Saturday, 1 April 2017

Static route configuration with Track





R1:-

interface FastEthernet0/0
 ip address 12.12.12.1 255.255.255.0
no shut

ip route 0.0.0.0 0.0.0.0 12.12.12.2 track 10

ip sla 10
 icmp-echo 12.12.12.2
ip sla schedule 10 life forever start-time now


track 10 ip sla 10 reachability

R2:-

interface FastEthernet0/0
 ip address 12.12.12.2 255.255.255.0
no shut

verification:-

R1# show track 10
Track 10
  IP SLA 10 reachability
  Reachability is Up
    4 changes, last change 00:02:43
  Latest operation return code: OK
  Latest RTT (millisecs) 18
  Tracked by:
    STATIC-IP-ROUTING 0
R1#

R1#sh ip sla statistics

Round Trip Time (RTT) for       Index 10
Type of operation: icmp-echo

R1#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
       + - replicated route, % - next hop override

Gateway of last resort is 12.12.12.2 to network 0.0.0.0

S*    0.0.0.0/0 [1/0] via 12.12.12.2
      12.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        12.12.12.0/24 is directly connected, FastEthernet0/0
L        12.12.12.1/32 is directly connected, FastEthernet0/0
R1#
        Latest RTT: 32 ms
Latest operation start time: *14:58:56.863 UTC Sat Apr 1 2017
Latest operation return code: OK
Number of successes: 5
Number of failures: 3
Operation time to live: Forever

R1#sh ip route 0.0.0.0
Routing entry for 0.0.0.0/0, supernet
  Known via "static", distance 1, metric 0, candidate default path
  Routing Descriptor Blocks:
  * 12.12.12.2
      Route metric is 0, traffic share count is 1
R1#

Test1:- Remove Ip from R2

R2(config)#int fa0/0
R2(config-if)#no ip add
R2(config-if)#

Verification:-


R1# show track 10
*Apr  1 15:01:04.151: %TRACKING-5-STATE: 10 ip sla 10 reachability Up->Down
R1# show track 10
Track 10
  IP SLA 10 reachability
  Reachability is Down
    5 changes, last change 00:00:10
  Latest operation return code: Timeout
  Tracked by:

R1#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
       + - replicated route, % - next hop override

Gateway of last resort is not set

      12.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        12.12.12.0/24 is directly connected, FastEthernet0/0
L        12.12.12.1/32 is directly connected, FastEthernet0/0

R1#

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