Router# configure terminal Enter configuration commands, one per line.. Routerconfig#hostname R1 R1config#line console 0 R1config-line#password cisco R1config-line#login R1config#line vt
Trang 1end
R3
hostname R3
interface Ethernet0/0
ip address 192.168.4.1 255.255.255.0 half-duplex
interface Serial0/0
ip address 192.168.1.1 255.255.255.0
no fair-queue
end
R4
hostname R4
interface Ethernet0/0
ip address 192.168.100.1 255.255.255.0 interface Serial0/0
ip address 192.168.2.1 255.255.255.0 clockrate 64000
no fair-queue
interface Serial0/1
ip address 192.168.1.2 255.255.255.0 clockrate 64000
ip http server
ip classless
end
R5
hostname R5
interface Loopback0
ip address 10.1.1.1 255.255.255.0
no ip directed-broadcast
interface Ethernet0/0
ip address 172.16.1.2 255.255.255.0
no ip directed-broadcast
interface Serial0/0
ip address 192.168.2.2 255.255.255.252
ip classless
end
Cấu hình ban đầu cho các router :
R1
Trang 2Router# configure terminal
Enter configuration commands, one per line End with CNTL/Z Router(config)#hostname R1
R1(config)#line console 0
R1(config-line)#password cisco
R1(config-line)#login
R1(config)#line vty 0 4
R1(config-line)#password cisco
R1(config-line)#login
R1(config-line)#exit
R1(config)#enable password cisco
R1(config)#interface s0/0
R1(config-if)#ip address 172.16.2.2 255.255.255.252
R1(config-if)#clock rate 64000
R1(config-if)#no shutdown
R1(config-if)#int e0/0
R1(config-if)#ip address 172.16.1.1 255.255.255.0
R1(config-if)#no shutdown
R1(config-if)#exit
R1(config)#
cấu hình cho router R2 :
Router>enable
Router#configure terminal
Enter configuration commands, one per line End with CNTL/Z Router(config)#hostname R2
R2(config)#line console 0
R2(config-line)#password cisco
R2(config-line)#line vty 0 4
R2(config-line)#no login
R2(config-line)#exit
R2(config)#interface e0/0
R2(config-if)#ip address 192.168.4.2 255.255.255.0
R2(config-if)#no shutdown
R2(config-if)#interface s0/0
R2(config-if)#ip address 172.16.2.1 255.255.255.252
R2(config-if)#clock rate 64000
R2(config-if)#no shutdown
R2(config-if)#exit
R2(config)#^Z
R2#
Trang 3cấu hình cho router R3 :
Router# configure terminal
Enter configuration commands, one per line End with CNTL/Z Router(config)#hostname R3
R3(config)#line console 0
R3(config-line)#password cisco
R3(config-line)#line vty 0 4
R3(config-line)#no login
R3(config-line)#exit
R3(config)#interface s0/0
R3(config-if)#ip address 192.168.1.1 255.255.255.0
R3(config-if)#clock rate 64000
R3(config-if)#no shutdown
R3(config-if)#interface e0/0
R3(config-if)#ip address 192.168.4.1 255.255.255.0
R3(config-if)#no shutdown
R3(config-if)#exit
R3(config)#^Z
R3#
cấu hình cho router R4 :
Router# configure terminal
Enter configuration commands, one per line End with CNTL/Z Router(config)#hostname R4
R4(config)#line console 0
R4(config-line)#password cisco
R4(config-line)#line vty 0 4
R4(config-line)#no login
R4(config-line)#exit
R4(config)#interface s0/1
R4(config-if)#ip address 192.168.1.2 255.255.255.0
R4(config-if)#clock rate 64000
R4(config-if)#no shutdown
R4(config-if)#interface s0/0
R4(config-if)#ip address 192.168.2.1 255.255.255.252
R4(config-if)#clock rate 64000
R4(config-if)#no shutdown
R4(config-if)#exit
cấu hình cho router R5 :
Router# configure terminal
Enter configuration commands, one per line End with CNTL/Z
Trang 4Router(config)#hostname R5
R5(config)#line console 0
R5(config-line)#password cisco
R5(config-line)#line vty 0 4
R5(config-line)#no login
R5(config-line)#exit
R5(config)#interface s0/0
R5(config-if)#ip address 192.168.2.2 255.255.255.252 R5(config-if)#clock rate 64000
R5(config-if)#no shutdown
R5(config-if)#interface e0/0
R5(config-if)#ip address 172.16.1.2 255.255.255.0 R5(config-if)#no shutdown
R5(config-if)#interface loopback 0
R5(config-if)#ip address 10.1.1.1 255.255.255.0
R5(config-if)#^Z
R5#
kiểm tra bảng định tuyến :
R1#show ip route
Gateway of last resort is not set
172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 172.16.1.0/24 is directly connected, Ethernet0/0
C 172.16.2.0/30 is directly connected, Serial0/0 R2#show ip route
Gateway of last resort is not set
172.16.0.0/30 is subnetted, 1 subnets
C 172.16.2.0 is directly connected, Serial0/0
C 192.168.4.0/24 is directly connected, Ethernet0/0 R3#show ip route
Gateway of last resort is not set
C 192.168.4.0/24 is directly connected, Ethernet0/0
C 192.168.1.0/24 is directly connected, Serial0/0 R4#show ip route
Gateway of last resort is not set
C 192.168.1.0/24 is directly connected, Serial0/1 192.168.2.0/30 is subnetted, 1 subnets
C 192.168.2.0/30 is directly connected, Serial0/0 R5#show ip route
Gateway of last resort is not set
172.16.0.0/24 is subnetted, 1 subnets
Trang 5C 172.16.1.0 is directly connected, Ethernet0/0
10.0.0.0/24 is subnetted, 1 subnets
C 10.1.1.0 is directly connected, Loopback0
192.168.2.0/30 is subnetted, 1 subnets
C 192.168.2.0 is directly connected, Serial0/0
Cấu hình định tuyến cho các router Router R2,R3, interface s0/0 của R1 và
interface s0/1 của R4 chạy OSPF process 1 ,còn lại là chạy ISIS
Ta biết cấu hình ISIS đòi hỏi cần phải có địa chỉ NET ,mỗi system-ID đại diện cho mỗi node, ta có thể gắn nó một cách tùy ý nhưng để đảm bảo system-ID là duy nhất của mỗi router trong một area ta sẽ sử dụng địa chỉ Mac
Ta kiểm tra địa chỉ Mac của thiết bị bằng cách show arp hoặc show interface R1#show arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 172.16.1.1 - 0004.c052.7ce0 ARPA Ethernet0/0
R4#show interface e0/0
Ethernet0/0 is administratively down, line protocol is down
Hardware is AmdP2, address is 0002.4b79.9ca0 (bia 0002.4b79.9ca0)
Internet address is 192.168.100.1/24
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
reliability 252/255, txload 1/255, rxload 1/255
<omitted>
R5#sh arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 172.16.1.2 - 00d0.ba1a.f080 ARPA Ethernet0/0
Cấu hình như sau :
R1(config)#router ospf 1
R1(config-router)#network 172.16.2.0 0.0.0.3 area 0
R1(config-router)#exit
R1(config)#clns routing
R1(config)#router isis