Cisco Technology, Inc.

Gary Beau Williamson

Toerless Eckert

John S Meylor

Steve Simlo

A method is provided for proxy services between a public network and a private network. Such a method includes receiving a first packet having a destination address and a first source address; generating a second packet having the destination address and a second source address; and transmitting the second packet.

System and method for providing packet proxy services across virtual private networks

The subject application is directed to a system and method for rapid switching between anycast multicast sources. Multiple streams of data are received by a server. The server associates a separate source address to each of the received streams and sources the multiple streams of data with the associated addresses to a recipient. The server determines whether each of the multiple streams of data is up or down. The server periodically sends status information with the associated address for each of the multiple streams of data to the recipient indicating whether each of the multiple streams of data is up or down.

Server to network signaling method for rapid switching between anycast multicast sources

A method is provided for securely transmitting multicast data across an unsecured public network. Such a method includes receiving a join message identifying at least one private multicast group; mapping the private multicast group to a public multicast group; generating a membership report specifying the public multicast group; and sending the membership report to the unsecured network. Additionally, the method may further comprise creating a secure tunnel through the unsecured network to a network element coupled; generating an encrypted control message specifying the private multicast group; and sending the encrypted control message through the secure tunnel to the network element.

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Richardson, TX, United States of America

Gary Beau Williamson