SYSTEM AND METHOD FOR DETECTING AND INTERCEPTION OF IP SHARER
First Claim
1. A system for monitoring an IP sharer for providing Internet services to a plurality of PCs by using a certified IP address, comprising:
- a sharer database for storing information on an estimated IP sharer user, the information including an IP address allocated to the IP sharer of the estimated IP sharer user;
a packet detector for detecting all IP packets transmitted from a subscriber PC to a network;
an ID analyzer for extracting an ID value from an ID header of the IP packet transmitted from the packet detector, detecting an ID value flow generated for the same IP address, and when a flow of a plurality of ID values is generated for the same IP address, estimating the corresponding IP address to be an IP address of the IP sharer user, and storing estimated IP sharer user information in the sharer database;
a notice transmitter for generating a notice packet for detecting an IP address established in the PC of the estimated IP sharer user, and transmitting the generated notice packet to the PC of the estimated IP sharer user;
a private IP address detector for detecting an IP address established in the PC when the transmitted notice packet is output to the PC; and
a subscriber interceptor for checking whether the estimated IP sharer user uses the IP sharer based on the detected IP address.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed is an IP sharer detecting and intercepting system and method. According to the IP sharer detecting and intercepting method, all the IP packets transmitted through the network are detected, an ID value of the IP header is extracted from the detected IP packets, and an IP sharer user is estimated based on the number of states of ID values for the same IP. A notice packet is transmitted to the estimated IP sharer user to detect a private IP of the IP sharer user, it is determined whether the IP sharer user uses the IP sharer based on the detected private IP, and the checked IP sharer user'"'"'s Internet connection is intercepted. In this instance, a notice packet for introducing an entrance to a normal cable is generated to the IP sharer user before the checked IP sharer user'"'"'s Internet connection is intercepted.
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Citations
14 Claims
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1. A system for monitoring an IP sharer for providing Internet services to a plurality of PCs by using a certified IP address, comprising:
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a sharer database for storing information on an estimated IP sharer user, the information including an IP address allocated to the IP sharer of the estimated IP sharer user;
a packet detector for detecting all IP packets transmitted from a subscriber PC to a network;
an ID analyzer for extracting an ID value from an ID header of the IP packet transmitted from the packet detector, detecting an ID value flow generated for the same IP address, and when a flow of a plurality of ID values is generated for the same IP address, estimating the corresponding IP address to be an IP address of the IP sharer user, and storing estimated IP sharer user information in the sharer database;
a notice transmitter for generating a notice packet for detecting an IP address established in the PC of the estimated IP sharer user, and transmitting the generated notice packet to the PC of the estimated IP sharer user;
a private IP address detector for detecting an IP address established in the PC when the transmitted notice packet is output to the PC; and
a subscriber interceptor for checking whether the estimated IP sharer user uses the IP sharer based on the detected IP address. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for monitoring an IP sharer for providing Internet services to a plurality of PCs by using a certified IP address, comprising:
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a) detecting IP packets transmitted from a subscriber PC to a network;
b) extracting an ID value of an IP header from the detected IP packet, detecting an ID value flow generated for the same IP address, and when a flow of a plurality of ID values is generated for the same IP address, estimating the corresponding IP address as an IP address of the IP sharer user, and storing user information including an IP address allocated to the IP sharer of the estimated IP sharer user;
c) transmitting a notice packet for detecting the IP address established to the PC of the estimated IP sharer user, and detecting a private IP established to the PC when the transmitted notice packet is output to the PC; and
d) checking whether the estimated IP sharer user uses the IP sharer based on the detected private IP address. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification