IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
UP-0331789
(2006-01-14)
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등록번호 |
US-7724703
(2010-06-14)
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발명자
/ 주소 |
- Matta, Sudheer Poorna Chandra
- Tiwari, Manish
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
24 인용 특허 :
163 |
초록
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A technique for wireless network monitoring involves scanning channels using clients instead of access points. An example of a method according to the technique may include, for example, receiving from a wireless access point a command to perform a channel scanning function, listening on a channel a
A technique for wireless network monitoring involves scanning channels using clients instead of access points. An example of a method according to the technique may include, for example, receiving from a wireless access point a command to perform a channel scanning function, listening on a channel associated with the channel scanning function, and sending RF data found on the channel to the wireless access point. Another example of a method according to the technique may include, for example, scanning a first channel, switching from the first channel to a second channel, sending data on the second channel to an access point, switching from the second channel to the first channel, and resuming scanning on the first channel. A system according to the technique may include one or more scanning clients, proxy clients, multi-channel clients, or other clients that are capable of scanning channels in lieu of an access point.
대표청구항
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What is claimed is: 1. A method comprising: receiving from a wireless access point a command to find out about a device at a non-access point (non-AP) wireless station; listening at the non-AP wireless station on a channel associated with the device; filtering at the non-AP wireless station RF data
What is claimed is: 1. A method comprising: receiving from a wireless access point a command to find out about a device at a non-access point (non-AP) wireless station; listening at the non-AP wireless station on a channel associated with the device; filtering at the non-AP wireless station RF data found on the channel data using a MAC address associated with the device; sending from the non-AP wireless station the filtered RF data found on the channel to the wireless access point. 2. The method of claim 1, further comprising sending the command from a switch to the wireless access point. 3. The method of claim 1, further comprising sending the command from the wireless access point to a wireless client associated with the wireless access point. 4. The method of claim 1, further comprising listening on the channel for a period of time that is specified in the command. 5. The method of claim 1, further comprising filtering the RF data using one or more of the categories consisting of channel number, frame type, and frame subtype. 6. The method of claim 1, further comprising generating a report from the RF data. 7. The method of claim 1, further comprising generating a report from the RF data, wherein the sending the RF data found on the channel includes sending the report. 8. The method of claim 1, further comprising performing countermeasures in response to the RF data. 9. The method of claim 1, wherein the RF data is associated with 802.11 standards-compliant interfaces. 10. A method comprising: scanning at a non-access point (non-AP) wireless station a first channel of a plurality of wireless channels; filtering RF data found on the first channel using a MAC address associated with a device; switching from the first channel to a second channel of the plurality of wireless channels, wherein an access point is on the second channel; sending to the access point on the second channel the MAC address-filtered RF data found on the second channel to the second channel; switching from the second channel to the first channel; resuming scanning on the first channel at the non-AP wireless station. 11. The method of claim 10, further comprising scanning each of the plurality of wireless channels. 12. The method of claim 10, further comprising receiving a command from the access point, wherein the RF data sent to the access point is in accordance with the command. 13. The method of claim 10, wherein switching from the first channel to the second channel includes a first client switching from the first channel to the second channel; switching from the second channel to the first channel includes a second client switching from the second channel to the first channel. 14. The method of claim 10, further comprising generating a report using the RF data, wherein the sending the RF data on the second channel includes sending the report. 15. The method of claim 10, further comprising: generating a report using the RF data; performing countermeasures in response to the report. 16. The method of claim 10, further comprising using a proxy client to forward a command from the access point to a client, and to provide the RF data to the access point from the client. 17. A method comprising: sending a command from an access point on a first channel to a non-access point (non-AP) wireless proxy client; switching the non-AP wireless proxy client to a second channel; forwarding the command from the non-AP wireless proxy client to a non-AP wireless client on the second channel; generating a report that is responsive to the command; switching the non-AP wireless proxy client to the first channel; forwarding the report from the non-AP wireless proxy client to the access point. 18. The method of claim 17, wherein generating the report includes generating the report at the non-AP wireless client, further comprising transmitting the report from the non-AP wireless client to the non-AP wireless proxy client. 19. The method of claim 17, further comprising, after forwarding the command from the non-AP wireless proxy client to the non-AP wireless client, swapping the roles of the client and the non-AP wireless proxy client such that the non-AP wireless proxy client becomes the non-AP wireless client and the non-AP wireless client becomes the non-AP wireless proxy client, wherein, after the swapping of roles, the generating a report includes generating the report at the non-AP wireless proxy client. 20. The method of claim 17, wherein the report includes a frame report frame.
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