Method and system for denying cable modem access to a broadband network
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United States of America Patent
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Dec 11, 2012
Grant Date -
Jan 10, 2008
app pub date -
Jul 9, 2007
filing date -
Jul 10, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A device, such as a cable modem or embedded media terminal adaptor that attempts to obtain unauthorized network services, is designated by head end equipment, such as a CMTS, as being a ‘rogue’ device. Upon an initial range request from the rogue device, the CMTS responds with a continuing range command. Upon receiving each periodic range request transmitted from the rogue device during a periodic station maintenance opportunity, the CMTS responds with another continuing range command. Thus, the rogue device does not ever establish connection with the CMTS because an ACK message is not received back from the CMTS. Moreover, use of CMTS resources for processing request from rogue devices is minimized because the rogue device does not reinitialize its MAC after a predetermined period of time, which it would do if a periodic ranging opportunity was not scheduled.
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