I have a Windows Server 2008 R2 machine running in my basement. I have an application installed on it that calls a web service out on the open internet on a periodic timer. Everything works great until my ISP goes done.
For redundancy I got a second connection into my basement from a different ISP. I want to now configure my service to use the first ISP until it goes down and then automatically switch to the second ISP.
I have installed a second NIC card into the server. However, I need some help in configuring the redundant set up I am after.
For example it isn't clear to me if these separate NICs should be configured on the same subnet?
The other complication is that this server is infact the DC for my domain. Not sure if that complicates things or not.
I do RDP into the server remotely currently, so there is another potential complication (would need to enable that through both ISP router/nic. However, please note that other than the inbound RDP traffic, I am only interested in having the "outbound" web service traffic redundant at this time - that is I am only using the machine as a client in this scenario).
I have read up on Multi-homing and just feel this is overkill for what I am trying to accomplish. All I want is for the internet to still be reachable from the machine via automatic switch over if my primary ISP goes down.
Thanks in advance for any and all help in configuring this correctly.
Rod