DNS anti-spoofing using UDP

Details DNS anti-spoofing using UDP DNS anti-spoofing using UDP

2005-03-30

2009-11-17

Pwu, Jeffrey (Department: 2446)

Electrical computers and digital processing systems: multicomput

Computer-to-computer data addressing

C709S229000

Reexamination Certificate

active

07620733

ABSTRACT:
A method for authenticating communication traffic includes receiving a first Domain Name System (DNS) request, sent using a connectionless protocol over a network from a source address, to provide network information regarding a domain name. Responsively to the first DNS request, a client at the source address is solicited to send a second DNS request using the connectionless protocol. An authenticity of the first DNS request is assessed based on the second DNS request.

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