Source-Specific Multicast (SSM) is recognized as the most feasible multicast communication model for a wide use throughout the Internet because it eliminates many complexities associated with traditional many-to-many multicast communication model. Regarding the SSM communication, however, implementations of the Internet Group Multicast Protocol version 3 (IGMPv3) for IPv4 and the Multicast Listener Discovery version 2 (MLDv2) for IPv6 are indispensable on every end-host. Accurate implementations of these protocols are necessary studies for the smooth deployment. In this document, we illustrate IGMPv3 and MLDv2 host-side implementations applied to the 4.4BSD kernel. While presenting the concept and the design of these implementations, we verify the behavior and evaluate the response times for (*,G) and (S,G) joins requested on top of both implementations.