Server 2012 R2 VPN solutions

So let me explain what type of physical server configuration i have going on. So i have a Linksys Router EA6900 that is the Gateway to our Network. The Router is connected to our switch. Our server has two nics that are both connected to our switch for redundancy and load balance (Nic Teaming) The server is a domain controller, File server and DHCP/DNS Server. I have read that to use VPN you have to have a cat 5 from the Time Warner Modem itself straigt into a Nic on the server with a static IP address and routing/firewall instructions to make it work. My question is, are there any VPN solutions that i can use with my current physical network configuration? Everything is working just right and i dont want to switch things around. Thank you.
Isaias PerezLAN / PC Analyst 4Asked:
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Kash2nd Line EngineerCommented:
NIC teaming would allow you to share one IP.
You could probably use your server for RAS.
Install and set up necessary NAT'ing on the linksys and should be good to go.
JohnBusiness Consultant (Owner)Commented:
Consider replacing your Linksys EA6900 with an economical VPN router (Juniper Netscreen SSG5 or Cisco RV325). This is what I do and it is easier over the long run.
Cliff GaliherCommented:
You can read a lot of things. It is the internet after all. For technical advice, stick to reliable sources, a blog by some guy written five years ago probably is not going to be helpful or accurate. And you provided no source except "I read."

PPTP works through NAT. But requires a router that can pass GRE traffic. Not all can. NAT breaks L2TP/IPsec, but that has extensions that make it workable. SSTP works through almost any router with NAT, but requires newer client OSes that support NAT. And that's just what's built into windows. There are 3rd party VPN vendors with various SSL, HTML5, and other proprietary VPN options with client installers that are router friendly. You have many options.

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Qlemo"Batchelor", Developer and EE Topic AdvisorCommented:
I can only agree to above said.

Having one NIC connected to the Internet directly makes it easier to set up RRAS (what Windows Server uses for dial-in and VPN), but is no requirement. However, having a static public IP or DNS name entry is required, as traditional VPNs are point-to-point connections, and at least one partner needs to be reachable from Internet (IP or DNS name).

If you have dynamic public IP on both ends, you can set up one to use a Dynamic DNS Service which assigns a static name to your dynamic IP, and so makes it reachable.

Is this thought as a dial-in type of service for multiple users, as a site-2-site connection, ...?
Whatsoever, don't expect to get anything which "just runs" with your current setup. It is always a question of either investing man power (and time), or hardware, or both ;-).
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