[Cisco 기초] Static_Route
## Static Route [바탕 / 굵게 / 16]
-해당 Router에 관리자가 목적지 경로를 일일히 입력하는 방식
-특징
.일반적으로 소규모 네트워크 환경에서 사용된다.
.네트워크의 변경이 일어나지 않는 환경에 적합
.모든 네트워크의 경로를 관리자에 의해 선출되므로 신뢰적인 통신을 실시
.장비를 효율적으로 사용
-단점
.대규모 네트워크 , 네트워크의 변경이 빈번히 일어나는 환경에서는 비효율적이다.
.사용하는 경로에 장애 발생시 해당 경로를 수정 , 복구하기전까지 통신이 실시되지 않는다.
[설정 방법]
Router(config)# ip route [목적지 Network] [SubnetMask] [Next-hop IP]
OR
Router(config)# ip route [목적지 Network] [SubnetMask] [Connected Interface]
---------------------------------------------------------------------------------------
[실습 Topology]
192.168.12.0/24 192.168.23.0/24
R1----------------------R2----------------------R3
| | |
192.168.1.0/24 192.168.2.0/24 192.168.3.0/24
-Topology를 참조하여 모든 네트워크 대역에 IP를 할당하시오
-LAN구간에서 PC는 가장 첫번째 주소부터 할당을 실시하며 Gateway는 가장 마지막 주소를 사용
-WAN구간에서는 HDLC를 사용하며 대역폭은 64K를 사용해야한다.
# R1
R1(config)# interface fastethernet 0/0
R1(config-if)# no shutdown
R1(config-if)# ip address 192.168.1.254 255.255.255.0
!
R1(config)# interface serial 1/0
R1(config-if)# no shutdown
R1(config-if)# encapsulation hdlc
R1(config-if)# bandwidth 64
R1(config-if)# ip address 192.168.12.1 255.255.255.0
# R2
R2(config)# interface fastethernet 0/0
R2(config-if)# no shutdown
R2(config-if)# ip address 192.168.2.254 255.255.255.0
!
R2(config)# interface serial 1/1
R2(config-if)# no shutdown
R2(config-if)# encapsulation hdlc
R2(config-if)# bandwidth 64
R2(config-if)# clock rate 64000
R2(config-if)# ip address 192.168.12.2 255.255.255.0
!
R2(config)# interface serial 1/0
R2(config-if)# no shutdown
R2(config-if)# encapsulation hdlc
R2(config-if)# bandwidth 64
R2(config-if)# clock rate 64000
R2(config-if)# ip address 192.168.23.2 255.255.255.0
# R3
R3(config)# interface fastethernet 0/0
R3(config-if)# no shutdown
R3(config-if)# ip address 192.168.3.254 255.255.255.0
!
R3(config)# interface serial 1/1
R3(config-if)# no shutdown
R3(config-if)# encapsulation hdlc
R3(config-if)# bandwidth 64
R3(config-if)# ip address 192.168.23.3 255.255.255.0
!
[Static Route 설정 : Next-hop 지정 방식]
# R1
R1(config)# ip route 192.168.2.0 255.255.255.0 192.168.12.2
R1(config)# ip route 192.168.3.0 255.255.255.0 192.168.12.2
R1(config)# ip route 192.168.23.0 255.255.255.0 192.168.12.2
# R2
R2(config)# ip route 192.168.1.0 255.255.255.0 192.168.12.1
R2(config)# ip route 192.168.3.0 255.255.255.0 192.168.23.3
# R3
R3(config)# ip route 192.168.1.0 255.255.255.0 192.168.23.2
R3(config)# ip route 192.168.2.0 255.255.255.0 192.168.23.2
R3(config)# ip route 192.168.12.0 255.255.255.0 192.168.23.2
정보확인
R1# show ip route
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
C 192.168.12.0/24 is directly connected, Serial1/0
S 192.168.23.0/24 [1/0] via 192.168.12.2
R2# show ip route
S 192.168.1.0/24 [1/0] via 192.168.12.1
C 192.168.2.0/24 is directly connected, FastEthernet0/0
S 192.168.3.0/24 [1/0] via 192.168.23.3
C 192.168.12.0/24 is directly connected, Serial1/1
C 192.168.23.0/24 is directly connected, Serial1/0
R3# show ip route
S 192.168.1.0/24 [1/0] via 192.168.23.2
S 192.168.2.0/24 [1/0] via 192.168.23.2
C 192.168.3.0/24 is directly connected, FastEthernet0/0
S 192.168.12.0/24 [1/0] via 192.168.23.2
C 192.168.23.0/24 is directly connected, Serial1/1
==========================================================================================
[실습 Topology]
192.168.12.0/24 192.168.23.0/24
R1----------------------R2----------------------R3
| | |
192.168.1.0/24 192.168.2.0/24 192.168.3.0/24
[Static Route 설정 : Interface 지정 방식]
# R1
R1(config)# ip route 192.168.2.0 255.255.255.0 serial 1/0
R1(config)# ip route 192.168.3.0 255.255.255.0 serial 1/0
R1(config)# ip route 192.168.23.0 255.255.255.0 serial 1/0
# R2
R2(config)# ip route 192.168.1.0 255.255.255.0 serial 1/1
R2(config)# ip route 192.168.3.0 255.255.255.0 serial 1/0
# R3
R3(config)# ip route 192.168.1.0 255.255.255.0 serial 1/1
R3(config)# ip route 192.168.2.0 255.255.255.0 serial 1/1
R3(config)# ip route 192.168.12.0 255.255.255.0 serial 1/1
정보확인
R1# show ip route
C 192.168.1.0/24 is directly connected, FastEthernet0/0
S 192.168.2.0/24 is directly connected, Serial1/0
S 192.168.3.0/24 is directly connected, Serial1/0
C 192.168.12.0/24 is directly connected, Serial1/0
S 192.168.23.0/24 is directly connected, Serial1/0
R2# show ip route
S 192.168.1.0/24 is directly connected, Serial1/1
C 192.168.2.0/24 is directly connected, FastEthernet0/0
S 192.168.3.0/24 is directly connected, Serial1/0
C 192.168.12.0/24 is directly connected, Serial1/1
C 192.168.23.0/24 is directly connected, Serial1/0
R3# show ip route
S 192.168.1.0/24 is directly connected, Serial1/1
S 192.168.2.0/24 is directly connected, Serial1/1
C 192.168.3.0/24 is directly connected, FastEthernet0/0
S 192.168.12.0/24 is directly connected, Serial1/1
C 192.168.23.0/24 is directly connected, Serial1/1