Traversal of symmetric network address translator for multiple simultaneous connections
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United States of America Patent
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Sep 6, 2011
Grant Date -
Feb 10, 2011
app pub date -
Oct 22, 2010
filing date -
Mar 5, 2008
priority date (Note) -
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Abstract
Handling of multiple connections during NAT traversal for a node behind a symmetric NAT is disclosed. The likelihood of connection failure during symmetric NAT traversal may be reduced by serializing critical time windows after port prediction. Once a connection request has been sent for a first connection, port prediction for a subsequent connection may be delayed until a connectivity check has begun for the first connection. This process may be repeated to handle NAT traversal for multiple simultaneous connections to different nodes.
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