I'm trying to setup Network Load Balancing for the first time on Windows 2008 R2 and have it working, but am just wondering, if I have a block of 5 public IP addresses from the ISP:
123.456.789.012 - 123.456.789.016
I have it so that NLB listens on the IP address of 123.456.789.012 (this is also the address my DNS record points to from my public domain name), do I need to have my IIS servers having public IP addresses?
Right now IIS Server 1 uses 123.456.789.013, and IIS Server 2 uses 123.456.789.014. I'm just worried that as I grow this solution, we're going to need to add up to possibly 10 IIS servers, so we'll require IP addresses for each server.
Each server will be hosting 2 websites so we could require up to 20 public IP's just for this. Our ISP limits us to 14 public IPs. Not sure if there is a better way to do this?