H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 12/46 (2006.01) H04L 12/56 (2006.01) H04L 29/06 (2006.01)
Patent
CA 2680599
A method and system for automatically configuring an IPsec-based Virtual Private Network. Each node in the Virtual Private Network is configured as an IPsec peer node and maintains a Security Policy Database (SPD) that includes information about the data flow between each pair of networks known to the node. An advertisement packet is distributed whenever a node detects a new network connected to the node, a change in its network configuration or in the list of trusted networks known to the node. If the advertisement concerns a new network, then the receiving node adds the new network to its SPD if it is not already in the SPD. The receiving node also updates its SPD with the network path between the new network and the sending node if the network path is shorter than what is currently in the database. If the advertisement concerns a new host in a trusted network connected to the sending node, then the new host name is added to the list of known host names maintained by the receiving node.
Grant Timothy
Shoykher Mikhail
Ibm Canada Limited - Ibm Canada Limitee
Wang Peter
LandOfFree
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