I have a handful of physical servers each hosting several virtual servers via Hyper-V. Each virtual server has its own public IP. Until now, I've been paying my datacenter a monthly managed firewall fee to handle firewall/routing duties. Unfortunately, I've just been informed that they (the datacenter) plans a ridiculous price increase for managed firewall service, and now it makes more sense for me to install my own firewall. Each virtual has unique and commonport routing requirements, so NAT is out of the question. I need a recommendation for a cost effective firewall capable of routing traffic for up to different static IP addresses. I'm open to off the shelf and home-built solutions, but I need an intuitive interface as I don't have time for anything with a igh learning curve...thanks!