US5848233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for dynamic packet filter assignment
Assignee: Oracle America Inc
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Filing: 1996-12-09
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Granted: 1998-12-08
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Expires: 2016-12-09
Abstract
Abstract The present invention includes a method and apparatus for filtering IP packets based on events within a computer network. More specifically, the present invention includes a services management system, or SMS. The SMS manages network connections between a series of client systems and a router. An access network control server (ANCS) manages the configuration of the router. The SMS monitors activities or events that occur within the network. In response to these events, the SMS dynamically downloads filtering profiles to the ANCS. The ANCS then uses the downloaded filtering profiles to reconfigure the router. The router then uses the filtering rules to selectively discard or forward IP packets received from the client systems.
Inventors
- 👤 Sanjay R. Radia
- 👤 Swee Boon Lim
- 👤 Panagiotis Tsirigotis
- 👤 Thomas K. Wong
- 👤 Robert J. Goedman
- 👤 Michael W. Patrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:47
CPC Classifications
H; H04; H04L; H04L63/00; H04L63/02; H04L63/0227; H04L63/10; H04L63/102
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
83 words
A method for filtering IP packets in a computer network that includes one or more client systems, the method comprising the steps, performed by one or more computer systems, of: detecting an event associated with one of the client systems; selecting one or more filtering rules based on the type of event detected; and establishing a packet filter in the computer network, the packet filter using the selected rules to selectively discard packets originating at the client system associated with the detected event.
Claim 2
Independent Claim
83 words
A method for filtering IP packets in a computer network that includes one or more client systems, the method comprising the steps, performed by one or more computer systems, of: detecting an event associated with one of the client systems; selecting one or more filtering rules based on the type of event detected; and establishing a packet filter in the computer network, the packet filter using the selected rules to selectively discard packets originating at the client system associated with the detected event.
Claim 3
Dependent Claim
22 words
A method as recited in claim 1 wherein the detected event is the assignment of an IP address to the client system.
Claim 4
Dependent Claim
26 words
A method as recited in claim 1 wherein the detected event is the login of a user using the client system associated with the detected event.
Claim 5
Dependent Claim
44 words
A method as recited in claim 1 wherein the computer network includes a router and wherein the step of establishing a packet filter includes the step of reconfiguring the router to selectively discard packets originating at the client system associated with the detected event.
Claim 6
Dependent Claim
56 words
A method as recited in claim 1 wherein the client system associated with the detected event is connected to the network using a cable modem and wherein the step of establishing a packet filter includes the step of reconfiguring the cable modem to selectively discard packets originating at the client system associated with the detected event.
Claim 7
Dependent Claim
30 words
A method as recited in claim 1 wherein the step of selecting one or more filtering rules further comprises the step of generating the filtering rules using a standardized template.
Claim 8
Dependent Claim
29 words
A method as recited in claim 1 wherein the step of selecting one or more filtering rules further comprises the step of selecting the filtering rules from a database.
Claim 9
Dependent Claim
127 words
A computer program product comprising: a computer usable medium having computer readable code embodied therein for filtering IP packets in a computer network that includes one or more client systems, the computer program product comprising: first computer readable program code devices configured to cause a computer system to detect an event associated with one of the client systems; second computer readable program code devices configured to cause a computer system to provide one or more filtering rules based on the type of event detected; and third computer readable program code devices configured to cause a computer system to establish a packet filter in the computer network, the packet filter using the selected rules to selectively discard packets originating at the client system associated with the detected event.
Claim 10
Dependent Claim
127 words
A computer program product comprising: a computer usable medium having computer readable code embodied therein for filtering IP packets in a computer network that includes one or more client systems, the computer program product comprising: first computer readable program code devices configured to cause a computer system to detect an event associated with one of the client systems; second computer readable program code devices configured to cause a computer system to provide one or more filtering rules based on the type of event detected; and third computer readable program code devices configured to cause a computer system to establish a packet filter in the computer network, the packet filter using the selected rules to selectively discard packets originating at the client system associated with the detected event.
