项目1 组建局域网 / 1
  任务1.1 利用VLAN 技术划分网络 ··················2
    子任务1.1.1 VLAN 技术简介 ·························2
    子任务1.1.2 VLAN 的类型 ····························3
    子任务1.1.3 VLAN 技术原理 ·························6
    子任务1.1.4 VLAN 接口类型 ·························9
    子任务1.1.5 VLAN 的基本配置 ···················· 11
    子任务1.1.6 任务实施 ································ 12
  任务1.2 VLAN 路由技术应用 ······················· 14
    子任务1.2.1 VLAN 间通信问题 ···················· 14
    子任务1.2.2 VLAN 间通信的解决方式 ··········· 14
    子任务1.2.3 VLAN 间通信的基本配置 ··········· 17
    子任务1.2.4 任务实施 ································ 17
  任务1.3 生成树协议应用 ····························· 20
    子任务1.3.1 二层环路的问题及STP 的优势 ···· 20
    子任务1.3.2 STP 原理 ································ 22
    子任务1.3.3 STP 报文 ································ 27
    子任务1.3.4 STP 端口状态 ···························28
    子任务1.3.5 STP 基本配置 ···························30
    子任务1.3.6 任务实施 ·································30
  任务1.4 VRRP 技术应用 ······························34
    子任务1.4.1 VRRP 协议简介 ························34
    子任务1.4.2 VRRP 产生的背景 ·····················35
    子任务1.4.3 VRRP 协议原理 ························35
    子任务1.4.4 VRRP 工作方式 ························39
    子任务1.4.5 VRRP 基本配置 ························41
    子任务1.4.6 任务实施 ·································42
  任务1.5 以太网端口技术应用 ························46
    子任务1.5.1 自动协商 ·································46
    子任务1.5.2 流量控制 ·································47
    子任务1.5.3 端口聚合 ·································48
    子任务1.5.4 端口镜像 ·································50

项目2 组建IP 网络 / 53
  任务2.1 IP 路由原理 ··································· 54
    子任务2.1.1 什么是路由 ····························· 54
    子任务2.1.2 路由原理 ································ 55
    子任务2.1.3 路由的来源 ····························· 57
    子任务2.1.4 路由的优先级 ·························· 59
    子任务2.1.5 路由的度量值 ·························· 61
    子任务2.1.6 路由的选路规则 ······················· 62
    子任务2.1.7 负载均衡 ·································62
    子任务2.1.8 路由的环路 ······························63
    子任务2.1.9 任务实施 ·································64
  任务2.2 静态路由应用 ·································66
    子任务2.2.1 静态路由概述 ···························66
    子任务2.2.2 静态路由配置 ···························66
    子任务2.2.3 任务实施 ·································67
  任务2.3 动态路由协议应用 ···························70
    子任务2.3.1 动态路由协议概述 ·····················70
    子任务2.3.2 路由协议分类 ···························70
    子任务2.3.3 路由协议之间的互操作 ···············72
    子任务2.3.4 路由协议的性能指标 ··················72
  任务2.4 RIP 应用 ········································72
    子任务2.4.1 RIP 概述 ·································72
    子任务2.4.2 RIP 协议工作过程 ·····················73
    子任务2.4.3 协议自身的问题及改进 ···············77
    子任务2.4.4 RIP 配置 ·································81
    子任务2.4.5 任务实施 ·································81
  任务2.5 OSPF 应用 ··································· 87
    子任务2.5.1 OSPF 概述 ····························· 87
    子任务2.5.2 OSPF 工作过程 ······················· 88
    子任务2.5.3 OSPF 报文 ···························· 91
    子任务2.5.4 邻居和邻接 ···························· 91
    子任务2.5.5 接口网络类型 ························· 93
    子任务2.5.6 DR 选举 ································ 96
    子任务2.5.7 区域划分 ······························· 98
    子任务2.5.8 路由引入 ······························100
    子任务2.5.9 任务实施 ······························102

项目3 组建安全网络 / 107
  任务3.1 网络安全应用 ······························· 108
    子任务3.1.1 网络安全概述 ························· 108
    子任务3.1.2 网络安全常用技术 ··················· 108
  任务3.2 防火墙应用 ·································· 110
    子任务3.2.1 防火墙的分类 ························· 110
    子任务3.2.2 安全区域 ······························· 111
    子任务3.2.3 ASPF ···································· 112
    子任务3.2.4 攻击防范 ······························· 113
    子任务3.2.5 任务实施 ······························· 113
  任务3.3 ACL 应用 ···································· 116
    子任务3.3.1 ACL 概述 ······························ 116
    子任务3.3.2 ACL 的使用方法 ·····················118
    子任务3.3.3 任务实施 ·······························118
  任务3.4 NAT 应用 ····································121
    子任务3.4.1 NAT 技术概述 ························121
    子任务3.4.2 地址转换原理 ·························121
    子任务3.4.3 任务实施 ·······························124
  任务3.5 VPN 应用 ····································131
    子任务3.5.1 VPN 概述 ······························131
    子任务3.5.2 IPSec 相关概念 ·······················132
    子任务3.5.3 IPSec 工作流程 ·······················135
    子任务3.5.4 任务实施 ·······························135

项目4 应用层协议 / 145
  任务4.1 DHCP 应用 ·································· 146
    子任务4.1.1 DHCP 概述 ···························· 146
    子任务4.1.2 DHCP 的报文 ························· 147
    子任务4.1.3 DHCP 工作过程 ······················ 149
    子任务4.1.4 DHCP 中继 ···························· 152
    子任务4.1.5 DHCP 的相关配置 ··················· 152
    子任务4.1.6 任务实施 ······························· 154
  任务4.2 DNS 技术应用 ······························157
    子任务4.2.1 DNS 概述 ······························157
    子任务4.2.2 域名结构 ·······························158
    子任务4.2.3 域名解析过程 ·························159
  任务4.3 FTP 与TFTP 应用 ··························161
    子任务4.3.1 FTP 概述 ·······························161
    子任务4.3.2 FTP 中的连接 ·························162
    子任务4.3.3 FTP 数据传输方式 ···················162
    子任务4.3.4 TFTP 概述 ·····························164
    子任务4.3.5 TFTP 数据传输过程 ·················164
    子任务4.3.6 FTP 与TFTP 配置 ···················165
  任务4.4 HTTP 应用 ···································167
    子任务4.4.1 Web 概述 ·······························167
    子任务4.4.2 HTTP 介绍 ···························· 168
  任务4.5 SMTP 与POP3 应用 ······················ 169
    子任务4.5.1 SMTP 与POP3 概述 ················ 169
    子任务4.5.2 任务实施 ······························ 170

参考文献……………………………………………………………………………………………174

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