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IP SLA not injecting tracked route


Hi People,

I have a router which has 2 ISP connections into it. I have configured an IP SLA to ping an address out the primary ISP interface and install a default route when reachability is up.

The problem is, the reachability status is up, the IP SLA stats are showing successful but it's not installing the tracked route.

See config below:

IP SLA Config to ping

CH-BARROW-CMERTR01#sh run | se ip sla

track 1 ip sla 1 reachability

delay down 10

ip sla 1

icmp-echo source-interface FastEthernet0/0

timeout 3000

frequency 3

ip sla schedule 1 life forever start-time now

Shows results as successful

CH-BARROW-CMERTR01#sh ip sla stat

IPSLAs Latest Operation Statistics

IPSLA operation id: 1

Latest RTT: 16 milliseconds

Latest operation start time: 08:42:03.490 BST Tue Jul 21 2009

Latest operation return code: OK

Number of successes: 976

Number of failures: 0

Operation time to live: Forever

Shows track opject as up

CH-BARROW-CMERTR01#sh track 1

Track 1

IP SLA 1 reachability

Reachability is Up

3 changes, last change 02:22:46

Delay down 10 secs

Latest operation return code: OK

Latest RTT (millisecs) 20

Tracked by:


configured routes from running config, primary ISP as tracekd route and secondary ISP with AD of 20. Static route to to ensure it goes out the correct interface

CH-BARROW-CMERTR01#sh run | se ip route

ip route track 1

ip route Dialer1 20

ip route Service-Engine0/0

ip route

ip route FastEthernet0/0

Shows default route as the dialer to the secondary ISP

Gateway of last resort is to network

C is directly connected, FastEthernet0/1.10 is subnetted, 1 subnets

C is directly connected, Dialer1 is variably subnetted, 2 subnets, 2 masks

S [254/0] via, FastEthernet0/0

C is directly connected, FastEthernet0/0 is subnetted, 1 subnets

C is directly connected, Dialer1 is variably subnetted, 2 subnets, 2 masks

S is directly connected, Service-Engine0/0

C is directly connected, FastEthernet0/1.20

S [1/0] via is subnetted, 1 subnets

S is directly connected, FastEthernet0/0

S* is directly connected, Dialer1

shows the tracked route as up

CH-BARROW-CMERTR01#sh ip route track-table

ip route track 1 state is [up]


The strange thing is that I have similar config on other sites and they're working fine (I hope) so any advise from a fresh set of eyes would be appreciated.

Thanks in advance,


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