Method for managing IP tunnels
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United States of America Patent
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Apr 30, 2013
Grant Date -
Dec 3, 2009
app pub date -
Jun 3, 2008
filing date -
Jun 3, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A method for managing Internet Protocol (IP) tunnels is provided. The method is executed by a local host. There is at least one IP tunnel planned between the local host and a remote host. The method comprises the following steps. If the local addresses of the tunnels include dynamic IP addresses, acquire the dynamic IP addresses. All tunnels with known remote addresses are built. If there are known remote addresses and the local addresses include dynamic IP addresses, send a notification to the remote host, wherein the notification includes all local dynamic IP addresses. If any local address changes, all tunnels with changed local addresses and known remote addresses are rebuilt. A message is received from the remote host and classified. If the message is a notification, the tunnels are updated according to the remote addresses included in the message, and an acknowledgement is sent back to the remote host.
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