It has been about 10 years since I had to do anything with RRaS, and even then it was only when working on my MCSE, so I appreciate your patience with what may end up being a dumb question.
I have recently implemented a Dell Compellent storage system, which runs on an internal network of 10.0.x.x (/16). Due to security restrictions, the storage system itself does not have external connections. The front end is a Server 2012 cluster, which serves out the CAP to the users.
In addition, there is a second box which is used to run Enterprise Manager. This box is on the 10.0.x.x /16 network along with the Compellent system on NIC Interface #1, and also on our external network using a static IP on Interface #2.
My issue is in attempting to allow the Compellent system to communicate with the outside world (Phone Home). Obviously it cannot do so on its own, so my thought was to configure Routing and Remote Access to permit this. My attempt looked something like this on the admin server (We'll call it Admin):
My external NIC interface is "External", with a static public IP.
My internal NIC interface is "Internal" with a private IP of 10.0.3.100 (/16)
The Dell system (also on the internal network) has an IP of 10.0.1.101 (also /16) - I can ping the Dell system from the Admin server along that network.
I set up Route and Remote Access on "Admin" with Windows Server 2008 Standard R2. In RRaS, I have enabled the computer as an IPv4 Router, Local Area Network (LAN) routing only. I have left the security options at the defaults (Windows Authentication, Windows Accounting), and ensured that Enable IPv4 Forwarding is enabled on the IPv4 tab.
Now, to the meat of it - I want to create a static route that will route traffic from the 10.0.x.x /16 subnet to the external interface's public IP address. (for convenience, let's call it 55.55.55.55).
I created a static route. I set the Interface to Internal, as that is the one I am seeking to route from. For the destination, I set the external network of 55.55.55.0, and the Network Mask for 255.255.254.0 (as that's the mask for the public network), and the default gateway of 55.55.55.1 (which is my normal external gateway). I left the metric at the standard 256.
My first question is - is this correct? I've been doing the typical google searches, and it appears to be correct, but now the Admin box can't even ping the Dell system over the internal network (10.0.1.101 is not responding). I'm sure this is just a case of my not having messed with this in years, but a fresh perspective might help.