R1 配置:
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R1
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$gg/n$O/XVk78oCf2j01Zorq1UC.
!
clock timezone EST -5
no aaa new-model
ip subnet-zero
no ip domain lookup
!
ip audit po max-events 100
!
!
interface Loopback0
ip address 192.168.10.2 255.255.255.255 secondary
ip address 192.168.10.1 255.255.255.255
!
interface Loopback1
ip address 172.16.0.1 255.255.255.255
!
interface Loopback2
ip address 172.16.0.2 255.255.255.255
!
interface Ethernet0/0
no ip address
shutdown
!
interface Serial1/0
ip address 12.1.1.1 255.255.255.0
serial restart-delay 0
!
interface Serial2/0
no ip address
shutdown
serial restart-delay 0
!
ip classless
ip route 10.1.1.1 255.255.255.255 12.1.1.2
ip route 20.1.1.1 255.255.255.255 12.1.1.2
no ip http server
no ip http secure-server
!
!
line con 0
exec-timeout 0 0
password cisco1
logging synchronous
login
line aux 0
line vty 0 4
password cisco3
login
!
end
R2 配置：
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R2
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$ZllD$L8zg4xLu3UdENXGMs79hc1
!
clock timezone EST -5
no aaa new-model
ip subnet-zero
no ip domain lookup
!
ip audit po max-events 100
!
!
interface Loopback0
ip address 10.1.1.1 255.255.255.255
!
interface Ethernet0/0
no ip address
shutdown
!
interface Serial1/0
ip address 23.1.1.1 255.255.255.0
no ip route-cache
serial restart-delay 0
!
interface Serial2/0
ip address 12.1.1.2 255.255.255.0
serial restart-delay 0
!
ip classless
ip route 20.1.1.1 255.255.255.255 23.1.1.2
ip route 172.16.0.0 255.255.255.0 12.1.1.1
ip route 192.168.10.0 255.255.255.0 12.1.1.1
no ip http server
no ip http secure-server
!
!
line con 0
exec-timeout 0 0
password cisco1
logging synchronous
login
line aux 0
line vty 0 4
password cisco3
login
!
end
R3 配置 ：
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R3
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$rECM$EjM6T33Nc322fbQdEe2Ee0
!
clock timezone EST -5
no aaa new-model
ip subnet-zero
no ip domain lookup
!
ip audit po max-events 100
!
!
interface Loopback0
ip address 20.1.1.1 255.255.255.255
!
interface Ethernet0/0
no ip address
shutdown
!
interface Serial1/0
no ip address
shutdown
serial restart-delay 0
!
interface Serial2/0
ip address 23.1.1.2 255.255.255.0
serial restart-delay 0
!
ip classless
ip route 0.0.0.0 0.0.0.0 23.1.1.1
或者 添加以下配置
ip route 10.1.1.1 255.255.255.255 23.1.1.1
ip route 172.16.0.0 255.255.255.0 23.1.1.1
ip route 192.168.10.0 255.255.255.0 23.1.1.1
no ip http server
no ip http secure-server
!
!
line con 0
exec-timeout 0 0
password cisco1
logging synchronous
login
line aux 0
line vty 0 4
password cisco3
login
!
end