Two wan for failover

Hello to all

I have one isp cable modem connected on MT RB450G ether1 port, port is in dhcp-client and I receve Public static IP from my ISP.
On ether2 on MT is connected adsl router with 192.168.1.1 ip addres. MT Port has static ip 192.168.1.2/24
ether3 on MT is LAN port 192.168.10.0/24

Now I like to use first internet for all trafic, and second (ADSL) for failback only if first goes down.


I like to know is it possible and how to settup MT ?

http://wiki.mikrotik.com/wiki/Advanced_Routing_Failover_without_Scripting