Configuring Cisco Hot Standby Router Protocol (HSRP)

Goal:

Configure HSRP.

Config:

Router 1:

interface FastEthernet0/1
ip address 10.1.2.3 255.255.255.0
duplex auto
speed auto
standby preempt
standby 1 ip 10.1.2.1

standby 1 priority 105 (higher priority, will be active)
standby 1 preempt
standby 1 track FastEthernet0/0 (If fa0/0 goes down, the router priority will be decremented by the default 10)

Router 2:

interface FastEthernet0/1
ip address 10.1.2.2 255.255.255.0
duplex auto
speed auto
standby preempt
standby 1 ip 10.1.2.1
standby 1 priority 100
standby 1 preempt
standby 1 track FastEthernet0/0 (If fa0/0 goes down, the router priority will be decremented by the default 10)

Show Commands:

show standby