I have EEM running in conjunction with a SLA. EEM and SLA works perfect after the SLA is in an up state. The logic of EEM and SLA is if the router can't ping 18.104.22.168 using the cellular interface change the tunnel to use the backup link which is an interface that is getting DHCP from the provider. If the cell connection is up it and then goes down it works exactly as expected.
The issue is if the track does come up once EEM is not kicking off. For example we moved the router to a new locaiton that doesnt have cellular. So, the router was powered off and moved. Router boots SLA goes into an unknown state but EEM never fires.
int gi 0 ip address dhcp ip access-group INTERNET_IN in ip access-group INTERNET_OUT out ip nat outside ip virtual-reassembly in no cdp enable
ip route 0.0.0.0 0.0.0.0 Cellular0 track 1 ip route 22.214.171.124 255.255.255.255 Cellular0 ip route 0.0.0.0 0.0.0.0 dhcp 25
ip access-list extende INTERNET_IN 8 permit icmp host 126.96.36.199 any
track 1 ip sla 10 reachability
ip sla 10 icmp-echo 188.8.131.52 source-interface Cellular0 frequency 60 ip sla schedule 10 life forever start-time now
Router boots SLA goes into an unknown state but EEM never fires. But the EEM wont fire because its based on an syslog message which it cant get anymore as theres no cellular link if im reading that correctly ,what is the new link if its not cellular ? you would need to alter the default route and eem to match whatever the new link is and what THE syslog messages is seen if thatS what your using as the trigger in EEM
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