Network address translation gateway for networks using...

Information security – Access control or authentication – Network

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C726S011000, C709S219000, C709S229000

Reexamination Certificate

active

07581247

ABSTRACT:
A network address translation gateway provides normal network translation for IP datagrams traveling from a local area network using local IP addresses to an external network, but suspends source service address (port) translation when the port is reserved for a specific protocol, such as the ISAKMP “handshaking” protocol that is part of the IPSec protocol model. ISAKMP exchanges require both source and target computers to use the same service address (port). By providing a network interface that does not translate the source service address (port), this gateway enables the initiation and maintenance of secure, encrypted transmissions using IPSec protocol between a local area network using local IP addresses and servers on the internet.

REFERENCES:
patent: 5781550 (1998-07-01), Templin et al.
patent: 5825891 (1998-10-01), Levesque et al.
patent: 5898784 (1999-04-01), Kirby et al.
patent: 5940591 (1999-08-01), Boyle et al.
patent: 5983350 (1999-11-01), Minear et al.
patent: 6006259 (1999-12-01), Adelman et al.
patent: 6055236 (2000-04-01), Nessett et al.
patent: 6347376 (2002-02-01), Attwood et al.
patent: 6449251 (2002-09-01), Awadallah et al.
patent: 6615357 (2003-09-01), Boden et al.
patent: 6795917 (2004-09-01), Ylonen
patent: 7028335 (2006-04-01), Borella et al.
patent: 7058973 (2006-06-01), Sultan
Kent et al., “Security Architecture for the Internet Protocol”, Nov. 1998, pp. 1-66.
International Search Report; International Application No. PCT/US01/06257; International Filing Date: Feb. 27, 2001; Mailed on Jun. 14, 2001.
International Preliminary Examination Report; International Application No. PCT/US01/06257; International Filing Date; Feb. 27, 2001; Mailed on Jan. 15, 2002.
Stevens, Richard W.; “TCP/IP Illustrated, vol. 1—The Protocols” 1994; Addison Wesley; Section 3.3, 1st paragraph.
Supplementary European Search Report; Application No. EP 01 91 6265; Date of Search Mar. 4, 2004.
EPO Communication; Application No. 01 916 265.0-221; Nov. 25, 2004.
M Borella: ‘RSIP Support for End to end Ipsec’ Internet Article, [Online] Feb. 2000, pp. 1-19. http://www.watersprings.org/pub/id/draft-ietf-nat-rsip-ipsec-02.txt.
G. Montenegro: ‘Negotiated Address Reuse (NAR)’ Internet Article, http://www.watersprings/org/pub/id/draft-montenegro-aatn-nar-01.txt, Jan. 18, 1999.
D. Senie: “NAT Friendly Application Design Guidelines” Internet Article, Sep. 1999, http://www3.ietf.org/proceedings/99nov/I-D/draft-ietf-nat-app-guide-02.txt.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Network address translation gateway for networks using... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Network address translation gateway for networks using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Network address translation gateway for networks using... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4088911

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.