Which network protocol supports Internet protocol and routing over traditional business networks?

The option that accurately supports Internet Protocol (IP) and facilitates routing over traditional business networks is BACnet/IP. BACnet, originally designed for building automation, has been adapted to work over IP networks by incorporating the standard networking protocols. This adaptation allows BACnet to utilize the benefits of IP networking, including scalability, interoperability, and improved communication across devices from different manufacturers in building systems.

By leveraging the functionality of IP, BACnet/IP extends the capabilities of the protocol to support a broader range of applications beyond just traditional building automation, making it suitable for modern networks. This is particularly important in environments where devices need to interact across different types of networks and for complex configurations.

In contrast, other options listed have specialized functions that do not primarily focus on supporting IP and routing in business network contexts, which further emphasizes why BACnet/IP is the correct choice for this scenario.