picked 180.40.7.134 so we didn't have to remove HSRP or VRRP


R3#sh run | b track
track 2 ip route 20.10.2.0 255.255.255.0 reachability
!
track 3 ip route 20.10.1.0 255.255.255.0 reachability
!
!
!
!
interface FastEthernet0/0
 ip address 180.40.7.129 255.255.255.224
 ip policy route-map Prob1
 duplex auto
 speed auto
 vrrp 1 ip 180.40.7.133
 vrrp 1 priority 199
 glbp 1 ip 180.40.7.134
 glbp 1 priority 150
 glbp 1 preempt
 glbp 1 weighting 100 lower 90
 glbp 1 weighting track 1 decrement 50
 glbp 1 weighting track 3 decrement 50
 standby 71 ip 180.40.7.132
 standby 71 priority 199
 standby 71 preempt
 standby 71 track Serial1/2 100
 standby 71 track 2 decrement 101
!


R7#sh run | b track
track 1 ip route 20.10.1.0 255.255.255.0 reachability
!
!
interface FastEthernet0/1
 ip address 180.40.7.131 255.255.255.224
 speed auto
 half-duplex
 vrrp 1 ip 180.40.7.133
 glbp 1 ip 180.40.7.134
 glbp 1 weighting 100 lower 90
 glbp 1 weighting track 1 decrement 50
 standby 71 ip 180.40.7.132
 standby 71 preempt
 service-policy output Prob6
!