单臂路由实验。首次通过live writer

 

Router1 F0/0 <----> Router2 F0/0
Router1 F0/3 <----> Router3 F0/0
Router2 F0/4 <----> Router4 F0/0

R3和R4的作用在于模拟两台PC。此实验的目的在于测试ip helper-address

R1:
interface fast 0/0
no sw
ip address 192.168.1.1 255.255.255.252
no shut
interface fast 0/3
no sw
ip address 192.168.1.5 255.255.255.252
no shut

R2:
interface fast 0/0
no sw
ip addr 192.168.1.2 255.255.255.252
no shut
interface fast 0/4
ip addr 192.168.1.9 255.255.252
no shut
R3；