i am trying to achieve a load sharing with cisco 837. The topology is the one showed below:
I want to track each connection so that if for example there is not connectivity through modem/router, this route get deleted from the routing table. So i have created the ip slas:
ip sla monitor 1
type echo protocol ipIcmpEcho 188.8.131.52 source-interface Dialer0
ip sla monitor schedule 1 life forever start-time now
ip sla monitor 2
type echo protocol ipIcmpEcho 184.108.40.206 source-interface Ethernet2
ip sla monitor schedule 2 life forever start-time now
track 1 rtr 1 reachability
track 2 rtr 2 reachability
The first sla is for checking that there is connectivity via ADSL and the second that there is connectivity through the other modem/router (because eth 2 could be up but modem/router has lost internet connectivity)
and then i added two default routes that use the track objects:
ip route 0.0.0.0 0.0.0.0 Dialer0 track 1
ip route 0.0.0.0 0.0.0.0 192.168.1.254 track 2
The result is that the track objects are always down because (???) there is no route for the packets and the debug ip packet commend shows:
s=192.168.1.253 (local), d=220.127.116.11, len 64, unroutable
even though the modem/router is reachable and has a valid connection to the Internet. Does anyone have any idea how i can override this problem?
Thanks my friend...Your solution seems to work great. If you have not problem i would like to mane another question. I have read that load balancing may cause some problems with https site (e.g. e-banking). Is there any way to force the specific traffic to follow a specific road (when this "road" ia active) but auto failover to the other exit when the first is down?
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