Electrical computers and digital processing systems: multicomput – Computer network managing – Computer network monitoring
Reexamination Certificate
2007-02-20
2007-02-20
Dalencourt, Yves (Department: 2157)
Electrical computers and digital processing systems: multicomput
Computer network managing
Computer network monitoring
C709S223000, C709S225000, C709S226000, C709S227000, C709S228000, C709S230000, C709S235000, C713S153000, C713S154000, C370S254000, C370S255000, C370S389000, C370S474000
Reexamination Certificate
active
10192522
ABSTRACT:
The present invention includes a method for preventing any external intruder by filtering an Internet Protocol packet in customer premise equipment connected between a personal computer (PC) and a digital subscriber line (xDSL) when it is operated in a bridge mode. To this end, the present invention provides the method including the steps of: detecting a destination IP address by analyzing the IP packet to be transmitted to the other party as a PC user access to an Internet through xDSL; registering the destination IP address to a predetermined allowance table; detecting a source IP address of the IP packet upon receiving the IP packet through xDSL; and checking whether the source IP address is duly registered to the allowance table for passing the corresponding IP packet through the PC only if the source IP address has been registered, and for blocking the corresponding IP packet if the source IP address has not been registered.
REFERENCES:
patent: 5204858 (1993-04-01), Kinashi et al.
patent: 6092110 (2000-07-01), Maria et al.
patent: 6108782 (2000-08-01), Fletcher et al.
patent: 6577642 (2003-06-01), Fijolek et al.
patent: 6584074 (2003-06-01), Vasamsetti et al.
patent: 2002/0023152 (2002-02-01), Oguchi
Chinese Office Action No. 02127593.3, issued Jan. 7, 2005, citing U.S. Patent No. 5,204,858 and U.S. Patent No. 6,092,110.
Bushnell , Esq. Robert E.
Dalencourt Yves
Samsung Electronics Co,. Ltd.
LandOfFree
Method for filtering internet protocol packet in customer... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for filtering internet protocol packet in customer..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for filtering internet protocol packet in customer... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3829895