HSRP

Goal : Whenever up-link fail in HSRP active router, R4 still able to communicate with IP Loopback R1.

 

Scenario :

- Create HSRP with virtual ip gateway 192.168.1.1

- R3 as Active router & R2 as Standby router

- Create 2 tracking object + IP SLA

- 1 track is used when interface fa1/0 in R3 fail -> R4 as client still able to ping IP Loopback R1

- 1 track is used when next-hop 192.168.13.1 is unreachable -> R4 as client still able to ping IP Loopback R1

 

Configuration :

R2

interface FastEthernet0/0

 ip address 192.168.1.2 255.255.255.0

 standby 99 ip 192.168.1.1

 standby 99 timers msec 100 msec 300

 standby 99 preempt delay minimum 10

 standby 99 authentication md5 key-string MDPA55

 

 

R3

ip sla monitor 1

 type echo protocol ipIcmpEcho 192.168.13.1

 frequency 5

ip sla monitor schedule 1 life forever start-time now

 

track 101 rtr 1 reachability

 

interface FastEthernet2/0

 ip address 192.168.1.3 255.255.255.0

 standby 99 ip 192.168.1.1

 standby 99 timers msec 100 msec 300

 standby 99 priority 150

 standby 99 preempt delay minimum 10

 standby 99 authentication md5 key-string MDPA55

 standby 99 track FastEthernet1/0 60

 standby 99 track 101 decrement 60

 

Verify :

- show standby 

- show standby brief

- show ip sla monitor config

- show ip sla monitor statistic

- show track

- Test ping from R4 to R1 (1.1.1.1)