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Technique for obtaining a multicast address that matches an IP version supported by a terminal

  • US 9,516,385 B2
  • Filed: 06/06/2014
  • Issued: 12/06/2016
  • Est. Priority Date: 12/09/2011
  • Status: Active Grant
First Claim
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1. A method for obtaining a multicast address, the method comprising:

  • sending a first request message to an electronic program guide (EPG) device to obtain program guide information, wherein the first request message carries a terminal identifier of a current user terminal, wherein the program guide information comprises a multicast address matching the current user terminal, and the terminal identifier is used to represent an IP version supported by the current user terminal, and wherein the multicast address that matches the current user terminal comprises an IP version supported by the multicast address that is consistent with the IP version supported by the current user terminal;

    receiving the program guide information returned by the EPG device, wherein the program guide information further comprises at least one of;

    a correspondence between a multicast channel and an Internet protocol version 4 (IPv4) multicast address, and a correspondence between the multicast channel and an Internet protocol version 6 (IPv6) multicast address;

    obtaining, according to the program guide information, a multicast address matching the current user terminal; and

    sending a multicast request message according to the multicast address matching the current user terminal, wherein the multicast request message comprises a multicast address selected by a user, wherein the multicast address selected by the user comprises a multicast group address, and wherein the multicast request message comprises at least one of;

    an Internet group management protocol (IGMP) request message and a multicast listener discover (MLD) request message.

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