We have now had several companies require that we use Public IP addresses inside VPN tunnels when setting them up. We are not a large company and may not be able to afford purchasing a bunch of Public IP addresses for this purpose. What happened to agreeing on an intermediate Private IP range using NAT or even using one side or the other's Private IP range and NAT? Are the times changing and we are falling behind? Should we be changing our standards or are these isolated companies that aren't playing nice? What are the standards these days?