Claim 11
Dependent Claim
20 words
A computer program product as recited in claim 8 wherein the detected event is the assignment of an IP address.
Claim 12
Dependent Claim
28 words
A computer program product as recited in claim 8 wherein the detected event is the login of a user using the client system associated with the detected event.
Claim 13
Dependent Claim
55 words
A computer program product as recited in claim 8 wherein the computer network includes a router and wherein the third computer readable program code devices includes computer readable program code devices configured to cause a computer system to reconfigure the router to selectively discard packets originating at the client system associated with the detected event.
Claim 14
Dependent Claim
67 words
A computer program product as recited in claim 8 wherein the client system associated with the detected event is connected to the network using a cable modem and wherein the third computer readable program code devices includes computer readable program code devices configured to cause a computer system to reconfigure the cable modem to selectively discard packets originating at the client system associated with the detected event.
Claim 15
Dependent Claim
38 words
A computer program product as recited in claim 8 wherein the second computer readable program code devices includes computer readable program code devices configured to cause a computer system to generate the filtering rules using a standardized template.
Claim 16
Dependent Claim
37 words
A computer program product as recited in claim 8 wherein the second computer readable program code devices includes computer readable program code devices configured to cause a computer system to select the filtering rules from a database.
Claim 17
Independent Claim
103 words
An apparatus for filtering IP packets in a computer network that includes one or more client systems, the apparatus comprising: a first portion configured to cause a computer system to detect an event associated with one of the client systems; a second portion configured to cause a computer system to provide one or more filtering rules based on the type of event detected; and a third portion configured to cause a computer system to establish a packet filter in the computer network, the packet filter using the selected rules to selectively discard packets originating at the client system associated with the detected event.
Claim 18
Independent Claim
103 words
An apparatus for filtering IP packets in a computer network that includes one or more client systems, the apparatus comprising: a first portion configured to cause a computer system to detect an event associated with one of the client systems; a second portion configured to cause a computer system to provide one or more filtering rules based on the type of event detected; and a third portion configured to cause a computer system to establish a packet filter in the computer network, the packet filter using the selected rules to selectively discard packets originating at the client system associated with the detected event.
Claim 19
Dependent Claim
18 words
An apparatus as recited in claim 15 wherein the detected event is the assignment of an IP address.
Claim 20
Dependent Claim
26 words
An apparatus as recited in claim 15 wherein the detected event is the login of a user using the client system associated with the detected event.
Claim 21
Dependent Claim
47 words
An apparatus as recited in claim 15 wherein the computer network includes a router and wherein the third portion includes a fourth portion configured to cause a computer system to reconfigure the router to selectively discard packets originating at the client system associated with the detected event.
Claim 22
Dependent Claim
59 words
An apparatus as recited in claim 15 wherein the client system associated with the detected event is connected to the network using a cable modem and wherein the third portion includes a fourth portion configured to cause a computer system to reconfigure the cable modem to selectively discard packets originating at the client system associated with the detected event.
Claim 23
Dependent Claim
30 words
An apparatus as recited in claim 15 wherein the second portion includes a fourth portion configured to cause a computer system to generate the filtering rules using a standardized template.
Claim 24
Dependent Claim
29 words
An apparatus as recited in claim 15 wherein the second portion includes a fourth portion configured to cause a computer system to select the filtering rules from a database.
Claim 25
Dependent Claim
15 words
An apparatus as recited in claim 15 wherein each filtering rule includes a protocol type.
Claim 26
Dependent Claim
15 words
An apparatus as recited in claim 15 wherein each filtering rule includes a destination address.
Claim 27
Dependent Claim
15 words
An apparatus as recited in claim 15 wherein each filtering rule includes a destination mask.
Claim 28
Dependent Claim
18 words
An apparatus as recited in claim 15 wherein each filtering rule includes a range of destination port numbers.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-12-07 | 2002-06-08 | 2002-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-12-07 | 2006-06-08 | 2006-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-12-07 | 2010-06-08 | 2010-12-08 | $7700.00 | Window Closed / Lapsed |