I have got a Cisco 1751 router with a WIC1T card for serial interface.
On the Serial interface, i have my leased line internet modem connected through v.35 cable and configured static WAN IP given by ISP
I take internet on FastEthernet interface with the static LAN IP given by ISP
I want to take an ADSL from another ISP and configure on the router so that when the leased line is down, i could either manually start ADSL or automatically.
I also have a spare 1841 router if required.
I am not an expert on routers. Please help me.