前言

网络拓扑

配置

no

ena
configure terminal

interface GigabitEthernet0/0

interface FastEthernet1/0
interface FastEthernet0/0

interface Serial2/0
interface Serial2/0


no shutdown #打开端口

ip address 192.168.10.1 255.255.255.0  #配置端口地址
ip address 192.168.20.1 255.255.255.0  #配置端口地址

ip address 192.168.3.1 255.255.255.0  #配置端口地址
ip address 192.168.3.2 255.255.255.0  #配置端口地址

show ip route brief  #查看路由
do 
show ip interface brief #查看接口地址


#添加路由目的地址和下一跳
ip route 192.168.1.0 255.255.255.0 192.168.3.2
ip route 192.168.10.0 255.255.255.0 192.168.3.1




P1
配置IP地址
192.168.1.2
255.255.255.0
192.168.1.1

R1
interface FastEthernet0/0
interface GigabitEthernet0/0
ip address 192.168.1.1 255.255.255.0


interface Serial2/0：12.1.1.1

ip address 12.1.1.1 255.255.255.0
配置默认静态路由
ip route 0.0.0.0 0.0.0.0 12.1.1.2




运营商R
interface Serial2/0
ip address 12.1.1.2 255.255.255.0

interface Serial3/0
ip address 23.1.1.2 255.255.255.0

ip route 0.0.0.0 0.0.0.0 23.1.1.2
ip route 0.0.0.0 0.0.0.0 23.1.1.3


Router(config)#ip route 12.1.1.0 255.255.255.0 23.1.1.3
Router(config)#ip route 23.1.1.0 255.255.255.0 12.1.1.1

PC通
ip route 192.168.1.0 255.255.255.0 12.1.1.1
ip route 10.1.1.0 255.255.255.0 23.1.1.3
PC不通
Router(config)#ip route 12.1.1.0 255.255.255.0 23.1.1.3
Router(config)#ip route 23.1.1.0 255.255.255.0 12.1.1.1

Jinqing666
#直连是通的 不直连需要路由

R2
interface Serial2/0
ip address 23.1.1.3 255.255.255.0
ip route 0.0.0.0 0.0.0.0 23.1.1.2

interface FastEthernet0/0
    ip address 10.1.1.1 255.255.255.0

P2
配置IP地址
10.1.1.2
255.0.0.0
10.1.1.1



do show ip interface brief
interface Tunnel0
no interface Tunnel0
ip address 172.26.1.1 255.255.255.0
tunnel source Gig0/1
tunnel destination 23.1.1.3


interface Tunnel0
no interface Tunnel0
ip address 172.26.1.2 255.255.255.0
tunnel source Gig0/1
tunnel destination 12.1.1.1




添加终端到tunnel路由
ip route 目标网段  目标网段掩码 下一条
分布R1:ip route 10.1.1.0 255.255.255.0 172.26.1.2
总部R2：ip route 192.168.1.0 255.255.255.0 172.26.1.1