Protecting against distributed denial of service attacks
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United States of America Patent
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Jan 30, 2007
Grant Date -
Jun 12, 2003
app pub date -
Aug 29, 2002
filing date -
Aug 30, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A method for authenticating packet communication traffic includes receiving a data packet sent over a network from a source address to a destination address and reading from the packet a value of a field that is indicative of a number of hops traversed by the packet since having been sent from the source address. The authenticity of the source address is assessed responsive to the value.
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