I have a Cisco 1811 with two WAN connections. I am using Track to detect down state of principal WAN interface. Everything works fine and the backup line will be up as soon as the principal line goes down.
The problem that I have is that, even when the principal line is up and running, I have data transfer on the backup interface! This data transfer costs money, because the data transfer on backup line is limited.
How can I prevent this data transfer when the first line is up?