To run VRRP in Local LAN , Last mile (Wan Link) is Fast Ethernet with Maipu routers.
Description : TRACK / RTR function is used to track remote server IP from Master router, as the link down the track function will detect the server status is unavailable, It will reduce VRRP priority by 20, In result Master will become backup. Backup will change to Master.
As the link restored, the highest priority will become master.
This solution is recommended for Wan terminated on FastEthernet, Since Fast Ethernet interface link status will is not down every time in link failure.
Topology:
Master Router Config :
.................
interface fastethernet0
description ### WAN ###
ip address 10.1.1.1 255.255.255.252
load-interval 30
exit
interface fastethernet1
description ### LOCAL LAN ###
ip address 192.168.1.98 255.255.255.248
load-interval 30
vrrp 10 ip 192.168.1.100
vrrp 10 preempt
vrrp 10 priority 110
vrrp 10 track 1 20
exit
ip route 0.0.0.0 0.0.0.0 10.1.1.2
track 1
rtr 1
logic operator AND
exit
rtr 1 icmpecho
set 192.168.10.5 1 70 2 10 extend 192.168.1.98
log type local 100
exit
#### testing the server IP 192.168.10.5 availability from LAN 192.168.1.98, If it is unreachable then the VRRP will reduce the priority by 20 (110-20 = 90) ####
rtr group 1
member 1
exit
### Binding rtr entity with group ###
rtr schedule 1 group 1 start now ageout 6000 life forever
### Starting rtr ###
.........
End
Backup Router Config :
......
interface fastethernet0
description ### WAN ###
ip address 10.2.2.1 255.255.255.252
exit
interface fastethernet1
description ### LOCAL LAN ###
ip address 192.168.1.99 255.255.255.248
vrrp 10 ip 192.168.1.100
vrrp 10 preempt
exit
ip route 0.0.0.0 0.0.0.0 10.2.2.2
....
End
Devices Used :
Maipu 1800 -3
IOS : rp5-i-6.1.25(REL).bin
SHOW COMMANDS
Show rtr entity 1
Show rtr group 1
Show vrrp
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