Establishment of a secure communication link based on a...

Details Establishment of a secure communication link based on a... Establishment of a secure communication link based on a...

2002-09-30

2009-02-10

Lim, Krisna (Department: 2153)

Electrical computers and digital processing systems: multicomput

Computer network managing

Computer network access regulating

C709S229000

Reexamination Certificate

active

07490151

ABSTRACT:
A plurality of computer nodes communicate using seemingly random Internet Protocol source and destination addresses. Data packets matching criteria defined by a moving window of valid addresses are accepted for further processing, while those that do not meet the criteria are quickly rejected. Improvements to the basic design include (1) a load balancer that distributes packets across different transmission paths according to transmission path quality; (2) a DNS proxy server that transparently creates a virtual private network in response to a domain name inquiry; (3) a large-to-small link bandwidth management feature that prevents denial-of-service attacks at system chokepoints; (4) a traffic limiter that regulates incoming packets by limiting the rate at which a transmitter can be synchronized with a receiver; and (5) a signaling synchronizer that allows a large number of nodes to communicate with a central node by partitioning the communication function between two separate entities.

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