Nope, not in the age of software defined networks. It's crazy to me this is still a problem. I worked at an ISP and VPS provider years ago on a tiny engineering

Nope, not in the age of software defined networks. It's crazy to me this is still a problem. I worked at an ISP and VPS provider years ago on a tiny engineering team. We employed anti-spoofing at multiple layers; from the hypervisor out to the edge. It's usually just an extra line in a much larger, more complicated network config. In fact, if I were ranking the networking challenges from most to least mental cycles it would be near the bottom.