Резервирование HSRP в Cisco

Недавно познакомился с протоколом резервирования active/standby HSRP.
Выкладываю, чтобы не забыть!



HSRP1 config:
interface GigabitEthernet0/0
ip address 192.168.1.1 255.255.255.0
duplex auto
speed auto
standby version 2
standby 1 ip 192.168.1.254
standby 1 priority 105
standby 1 preempt
standby 1 track GigabitEthernet0/1
standby preempt
!
interface GigabitEthernet0/1
ip address 1.1.1.1 255.255.255.0
duplex auto

speed auto


HSRP2 config:
interface GigabitEthernet0/0
ip address 192.168.1.2 255.255.255.0
duplex auto
speed auto
standby version 2
standby 1 ip 192.168.1.254
standby 1 preempt
standby 1 track GigabitEthernet0/1
standby preempt
!
interface GigabitEthernet0/1
ip address 1.1.1.2 255.255.255.0
duplex auto

speed auto

ISP config:
interface GigabitEthernet0/0
ip address 1.1.1.3 255.255.255.248
duplex auto
speed auto
!
interface GigabitEthernet0/1
no ip address
duplex auto
speed auto
!
interface Vlan1
no ip address
shutdown
!
ip classless
ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0

!

PC settings:
IP: 192.168.1.3
MASK: 255.255.255.0
GW: 192.168.1.254


Пример.