linksys wireless router network address

Two internet connection One linksys wireless router and a ubuntu firewall?

Hi i have two internet connection one is holding public ip address and another is for only backup when the public ip address internet line is down. i have a linksys router and a ubuntu firewall. how can i configure my network, where if one internet is down then another will activate.

dial the routers private i.p. address linksys…………
192.168.1.1 is yours.
password………………………..
admin
username……………….
admin

goto the advanced gonfig and there it is dmz demilitarized zone. turn that on, that the router can exchange data between the two wires so if one goes down the data is emmediately jumped to the other. like tron XD. otherwise it does it automatically? driver updates are a must.

router