Định tuyến tĩnh dùng Next-Hop
Cho sơ đồ mạng như sau:
Yêu cầu:
- Kết nối giữa Router vs Router thì Router có ID nhỏ hơn sẽ nhận Start IP
- Kết nối giữa Router vs PC thì Router sẽ nhận Start IP và PC nhận Start IP + 1
- Hãy cấu hình định tuyến tĩnh dùng Next-Hop theo hướng mũi tên trong sơ đồ.
Cấu hình:
Trên PC1:
Trên PC2:
Trên PC3:
Trên Router R1:
R1#show running-config
Building configuration...
Current configuration : 861 bytes
!
version 12.4
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname R1
!
!
!
!
!
!
!
!
no ip cef
no ipv6 cef
!
!
!
!
!
!
!
!
!
!
!
!
spanning-tree mode pvst
!
!
!
!
!
!
interface FastEthernet0/0
ip address 192.168.1.1 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
shutdown
!
interface Serial0/0/0
ip address 192.168.12.1 255.255.255.252
clock rate 2000000
!
interface Serial0/0/1
ip address 192.168.13.1 255.255.255.252
!
interface Vlan1
no ip address
shutdown
!
ip classless
ip route 192.168.2.0 255.255.255.0 192.168.12.2
ip route 192.168.3.0 255.255.255.0 192.168.12.2
ip route 192.168.23.0 255.255.255.0 192.168.12.2
!
ip flow-export version 9
!
!
!
!
!
!
!
line con 0
!
line aux 0
!
line vty 0 4
login
!
!
!
end
R1#
Trên Router R2:
R2#show running-config
Building configuration...
Current configuration : 858 bytes
!
version 12.4
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname R2
!
!
!
!
!
!
!
!
ip cef
no ipv6 cef
!
!
!
!
!
!
!
!
!
!
!
!
spanning-tree mode pvst
!
!
!
!
!
!
interface FastEthernet0/0
ip address 192.168.2.1 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
shutdown
!
interface Serial0/0/0
ip address 192.168.12.2 255.255.255.252
!
interface Serial0/0/1
ip address 192.168.23.1 255.255.255.252
clock rate 2000000
!
interface Vlan1
no ip address
shutdown
!
ip classless
ip route 192.168.13.0 255.255.255.0 192.168.23.2
ip route 192.168.1.0 255.255.255.0 192.168.23.2
ip route 192.168.3.0 255.255.255.0 192.168.23.2
!
ip flow-export version 9
!
!
!
!
!
!
!
line con 0
!
line aux 0
!
line vty 0 4
login
!
!
!
end
R2#
Trên Router R3:
R3#show running-config
Building configuration...
Current configuration : 858 bytes
!
version 12.4
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname R3
!
!
!
!
!
!
!
!
ip cef
no ipv6 cef
!
!
!
!
!
!
!
!
!
!
!
!
spanning-tree mode pvst
!
!
!
!
!
!
interface FastEthernet0/0
ip address 192.168.3.1 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
shutdown
!
interface Serial0/0/0
ip address 192.168.13.2 255.255.255.252
clock rate 2000000
!
interface Serial0/0/1
ip address 192.168.23.2 255.255.255.252
!
interface Vlan1
no ip address
shutdown
!
ip classless
ip route 192.168.2.0 255.255.255.0 192.168.13.1
ip route 192.168.1.0 255.255.255.0 192.168.13.1
ip route 192.168.12.0 255.255.255.0 192.168.13.1
!
ip flow-export version 9
!
!
!
!
!
!
!
line con 0
!
line aux 0
!
line vty 0 4
login
!
!
!
end
R3#
Xem bảng định tuyến trên các Router:
R1#show ip route
…
Gateway of last resort is not set
C 192.168.1.0/24 is directly connected, FastEthernet0/0
S 192.168.2.0/24 [1/0] via 192.168.12.2
S 192.168.3.0/24 [1/0] via 192.168.12.2
192.168.12.0/30 is subnetted, 1 subnets
C 192.168.12.0 is directly connected, Serial0/0/0
192.168.13.0/30 is subnetted, 1 subnets
C 192.168.13.0 is directly connected, Serial0/0/1
S 192.168.23.0/24 [1/0] via 192.168.12.2
R1#
R2#show ip route
…
Gateway of last resort is not set
S 192.168.1.0/24 [1/0] via 192.168.23.2
C 192.168.2.0/24 is directly connected, FastEthernet0/0
S 192.168.3.0/24 [1/0] via 192.168.23.2
192.168.12.0/30 is subnetted, 1 subnets
C 192.168.12.0 is directly connected, Serial0/0/0
S 192.168.13.0/24 [1/0] via 192.168.23.2
192.168.23.0/30 is subnetted, 1 subnets
C 192.168.23.0 is directly connected, Serial0/0/1
R2#
R3#show ip route
…
Gateway of last resort is not set
S 192.168.1.0/24 [1/0] via 192.168.13.1
S 192.168.2.0/24 [1/0] via 192.168.13.1
C 192.168.3.0/24 is directly connected, FastEthernet0/0
S 192.168.12.0/24 [1/0] via 192.168.13.1
192.168.13.0/30 is subnetted, 1 subnets
C 192.168.13.0 is directly connected, Serial0/0/0
192.168.23.0/30 is subnetted, 1 subnets
C 192.168.23.0 is directly connected, Serial0/0/1
R3#