Gateway / Link 이중화 실습

내가 한거

PC1
ip 10.10.10.1 255.255.255.0 10.10.10.254

PC2
ip 20.20.20.1 255.255.255.0 20.20.20.254

R1
conf t
int fa 0/0
ip addr 10.10.10.100 255.255.255.0
no shu
int fa 0/1
ip addr 30.30.30.1 255.255.255.0
no shu
int fa 0/0
vrrp 1 ip 10.10.10.254
vrrp 1 priority 120
vrrp 1 timers advertise 5
exit
int fa 0/0
vrrp 1 track 1 decrement 30
vrrp 1 preempt delay minimum 5
router ospf 1
network 10.10.10.0 0.0.0.255 area 1
network 30.30.30.0 0.0.0.255 area 1

R2
conf t
int fa 0/0
ip addr 10.10.10.200 255.255.255.0
no shu
int fa 0/1
ip addr 40.40.40.2 255.255.255.0
no shu
int fa 0/0
vrrp 1 ip 10.10.10.254
vrrp 1 priority 110
vrrp 1 timers advertise 5
exit
router ospf 1
network 10.10.10.0 0.0.0.255 area 1
network 40.40.40.0 0.0.0.255 area 1

R3
conf t
int fa 0/0
ip addr 30.30.30.3 255.255.255.0
no shu
int fa 0/1
ip addr 40.40.40.3 255.255.255.0
no shu
int fa 1/0
ip addr 100.100.100.3 255.255.255.0
no shu
int fa 2/0
ip addr 200.200.200.3 255.255.255.0
no shu
ip sla 1
icmp-echo 100.100.100.4 source-ip 100.100.100.3
timeout 3000
frequency 4
exit
ip sla schedule 1 life forever start-time now
track 1 rtr 1 reachability
ip route 20.20.20.0 255.255.255.0 100.100.100.4 track 1
ip route 20.20.20.0 255.255.255.0 200.200.200.4 100
router ospf 1
network 30.30.30.0 0.0.0.255 area 1
network 40.40.40.0 0.0.0.255 area 1
network 100.100.100.0 0.0.0.255 area 1
network 200.200.200.0 0.0.0.255 area 1

R4
conf t
int fa 0/0
ip addr 20.20.20.254 255.255.255.0
no shu
int fa 1/0
ip addr 100.100.100.4 255.255.255.0
no shu
int fa 2/0
ip addr 200.200.200.4 255.255.255.0
no shu
ip sla 2
icmp-echo 100.100.100.3 source-ip 100.100.100.4
timeout 3000
frequency 4
exit
ip sla schedule 2 life forever start-time now
track 2 rtr 2 reachability
ip route 10.10.10.0 255.255.255.0 100.100.100.3 track 2
ip route 10.10.10.0 255.255.255.0 200.200.200.3 100
router ospf 1
network 20.20.20.0 0.0.0.255 area 1
network 100.100.100.0 0.0.0.255 area 1
network 200.200.200.0 0.0.0.255 area 1

 

R3와 R4의 주경로에서는 서로 장애 감지 여부를 확인하기 위해 icmp-echo를 보내면서 상태를 확인하고 있음

R1의 주경로와 R3와 R4의 주경로를 통해서 PC1에서 PC2로 PING 통신이 가능한 모습

R1의 주경로와 R3와 R4의 보조경로로 PING통신을 진행 (R3의 주경로는 Shutdonw진행함)

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강사님 풀이

PC1
ip 10.10.10.1 255.255.255.0 10.10.10.254
PC2
ip 20.20.20.1 255.255.255.0 20.20.20.254

R1
conf t
track 1 int fa 0/1 line-protocol
int fa 0/0
ip addr 10.10.10.100 255.255.255.0
vrrp 1 ip 10.10.10.254
vrrp 1 priority 120
vrrp 1 timer advertise 5
vrrp 1 track 1 decrement 30
vrrp 1 preempt delay minimum 5
no shu
int fa 0/1
ip addr 30.30.30.1 255.255.255.0
no shu
router ospf 1
network 10.10.10.0 0.0.0.255 area 1
network 30.30.30.0 0.0.0.255 area 1
ip route 0.0.0.0 0.0.0.0 30.30.30.2

R2
conf t
int fa 0/0
ip addr 10.10.10.200 255.255.255.0
vrrp 1 ip 10.10.10.254
vrrp 1 priority 100
vrrp 1 timer advertise 5
no shu
int fa 0/1
ip addr 40.40.40.1 255.255.255.0
no shu
router ospf 1
network 10.10.10.0 0.0.0.255 area 1
network 40.40.40.0 0.0.0.255 area 1
ip route 0.0.0.0 0.0.0.0 40.40.40.2

R3
conf t
int fa 0/0
ip addr 30.30.30.2 255.255.255.0
no shu
int fa 0/1
ip addr 40.40.40.2 255.255.255.0
no shu
int fa 1/0
ip addr 100.100.100.1 255.255.255.0
no shu
int fa 2/0
ip addr 200.200.200.1 255.255.255.0
no shu
router ospf 1
network 30.30.30.0 0.0.0.255 area 1
network 40.40.40.0 0.0.0.255 area 1
exit
ip sla 1
icmp-echo 100.100.100.2 source-ip 100.100.100.1
timeout 3000
frequency 4
exit
ip sla schedule 1 life forever start-time now
track 1 rtr 1 reachability
ip route 20.20.20.0 255.255.255.0 100.100.100.2 track 1
ip route 20.20.20.0 255.255.255.0 200.200.200.2 100


R4
conf t
int fa 0/0
ip addr 20.20.20.254 255.255.255.0
no shu
int fa 1/0
ip addr 100.100.100.2 255.255.255.0
no shu
int fa 2/0
ip addr 200.200.200.2 255.255.255.0
no shu
ip sla 1
icmp-echo 100.100.100.1 source-ip 100.100.100.2
timeout 3000
frequency 4
exit
ip sla schedule 1 life forever start-time now
track 1 rtr 1 reachability
ip route 10.10.10.0 255.255.255.0 100.100.100.1 track 1
ip route 10.10.10.0 255.255.255.0 200.200.200.1 100