네트워크(7) : OSPF(2)

OSPF

OSPF(Open Shortest Path First) :
다이나믹 라우팅 프로토콜(Dynamic Routing Protocol)로, 링크 상태를 확인해 최단 경로를 찾고 패킷을 전달해주는 프로토콜.
IGP(Interior Gateway Protocol)로, 주로 단일 자율 시스템(AS) 내부에서 네트워크 장치 간의 경로를 찾기 위해 사용.

R1

conf t

int lo0
ip add 1.1.1.1 255.255.255.0

int s1/0
ip add 2.2.12.1 255.255.255.0
no sh

R2

conf t

int lo0
ip add 2.2.2.2 255.255.255.0

int s1/0
ip add 2.2.12.2 255.255.255.0
no sh

int s1/1	
ip add 2.2.23.2 255.255.255.0
no sh

router ospf 1
network 2.2.23.0 0.0.0.255 area 0

R3

conf t

int lo0
ip add 3.3.3.3 255.255.255.0

int s1/1
ip add 2.2.23.3 255.255.255.0
no sh

int s1/2	
ip add 2.2.34.3 255.255.255.0
no sh

router ospf 1
network 2.2.23.0 0.0.0.255 area 0
network 2.2.34.0 0.0.0.255 area 0

R4

conf t

int lo0
ip add 4.4.4.4 255.255.255.0

int s1/2
ip add 2.2.34.4 255.255.255.0
no sh

int s1/3	
ip add 2.2.45.4 255.255.255.0
no sh

router ospf 1
network 2.2.34.0 0.0.0.255 area 0

R5

conf t

int lo0
ip add 5.5.5.5 255.255.255.0

int s1/3
ip add 2.2.45.5 255.255.255.0
no sh