VRRP 이론 및 실습

VRRP
게이트웨이 이중화 프로토콜로 인터페이스에 설정된 실제 IP주소를 가상 IP주소로 사용

 

 

Topology

 

 

 

Command

VRRP를 사용하여VLAN 10은 R1의 라우터 VLAN 20은 R2의 라우터의 경로를 이용하도록 하는데, 기존 경로를 사용할 수 없을 시 다른 경로로 대체되도록 테스트

 

 

-R1-

interface Vlan10

 ip address 172.16.10.1 255.255.255.0

 vrrp 1 ip 172.16.10.254

 vrrp 1 preempt delay minimum 180

 vrrp 1 priority 120

 vrrp 1 track 2 decrement 30

 standby version 2

!

interface Vlan20

 ip address 172.16.20.2 255.255.255.0

 vrrp 2 ip 172.16.20.254

 vrrp 2 timers learn

 standby version 2

!

 

-R2-

interface Vlan10

 ip address 172.16.10.2 255.255.255.0

 vrrp 1 ip 172.16.10.254

 vrrp 1 timers learn

 standby version 2

!

interface Vlan20

 ip address 172.16.20.1 255.255.255.0

 vrrp 2 ip 172.16.20.254

 vrrp 2 preempt delay minimum 180

 vrrp 2 priority 120

 vrrp 2 track 2 decrement 30

 standby version 2

 

-R3-

interface FastEthernet0/0

 switchport mode trunk

!

interface FastEthernet0/1

 switchport mode trunk

!

interface FastEthernet0/2

 switchport access vlan 10

!

interface FastEthernet0/3

 switchport access vlan 20

 

-R4-

interface FastEthernet0/0

 ip address 192.168.1.2 255.255.255.252

 duplex auto

 speed auto

!

interface FastEthernet1/0

 ip address 192.168.1.5 255.255.255.252

 duplex auto

 speed auto

!

interface Serial2/0

 ip address 100.100.100.1 255.255.255.252

 serial restart-delay 0

!

router ospf 1

 log-adjacency-changes

 network 100.100.100.0 0.0.0.255 area 0

 network 192.168.1.0 0.0.0.255 area 0

 

-R5-

interface Serial0/2

 ip address 100.100.100.2 255.255.255.0

 serial restart-delay 0

!

router ospf 1

 log-adjacency-changes

 network 100.100.100.0 0.0.0.255 area 0

 

-R6-

interface FastEthernet0/0

 ip address 172.16.10.10 255.255.255.0

 no ip route-cache

 duplex auto

 speed auto

!

ip default-gateway 172.16.10.1

 

 

 

 

Check

R1#show vrrp brief

HSRP에서의 Active가 VRRP에서는 Master Standby가 Backup 으로 표현

 

 

R2#show vrrp brief​