 1-39