Shulou(Shulou.com)06/01 Report--

1. Experimental Topology

Hot Standby Router Protocol

A virtual gateway is created between the two routers, one is an active router and the other is a standby router. When the active router down, the standby router receives non-hello information within 10 seconds and replaces the active router.

2. Basic configuration

R1 configuration

Interface Serial0/0

Ip address 12.1.1.1 255.255.255.0

Interface Serial0/1

Ip address 13.1.1.1 255.255.255.0

Interface Serial0/2

Ip address 15.1.1.1 255.255.255.0

Router ospf 110

Router-id 1.1.1.1

Log-adjacency-changes

Network 12.1.1.0 0.0.0.255 area 0

Network 13.1.1.0 0.0.0.255 area 0

Network 15.1.1.0 0.0.0.255 area 0

R2 configuration

Interface Serial0/0

Ip address 12.1.1.2 255.255.255.0

Interface FastEthernet1/0

Ip address 100.1.1.2 255.255.255.0

Router ospf 110

Router-id 2.2.2.2

Network 12.1.1.0 0.0.0.255 area 0

Network 100.1.1.0 0.0.0.255 area 0

R3 configuration

Interface Serial0/1

Ip address 13.1.1.3 255.255.255.0

Interface FastEthernet1/0

Ip address 100.1.1.3 255.255.255.0

Router ospf 110

Router-id 3.3.3.3

Network 13.1.1.0 0.0.0.255 area 0

Network 100.1.1.0 0.0.0.255 area 0

R4 configuration

No ip routing

Interface FastEthernet1/0

Ip address 100.1.1.4 255.255.255.0

Ip default-gateway 100.1.1.254

R5 configuration

Interface Serial0/2

Ip address 15.1.1.5 255.255.255.0

Router ospf 110

Router-id 5.5.5.5

Network 15.1.1.0 0.0.0.255 area 0

3. Configure HSRP

R2 configuration

Interface FastEthernet1/0

Standby 1 ip 100.1.1.254

Standby 1 priority 105

Standby 1 preempt

Standby 1 track Serial0/0

R3 configuration

Interface FastEthernet1/0

Standby 1 ip 100.1.1.254

Standby 1 preempt

Standby 1 track Serial0/1

3. Test HSRP

Because R2 has a higher priority than R3, the R2-bit Active router and the R3-bit Standby router are now available.

The MAC address format corresponding to the virtual gateway IP is

0000.0c 07.ac 01

OUI HSRP HSRP group

Since then, R3 will become an active router after either R2's f1scar0 or s0Uniq0 is turned off, and R2 will become an active router again because it is configured with preemption when it is restored.

In this case, only one router is forwarding data. In order to make better use of these two routers, we can configure two sets of HSRP. One set of default gateway is R2, and the other is R3, so that the effect of load balancing can be achieved.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.