A method for performing trick-play functions in a multicast stream, involving generating a session announcement protocol (SAP) message, wherein the SAP announcement includes a first internet protocol (IP) address of a multicast source, forwarding the SAP message to a multicast router, wherein the multicast router includes an attached storage to cache the multicast stream, substituting the first IP address with a second IP address associated with the multicast router, requesting a trick-play function to obtain a unicast stream, and receiving the unicast stream from the attached storage based on the trick-play function.