Lab2:CDP命令相关

实验要求 :

1.       路由器名： CCNA1 CCNA2 CCNA3

2.       设置 password 为 cisco1,secret 为 cisco2,vty 为 cisco3, 并要求所有密码都加密。

3.       配置各路由器

实验过程：

      配置路由器 1

router>en

router#configure terminal

router(config)#hostname ccna1                                               设置路由器名

ccna1(config)#enable password cisco1                                         设置 password

ccna1(config)#enable secret cisco2                                           设置 secret

ccna1(config)#line vty 0 4                                                                                                                

ccna1(config-line)#login

ccna1(config-line)#pass cisco3                                                  设置 vty 密码

ccna1(config-line)#exit

ccna1(config)#service password-encryption                                            对密码加密

ccna1(config)#int s0

ccna1(config-if)#ip add 202.119.249.1 255.255.255.0                               设置 s0

ccna1(config-if)#clock rate 64000                                               设置时钟只在 DCE 端配置

ccna1(config-if)#no shut

ccna1(config-if)#exit

ccna1(config)#exit

ccna1#

配置路由器 2

router>enable

router#conf t

router(config)#host ccna2                                                   设置路由器名

ccna2(config)#enable password cisco1                                        设置 password

ccna2(config)#enable secret cisco2                                           设置 secret

ccna2(config)#line vty 0 4                                                                                                               

ccna2(config-line)#login

ccna2(config-line)#pass cisco3                                                  设置 vty 密码

ccna2(config-line)#exit

ccna2(config)#service password-en                                           对密码加密

ccna2(config)#int s0                                                          设置 s0

ccna2(config-if)#ip add 202.119.248.1 255.255.255.0                              

ccna2(config-if)#clock rate 64000

ccna2(config-if)#no shut

ccna2(config-if)#exit

ccna2(config)#int s1                                                          设置 s1

ccna2(config-if)#ip add 202.119.248.2 255.255.255.0

ccna2(config-if)#no shut

ccna2(config-if)#exit

ccna2(config)#exit

ccna2#

配置路由器 3

router>en

router#conf t

router(config)#host ccna3                                                  设置路由器名

ccna3(config)#enable password cisco1                                        设置 password

ccna3(config)#enable secret cisco2                                           设置 secret

ccna3(config)#line vty 0 4                                                                                                                

ccna3(config-line)#login

ccna3(config-line)#pass cisco3                                               设置 vty 密码

ccna3(config-line)#exit

ccna3(config)#service password-en                                           对密码加密

ccna3(config)#int s1                                                          设置 s1

ccna3(config-if)#ip add 202.119.248.2 255.255.255.0

ccna3(config-if)#no shut

ccna3(config-if)#exit

ccna3(config)#exit

ccna3#

在路由器 2 上操作：

show cdp neighbors                                            显示相连的网络器件

show cdp                                                   显示 CDP 信息

show cdp traffic                                              显示 CDP 所用的数据包的信息

show cdp entry *                                             显示所有相邻路由器的所有信息

show cdp entry WORD( 路由器名 )                               显示该路由器的所有信息

un all                                                       关闭所有 DEBUG 信息

(config)#cdp run                                              启动 CDP 协议

disconnect ( 端口号 )                                           放弃该端口的连接

show cdp interface  ( 端口 )                                    显示该端口的 CDP 信息

clear cdp counter                                             清除 CDP 计数器

debug cdp packet                                             启动 CDP 数据包调试模式