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Enabling foreign network multicasting for a roaming mobile node, in a foreign network, using a persistent address

  • US 20030018715A1
  • Filed: 06/14/2002
  • Published: 01/23/2003
  • Est. Priority Date: 06/14/2001
  • Status: Active Grant
First Claim
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1. A method for use with a communications system including a first network system serving as a home for the mobile node and including a first mobility agent, and a second, visited, network system including an access node including a second mobility agent, and a multicast facility the method comprising:

  • a) submitting, with the mobile node, a signaling message to the multicast facility of the access node for joining a multicast data communications group; and

    b) sending, from the mobile node, unencapsulated multicast data to the multicast data communications group, via the access node, using a source address that is not local to the second, visited, network system.

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