문제)
왼쪽LAN은 10.10.10.0/24 오른쪽 LAN은 20.20.20.0/24
라우터와 라우터 연결은 Serial 케이블 사용, 라우터 번호가 작은 쪽 DCE
HDLC, 1024, 라우터 간 네트워크는 임의로 설정(ex : 12.0.0.0/24)
라우팅은 OSPF 구성
왼쪽 LAN과 오른쪽 LAN의 PC 간 통신이 가능하도록
R1 기본 설정 (이름바꾸기, 시리얼 설정)
| Router>enable Router#conf t Router(config)#hostname R1 이름바꾸기 R1(config)#no ip domain-lookup R1(config)#line console 0 R1(config-line)#logging synchronous R1(config-line)#exec-timeout 0 R1(config-line)#exit |
| R1(config)#int R1(config)#interface fastEthernet 0/0 Fa0/0 R1(config-if)#ip address 10.10.10.254 255.255.255.0 R1(config-if)#no shutdown R1(config-if)#exit R1(config)#interface serial 0/0 Se0/0 R1(config-if)#encapsulation hdlc R1(config-if)#bandwidth 1024 R1(config-if)#clock rate 1024000 Unknown clock rate R1(config-if)#clock rate ? Speed (bits per second 1200 2400 4800 9600 19200 38400 56000 64000 72000 125000 128000 148000 250000 500000 800000 1000000 (1024000이랑 제일 가까운거) 1300000 2000000 4000000 <300-4000000> Choose clockrate from list above R1(config-if)#clock rate 1000000 R1(config-if)#ip address 12.0.0.1 255.255.255.0 R1(config-if)#no shutdown R1(config-if)#exit R1(config)#interface serial 0/1 Se0/1 R1(config-if)#encapsulation hdlc R1(config-if)#bandwidth 1024 R1(config-if)#clock rate 1000000 R1(config-if)#ip address 13.0.0.1 255.255.255.0 R1(config-if)#no shutdown R1(config-if)#end R1#wr me Building configuration... [OK] |
R2 기본설정
| Router>enable Router#conf t Router(config)#hostname R2 R2(config)#no ip domain-lookup R2(config)#line console 0 R2(config-line)#logging synchronous R2(config-line)#exec-timeout 0 R2(config-line)#exit R2(config)#interface serial 0/0 Se0/0 R2(config-if)#encapsulation hdlc R2(config-if)#bandwidth 1024 R2(config-if)#ip address 12.0.0.2 255.255.255.0 R2(config-if)#no shutdown R2(config-if)#exit R2(config)#interface serial 0/1 Se0/1 R2(config-if)#clock rate 1000000 R2(config-if)#ip address 24.0.0.1 255.255.255.0 R2(config-if)#no sh R2(config-if)#end R2#wr me Building configuration... [OK] |
R3 기본설정
| Router>enable Router#conf t Router(config)#hostname R3 R3(config)#no ip domain-lookup R3(config)#line console 0 R3(config-line)#logging sy R3(config-line)#logging synchronous R3(config-line)#exec-timeout 0 R3(config-line)#exit R3(config)#interface serial 0/0 Se0/0 R3(config-if)#encapsulation hdlc R3(config-if)#bandwidth 1024 R3(config-if)#ip address 13.0.0.2 255.255.255.0 R3(config-if)#no sh R3(config-if)#exit R3(config)#interface serial 0/1 Se0/1 R3(config-if)#encapsulation hdlc R3(config-if)#bandwidth 1024 R3(config-if)#clock rate 1000000 R3(config-if)#ip address 34.0.0.1 255.255.255.0 R3(config-if)#no shutdown R3(config-if)#end R3#wr me Building configuration... [OK] |
| Router>enable Router#conf t Router(config)#hostname R4 R4(config)#no ip domain-lookup R4(config)#line console 0 R4(config-line)#logging synchronous R4(config-line)#exec-timeout 0 R4(config-line)#exit R4(config)#interface fastEthernet 0/0 Fa0/0 R4(config-if)#ip address 20.20.20.254 255.255.255.0 R4(config-if)#no shutdown R4(config-if)#exit R4(config)#interface serial 0/0 Se0/0 R4(config-if)#encapsulation hdlc R4(config-if)#bandwidth 1024 R4(config-if)#ip address 24.0.0.2 255.255.255.0 R4(config-if)#no shutdown R4(config-if)#exit R4(config)#interface serial 0/1 Se0/1 R4(config-if)#encapsulation hdlc R4(config-if)#bandwidth 1024 R4(config-if)#ip address 34.0.0.2 255.255.255.0 R4(config-if)#no shutdown R4#wr me Building configuration... [OK] |
이처럼 커넥트 네트워크 연결은 완성!
| R1#SHOW IP ROUTE Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area * - candidate default, U - per-user static route, o - ODR P - periodic downloaded static route Gateway of last resort is not set 10.0.0.0/24 is subnetted, 1 subnets C 10.10.10.0 is directly connected, FastEthernet0/0 12.0.0.0/24 is subnetted, 1 subnets C 12.0.0.0 is directly connected, Serial0/0 13.0.0.0/24 is subnetted, 1 subnets C 13.0.0.0 is directly connected, Serial0/1 R1#conf t R1(config)#router ospf 1 R1(config-router)#network 10.10.10.254 0.0.0.255 area 0 R1(config-router)#network 12.0.0.1 0.0.0.255 area 0 R1(config-router)#network 13.0.0.1 0.0.0.255 area 0 R1(config-router)#passive-interface fastEthernet 0/0 R1(config)#end R1#wr me Building configuration... [OK] |
| R2#conf t R2(config)#router ospf 1 R2(config-router)#network 12.0.0.2 0.0.0.255 area 0 R2(config-router)#network 24.0.0.1 0.0.0.255 area 0 R2(config-router)#network 24.0.0.1 0.0.0.255 area 0 R2(config-router)#end R2#wr me Building configuration... [OK] |
| R3#conf t R3(config)#router ospf 1 R3(config-router)#network 13.0.0.2 0.0.0.255 area 0 R3(config-router)#network 34.0.0.1 0.0.0.255 area 0 R3(config-router)#end R3#wr me Building configuration... [OK] |
| R4#conf t R4(config)#router ospf 1 R4(config-router)#network 20.20.20.254 0.0.0.255 area 0 R4(config-router)#network 24.0.0.2 0.0.0.255 area 0 R4(config-router)#network 34.0.0.2 0.0.0.255 area 0 R4(config-router)#passive-interface fastEthernet 0/0 R4(config-router)#end R4# wr me Building configuration... [OK] R4#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area * - candidate default, U - per-user static route, o - ODR P - periodic downloaded static route Gateway of last resort is not set 10.0.0.0/24 is subnetted, 1 subnets O 10.10.10.0 [110/195] via 24.0.0.1, 00:00:11, Serial0/0 [110/195] via 34.0.0.1, 00:00:11, Serial0/1 12.0.0.0/24 is subnetted, 1 subnets O 12.0.0.0 [110/194] via 24.0.0.1, 00:00:22, Serial0/0 13.0.0.0/24 is subnetted, 1 subnets O 13.0.0.0 [110/194] via 34.0.0.1, 00:00:11, Serial0/1 20.0.0.0/24 is subnetted, 1 subnets C 20.20.20.0 is directly connected, FastEthernet0/0 24.0.0.0/24 is subnetted, 1 subnets C 24.0.0.0 is directly connected, Serial0/0 34.0.0.0/24 is subnetted, 1 subnets C 34.0.0.0 is directly connected, Serial0/1 |
마지막으로 왼쪽, 오른쪽에 ping으로 확인
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