Hello All,

We have a backup adsl connection for if our SDSL goes down. When our primary ISP goes down the router automicly switches to our back up ISP allowing our uses to still use the internet.

We are also hosting our email and webserver in the office and we would like it so when our primary ISP goes offline clients can still access our website and mail server.

How I imagine we would do this is have two IP addresses registered for each service (example):

Website: 212.212.212.212
64.64.64.64

mail: 212.212.212.213
64.64.64.65

At the domain registrar level have DNS1 pointing to dns server at primary ISP and have DNS2 pointing to backup ISP dns.

Is this correct? If not am I close? Does any one know of any good materials on doing something like this?

Cheers for your help.

Tarran