Filtering and classifying multicast network traffic

Described herein are systems and methods to filter and classify multicast network traffic. In one example, a first computing node may receive a multicast communication from a second computing node and register a for a flow associated with the multicast communication, wherein the context includes at least the multicast port associated with the multicast communication. The first computing node further identifies an outbound communication destined for the second computing node and determines that addressing attributes in the outbound communication match the context for the flow. Once it is determined that the attributes match the context for the flow, the first computing node associates the outbound communication with the flow.