Having following requirements to configure First Hop Redundancy Protocol for one environment:
1. Use least public ip addresses
2. Track Internet facing interface and BGP routes
3. Primary router is high priority and will be kept active as possible as it can.
Configuration:Â
track 1 interface GigabitEthernet0/1 line-protocol
!
track 2 ip route 0.0.0.0 0.0.0.0 reachability
!
track 3 list boolean and
 object 1
 object 2
BGP_1#sh run int g0/0
Building configuration...
Current configuration : 298 bytes
!
interface GigabitEthernet0/0
 ip address 99.46.16.162 255.255.255.192
 shutdown
 duplex auto
 speed auto
 vrrp 1 ip 99.46.16.162
 vrrp 1 timers advertise 3
 vrrp 1 timers learn
 vrrp 1 priority 120
 vrrp 1 authentication cisco
 vrrp 1 track 3 decrement 30
end
BGP_1#sh run int g0/1
Building configuration...
Current configuration : 161 bytes
!
interface GigabitEthernet0/1
 description Link with Cogeco BGP
 ip address 6.9.9.130 255.255.255.252
 ip access-group 100 in
 duplex auto
 speed auto
end
Verification:
BGP_1#show trackÂ
Track 1
 Interface GigabitEthernet0/1 line-protocol
 Line protocol is Up
  1 change, last change 00:07:27
 Tracked by:
  VRRP GigabitEthernet0/0 1
Track 2
  IP route 0.0.0.0 0.0.0.0 reachability
 Reachability is Up (BGP)
  2 changes, last change 00:02:34
 First-hop interface is GigabitEthernet0/1
Track 3
  List boolean and
 Boolean AND is Up
  4 changes, last change 00:02:34
  object 1 Up
  object 2 Up
 Tracked by:
  VRRP GigabitEthernet0/0 1
BGP_1#sh ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
    D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
    N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
    E1 - OSPF external type 1, E2 - OSPF external type 2
    i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
    ia - IS-IS inter area, * - candidate default, U - per-user static route
    o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
    + - replicated route, % - next hop override
Gateway of last resort is 6.9.9.129 to network 0.0.0.0
B* Â Â 0.0.0.0/0 [20/0] via 6.9.9.129, 11:05:07
   66.0.0.0/8 is variably subnetted, 4 subnets, 3 masks
C Â Â Â Â 6.9.9.128/30 is directly connected, GigabitEthernet0/1
L Â Â Â Â 6.9.9.130/32 is directly connected, GigabitEthernet0/1
C Â Â Â Â 66.199.44.240/29 is directly connected, GigabitEthernet0/3
L Â Â Â Â 66.199.44.241/32 is directly connected, GigabitEthernet0/3
S Â Â 99.46.16.0/24 [1/0] via 66.199.44.242
Track 1
 Interface GigabitEthernet0/1 line-protocol
 Line protocol is Up
  1 change, last change 00:07:27
 Tracked by:
  VRRP GigabitEthernet0/0 1
Track 2
  IP route 0.0.0.0 0.0.0.0 reachability
 Reachability is Up (BGP)
  2 changes, last change 00:02:34
 First-hop interface is GigabitEthernet0/1
Track 3
  List boolean and
 Boolean AND is Up
  4 changes, last change 00:02:34
  object 1 Up
  object 2 Up
 Tracked by:
  VRRP GigabitEthernet0/0 1
BGP_1#sh ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
    D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
    N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
    E1 - OSPF external type 1, E2 - OSPF external type 2
    i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
    ia - IS-IS inter area, * - candidate default, U - per-user static route
    o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
    + - replicated route, % - next hop override
Gateway of last resort is 6.9.9.129 to network 0.0.0.0
B* Â Â 0.0.0.0/0 [20/0] via 6.9.9.129, 11:05:07
   66.0.0.0/8 is variably subnetted, 4 subnets, 3 masks
C Â Â Â Â 6.9.9.128/30 is directly connected, GigabitEthernet0/1
L Â Â Â Â 6.9.9.130/32 is directly connected, GigabitEthernet0/1
C Â Â Â Â 66.199.44.240/29 is directly connected, GigabitEthernet0/3
L Â Â Â Â 66.199.44.241/32 is directly connected, GigabitEthernet0/3
S Â Â 99.46.16.0/24 [1/0] via 66.199.44.242
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