关键配置:
R3的配置
!
interface Loopback0
ip address 1.1.1.1 255.255.255.0
!
interface Serial2/0
ip address 192.168.12.3 255.255.255.0
clock rate 64000
ip route 2.2.2.0 255.255.255.0 Serial2/0
ip route 3.3.3.0 255.255.255.0 Serial2/0
ip route 192.168.13.0 255.255.255.0 192.168.12.4
R4的配置:
interface Loopback0
ip address 2.2.2.2 255.255.255.0
interface Serial2/0
ip address 192.168.12.4 255.255.255.0
ip route 1.1.1.0 255.255.255.0 192.168.12.3
ip route 3.3.3.0 255.255.255.0 192.168.13.5
!
R5的配置:
interface Loopback0
ip address 3.3.3.3 255.255.255.0
!
interface Serial3/0
ip address 192.168.13.5 255.255.255.0
!
ip route 1.1.1.0 255.255.255.0 Serial3/0
ip route 2.2.2.0 255.255.255.0 Serial3/0
ip route 192.168.12.0 255.255.255.0 192.168.13.4
!