Alternative method to the return routability test to send binding updates to correspondent nodes behind firewalls
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United States of America Patent
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N/A
Issued Date -
Aug 11, 2005
app pub date -
May 27, 2004
filing date -
Feb 9, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The invention proposes a method for providing traversal of a packet filtering function (D) for information transferred between a first network node (A) and a second network node (B) wherein the second network node (B) is associated with a home network control element (C) and the first network node (A) is protected by the packet filtering function (D), the method comprising the steps of sending (S1) a message including temporary identification information from the second node to the home network control element, sending (S3) a message including at least a part of the temporary identification information from the home network control element to the first node, and preparing (S4-S7) a direct connection between the first node and the second node via the packet filtering function based on the identification information. The invention also proposes corresponding network nodes, a corresponding home network control element and a corresponding network system.
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