I have two lines that I am using to get out to the internet. One is a 3G card we NAT all inside devices out with this command...
ip nat inside source list 110 interface Cellular0/0/0 overload
the 110 access list is a permit all
The other connection, which is our back-up line goes to a satellite modem via FA0/1 it's NAT statement is this...
ip nat inside source list 112 interface FastEthernet0/0 overload
Same thing on the ACL.
I also have 2 default routes...
ip route 0.0.0.0 0.0.0.0 Cellular0/0/0 99 track 1 (track command is to line-protocol on cell card)
ip route 0.0.0.0 0.0.0.0 18.104.22.168 100
Here's my question, If the Cellular card goes down and I want fa0/1 to pick-up and work as a secondary how would I do it? I thought having all these commands would cause it to work but I can shutdown the cellular card and fa0/1 will not pick up.