Invention Grant
US08719926B2 Denial of service detection and prevention using dialog level filtering
失效
使用对话级别过滤拒绝服务检测和预防
- Patent Title: Denial of service detection and prevention using dialog level filtering
- Patent Title (中): 使用对话级别过滤拒绝服务检测和预防
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Application No.: US13025635Application Date: 2011-02-11
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Publication No.: US08719926B2Publication Date: 2014-05-06
- Inventor: Gaston S. Ormazabal , Henning G. Schulzrinne
- Applicant: Gaston S. Ormazabal , Henning G. Schulzrinne
- Applicant Address: US NJ Basking Ridge
- Assignee: Verizon Patent and Licensing Inc.
- Current Assignee: Verizon Patent and Licensing Inc.
- Current Assignee Address: US NJ Basking Ridge
- Main IPC: G06F11/00
- IPC: G06F11/00

Abstract:
A method may include receiving a session initiation protocol (SIP) request message and determining whether a dialog exists corresponding to the request message. The method may also include determining whether the dialog is in a first phase or a second phase when a dialog exists corresponding to the session control protocol message and querying a table indicating valid protocol requests for the determined phase to determine whether the received request message is valid. The method may include rejecting the request message when determined that the request message is not valid.
Public/Granted literature
- US20120210007A1 DENIAL OF SERVICE DETECTION AND PREVENTION USING DIALOG LEVEL FILTERING Public/Granted day:2012-08-16
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