四个路由器环路静态路由

r1:
Current configuration : 829 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname r1
!
enable secret 5 $1$BON0$L48E1paylt1Cg3EfC.m.I0
!
ip subnet-zero
!
!
no ip domain-lookup
!
!
!
!
interface Loopback0
ip address 1.1.1.1 255.255.255.0
!
interface FastEthernet0/0
ip address 10.1.1.1 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet1/0
ip address 10.1.4.2 255.255.255.0
duplex auto
speed auto
!
ip classless
ip route 2.2.2.0 255.255.255.0 10.1.1.2
ip route 3.3.3.0 255.255.255.0 10.1.1.2
ip route 4.4.4.0 255.255.255.0 10.1.4.1
ip route 10.1.2.0 255.255.255.0 10.1.1.2
ip route 10.1.3.0 255.255.255.0 10.1.1.2
ip route 10.1.4.0 255.255.255.0 10.1.4.1
ip http server
!
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
password 111
login
r2

Current configuration : 829 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname r2
!
enable secret 5 $1$botD$EoJVVOPTncOTNbEWsM8HV0
!
ip subnet-zero
!
!
no ip domain-lookup
!
!
!
!
interface Loopback1
ip address 2.2.2.2 255.255.255.0
!
interface FastEthernet0/0
ip address 10.1.2.1 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet1/0
ip address 10.1.1.2 255.255.255.0
duplex auto
speed auto
!
ip classless
ip route 1.1.1.0 255.255.255.0 10.1.1.1
ip route 3.3.3.0 255.255.255.0 10.1.2.2
ip route 4.4.4.0 255.255.255.0 10.1.2.2
ip route 10.1.1.0 255.255.255.0 10.1.1.1
ip route 10.1.3.0 255.255.255.0 10.1.2.2
ip route 10.1.4.0 255.255.255.0 10.1.2.2
ip http server
!
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
password 111
login
!
end
r3

Current configuration : 829 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname r3
!
enable secret 5 $1$zf4q$cAnG1bP4zbuf9.3kNO5vN/
!
ip subnet-zero
!
!
no ip domain-lookup
!
!
!
!
interface Loopback1
ip address 3.3.3.3 255.255.255.0
!
interface FastEthernet0/0
ip address 10.1.3.1 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet1/0
ip address 10.1.2.2 255.255.255.0
duplex auto
speed auto
!
ip classless
ip route 1.1.1.0 255.255.255.0 10.1.2.1
ip route 2.2.2.0 255.255.255.0 10.1.2.1
ip route 4.4.4.0 255.255.255.0 10.1.3.2
ip route 10.1.1.0 255.255.255.0 10.1.3.2
ip route 10.1.2.0 255.255.255.0 10.1.2.1
ip route 10.1.4.0 255.255.255.0 10.1.3.2
ip http server
!
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
password 111
login
!
end
r4

Current configuration : 829 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname r4
!
enable secret 5 $1$yV2N$.YdSzUc4woSfgSPKS.Nov1
!
ip subnet-zero
!
!
no ip

domain-lookup
!
!
!
!
interface Loopback1
ip address 4.4.4.4 255.255.255.0
!
interface FastEthernet0/0
ip address 10.1.4.1 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet1/0
ip address 10.1.3.2 255.255.255.0
duplex auto
speed auto
!
ip classless
ip route 1.1.1.0 255.255.255.0 10.1.4.2
ip route 2.2.2.0 255.255.255.0 10.1.3.1
ip route 3.3.3.0 255.255.255.0 10.1.3.1
ip route 10.1.1.0 255.255.255.0 10.1.4.2
ip route 10.1.2.0 255.255.255.0 10.1.3.1
ip route 10.1.3.0 255.255.255.0 10.1.3.1
ip http server
!
!
line con 0
exec-timeout 0 0
logging synchronous
line aux 0
line vty 0 4
password 111
login
!
end