We currently have several hundred remote locations connected to our home office using VPN. Both sides are setup with static IPs. We are now wanting to use Dynamic IPs at these remote locations. I know I can set this up with Pre-Shared keys right now but I don't feel as safe since I don't have the Static IP. What would be the most secure way to setup hundreds of remote sites with Dynamic IPs talking to the home office? What kind of equipment? What methods would you use?
Thanks for your time.