Most SD-WAN (software-defined wide-area networks) solutions on the market are designed for large- to medium-size “carpeted” branch offices with local IT staff. For the highly distributed enterprise, a new approach is required to securely enable the wide variety of applications, back-office systems, IoT devices, and kiosks at remote locations that can range from hundreds to tens of thousands of sites. Addressing the legacy environment, enabling new services, and having this all work well together are paramount.