The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 01, 2017
Filed:
Mar. 14, 2013
Raytheon Bbn Technologies Corp., Cambridge, MA (US);
Daniel Joseph Ellard, Belmont, MA (US);
Alden Warren Jackson, Brookline, MA (US);
Christine Elaine Jones, Spokane Valley, WA (US);
Josh Forrest Karlin, Stow, MA (US);
Victoria Ursula Manfredi, Cambridge, MA (US);
David Patrick Mankins, Cambridge, MA (US);
William Timothy Strayer, West Newton, MA (US);
Raytheon BBN Technologies Corp., Cambridge, MA (US);
Abstract
Systems and methods for protecting a network including providing a mapping between internal addresses as seen by devices of the protected network and external addresses; providing devices with a mapped address for a destination in response to a lookup request; rewriting, at a gateway, destination addresses of packets exiting the protected network based on the mapping; and rewriting, at the destination-network gateway, source addresses of packets entering the protected network based on the mapping. Embodiments include a gateway coupled to a protected network, an external network, and a name server. The name server, in response to a hostname lookup request, configured to provide a network device with the internal address; and the gateway with a mapping including the internal address, the addresses of the device, and the hostname. The gateway configured to rewrite destination addresses of outbound packets, and source addresses of inbound packets, based on the mapping.