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Static Routing & Default Routing & RIP 실습 본문

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Static Routing & Default Routing & RIP 실습

어푸어푸🌊 2022. 6. 15. 23:41

조건1) serial interface 로 연결된 구간 : A 클래스로 구성(classful)

           fastethernet interface 로 연결된 구간 : B클래스 > C 클래스로 서브네팅한 네트워크 중 1개를 만들어서 구성                                       (classless)

조건2) 2개 만들기

          ①static + default route

          ②RIP

 

조건1) 에서부터 막혔다. 

B클래스에서 C클래스로 서브네팅한다고 해서 B클래스에 해당하는 주소를 설정하고 3옥텟의 2bit를 활용해서 4갈래로 서브네팅을 하려고 했는데 그렇게되면 prefix숫자가 18이 된다. 이게 무슨 일인가 싶어 동기에게 물어보니 그냥 ... prefix를 24로 해주면 그게 C클래스로 서브네팅이 된거라고 했다.. 더불어 이것저것 설명을 해주는데 내가 공부한 내용이 맞나 싶었다...나는 뭘 공부한걸까.. 깊은 좌절이 느껴졌다..

 

1) Static + Default Routing

R0]
R0(config)#int f0/0
R0(config-if)#ip address 128.100.1.254 255.255.255.0
R0(config-if)#no sh

R0(config-if)#exit
R0(config)#int s2/0
R0(config-if)#ip address 10.0.0.1 255.0.0.0
R0(config-if)#no shut

R0(config-if)#exit
R0(config)#ip route 0.0.0.0 0.0.0.0 10.0.0.2

R0#sh ip ro
C    10.0.0.0/8 is directly connected, Serial2/0
     128.100.0.0/24 is subnetted, 1 subnets
C       128.100.1.0 is directly connected, FastEthernet0/0
S*   0.0.0.0/0 [1/0] via 10.0.0.2


R01]
R01(config)#int f0/0
R01(config-if)#ip address 128.100.2.254 255.255.255.0
R01(config-if)#no shut

R01(config-if)#exit
R01(config)#int s2/0
R01(config-if)#ip address 10.0.0.2 255.0.0.0
R01(config-if)#no shut

R01(config-if)#exit
R01(config)#int s3/0
R01(config-if)#ip address 30.0.0.1 255.0.0.0
R01(config-if)#no shut

R01(config-if)#exit
R01(config)#ip route 128.100.1.0 255.255.255.0 10.0.0.1
R01(config)#ip route 128.100.3.0 255.255.255.0 20.0.0.2
R01(config)#ip route 30.0.0.0 255.0.0.0 20.0.0.2
R01(config)#ip route 128.100.4.0 255.255.255.0 20.0.0.2

R01#sh ip ro
C    10.0.0.0/8 is directly connected, Serial2/0
C    20.0.0.0/8 is directly connected, Serial3/0
S    30.0.0.0/8 [1/0] via 20.0.0.2
     128.100.0.0/24 is subnetted, 4 subnets
S       128.100.1.0 [1/0] via 10.0.0.1
C       128.100.2.0 is directly connected, FastEthernet0/0
S       128.100.3.0 [1/0] via 20.0.0.2
S       128.100.4.0 [1/0] via 20.0.0.2


R02]
R02(config)#int f0/0
R02(config-if)#ip address 128.100.3.254 255.255.255.0

R02(config-if)#no sh



R02(config-if)#exit

R02(config)#int s2/0
R02(config-if)#ip address 20.0.0.2 255.0.0.0
R02(config-if)#no sh

R02(config-if)#exit
R02(config)#int s3/0
R02(config-if)#ip address 30.0.0.1 255.0.0.0
R02(config-if)#no sh

R02(config-if)#exit
R02(config)#ip route 128.100.1.0 255.255.255.0 20.0.0.1
R02(config)#ip route 10.0.0.0 255.0.0.0 20.0.0.1
R02(config)#ip route 128.100.2.0 255.255.255.0 20.0.0.1
R02(config)#ip route 128.100.4.0 255.255.255.0 30.0.0.2

R02#sh ip ro
S    10.0.0.0/8 [1/0] via 20.0.0.1
C    20.0.0.0/8 is directly connected, Serial2/0
C    30.0.0.0/8 is directly connected, Serial3/0
     128.100.0.0/24 is subnetted, 4 subnets
S       128.100.1.0 [1/0] via 20.0.0.1
S       128.100.2.0 [1/0] via 20.0.0.1
C       128.100.3.0 is directly connected, FastEthernet0/0
S       128.100.4.0 [1/0] via 30.0.0.2


R03]
R03(config)#int f0/0
R03(config-if)#ip address 128.100.4.1 255.255.255.0
R03(config-if)#no shut

R03(config-if)#exit
R03(config)#int s2/0
R03(config-if)#ip addr 30.0.0.2 255.0.0.0
R03(config-if)#no sh

R03(config-if)#exit
R03(config)#ip route 0.0.0.0 0.0.0.0 30.0.0.1

R03#sh ip ro
C    30.0.0.0/8 is directly connected, Serial2/0
     128.100.0.0/24 is subnetted, 1 subnets
C       128.100.4.0 is directly connected, FastEthernet0/0
S*   0.0.0.0/0 [1/0] via 30.0.0.1

 

2) RIP

R0]
R0(config)#no ip route 0.0.0.0 0.0.0.0 10.0.0.2

C    10.0.0.0/8 is directly connected, Serial2/0
     128.100.0.0/24 is subnetted, 1 subnets
C       128.100.1.0 is directly connected, FastEthernet0/0

R0(config)#router rip
R0(config-router)#network 10.0.0.0
R0(config-router)#network 128.100.1.0
R0(config-router)#passive-interface f0/0
R0(config-router)#version 2


R01]
R01(config)#no ip ro 30.0.0.0 255.0.0.0 20.0.0.2
R01(config)#no ip ro 128.100.4.0 255.255.255.0 20.0.0.2
R01(config)#no ip ro 128.100.3.0 255.255.255.0 20.0.0.2
R01(config)#no ip ro 128.100.1.0 255.255.255.0 10.0.0.1

C    10.0.0.0/8 is directly connected, Serial2/0
C    20.0.0.0/8 is directly connected, Serial3/0
     128.100.0.0/24 is subnetted, 1 subnets
C       128.100.2.0 is directly connected, FastEthernet0/0

R01(config)#router rip
R01(config-router)#network 10.0.0.0
R01(config-router)#network 20.0.0.0
R01(config-router)#network 128.100.2.0
R01(config-router)#passive-int f0/0
R01(config-router)#version 2


R02]
R02(config)#no ip ro 10.0.0.0 255.0.0.0 20.0.0.1
R02(config)#no ip ro 128.100.1.0 255.255.255.0 20.0.0.1
R02(config)#no ip ro 128.100.2.0 255.255.255.0 20.0.0.1
R02(config)#no ip ro 128.100.4.0 255.255.255.0 30.0.0.2
R02(config)#router rip
R02(config-router)#network 20.0.0.0
R02(config-router)#network 30.0.0.0
R02(config-router)#network 128.100.3.0
R02(config-router)#passive-int f0/0
R02(config-router)#version 2


R03]
R03(config)#no ip ro 0.0.0.0 0.0.0.0 30.0.0.1
R03(config)#router rip
R03(config-router)#network 30.0.0.0
R03(config-router)#network 128.100.4.0
R03(config-router)#passive-int f0/0
R03(config-router)#version 2
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