Network Address Translators (NAT) Type Detection Techniques
AssigneeMicrosoft Corporation
InventorsQingwei Lin, Jiang Li, Jian-guang Lou, Yusuo Hu, Fan Li
Life of this patent
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AssigneeMicrosoft Corporation
InventorsQingwei Lin, Jiang Li, Jian-guang Lou, Yusuo Hu, Fan Li
Estimating the term…
Techniques described herein enable peers to determine each peer's NAT type much more efficiently and quickly than when compared with existing techniques. To do so, a peer simultaneously sends multiple test messages to a server. The peer then waits to either receive a response for each of the multiple test messages or may store an indication that no response has been received after a predetermined timeout period. The peer then analyzes the received responses and/or the stored timeout indications to determine the peer's NAT type or to determine that the peer is operating free from concealment by a NAT/firewall device. By simultaneously sending the multiple test messages, the peer may determine the NAT type within a maximum time defined by the predetermined timeout period or a roundtrip time period that is required for communication between the peer and the server. As such, the tools allow for efficient NAT-type detection.
One or more computer-readable media storing computer-executable instructions that, when executed on one or more processors, perform acts comprising:
One or more computer-readable media storing computer-executable instructions that, when executed on one or more processors of a peer computing device in a peer-to-peer architecture, perform acts comprising:
One or more computer-readable media storing computer-executable instructions that, when executed on one or more processors of a peer computing device in a peer-to-peer architecture, perform acts comprising:
Dependencies are inferred from the claim text.