Denial of service protection through port hopping

摘要

The present invention is directed to protecting network resources from unauthorized data packet streams. In particular, embodiments of the present invention provide for a port hopping arrangement in which a port pair associated with a communication channel is changed intermittently or periodically. In order to prevent the loss of authorized data packets due to network delay and jitter, a period of overlap during which a port and a successive port both accept data packets may be provided. Ports may be selected for use by providing endpoints to a communication with a common algorithm and seed value.