Windows Server as router + VPN

view full story

http://serverfault.com – We have two locations between which we want to have secure connection. The link between those two networks is 4Gbit/s, and the problem is that our firewalls can provide VPN with maximum throughput of 400Mbit/s. Upgrade of the firewalls is out of questions, we bought them few months ago, and to turn off encryption is also out of questions. We are thinking to buy 4 windows server (2008 or 2012) machines which would be placed at locations (2 at each location, one would be main and another failover), and they would be in charge of traffic encryption between those two locations. This would cost a (HowTos)