Server with two network cards and different internet providers

[Agustin de Landa]

Hello I have a windows server 2008 r2 box with two network cards.

 

Each network card is connected to a different ISP.

 

One of them is ASDL Internet provider and the other one is a Cable provider.

 

So I have two routers with different IP's.

 

I have this becuase in case an Internet connection fails I want to be able to use the second one so that we keep internet service working.

 

I do not know how to configure that.

 

I also have the server acting as the DHCP, DNS and HyperV server.

 

Any help would be appreciated.

[ICTCity]

you have "many" possibilities.

 

you can do this manually or automatically.

 

The first thing you can do is a bonding / NIC / team solution. If you have an Intel or HP NIC you can easily bond them and this could also provide load balancing.

if you want to use the routing protocol check this great article:

http://networkerslog.blogspot.com/2011/04/network-redundancy-for-windows-server.html

 

The best solution is a cross router, that means it knows if the other router fails... but they cost soo much. There are others routing protocols you can use to achieve that, but they're not reliable.

[Agustin de Landa]

Thanks for the information but that is not what I need.

 

As I said I have my windows server 2008 R2 connected to 2 ISP, one of them ADSL and the other Cable.

 

I want Server 2008 R2 to be able to realize Internet connection #1 (ASDL) is not working and automatically use Cable ISP. This should be transparent to my users.

[ICTCity]

there's no way to accomplish this task without a cross router.