Title:
DNS SERVER, GATEWAYS AND METHODS FOR MANAGING AN IDENTIFIER OF A PORT RANGE IN THE TRANSMISSION OF DATA
Document Type and Number:
WIPO Patent Application WO/2011/117534
Kind Code:
A3
Abstract:
The invention relates to a DNS server (110) and to a method for managing a DNS request, said method comprising a step (E2) consisting in receiving a DNS request for access to a remote application (104B) accessible via a gateway (106B) and a step (E3) consisting in transmitting a DNS response containing the IP address of the gateway (106B). The method also includes a verification step for determining if an identifier of a port range is stored in the DNS server (110) associated with the IP address of the gateway (106B) and, in the affirmative, a step in which the identifier is inserted into the DNS response prior to the transmission thereof. The invention further relates to a method for transmitting data from a first gateway (106A) to a second gateway (106B), a method for transmitting data from a gateway (106B) to a server (102B) of a local network (LAN_B), and the gateways (106A, 106B) for performing said methods.
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Inventors:
GRIMAULT JEAN-LUC (FR)
KASSI LAHLOU MOHAMMED (FR)
KASSI LAHLOU MOHAMMED (FR)
Application Number:
PCT/FR2011/050606
Publication Date:
March 22, 2012
Filing Date:
March 22, 2011
Export Citation:
Assignee:
FRANCE TELECOM (FR)
GRIMAULT JEAN-LUC (FR)
KASSI LAHLOU MOHAMMED (FR)
GRIMAULT JEAN-LUC (FR)
KASSI LAHLOU MOHAMMED (FR)
International Classes:
H04L29/12
Other References:
BOUCADAIR M ET AL: "Anticipate IPv4 Address Exhaustion: A Critical Challenge for Internet Survival", EVOLVING INTERNET, 2009. INTERNET '09. FIRST INTERNATIONAL CONFERENCE ON, IEEE, PISCATAWAY, NJ, USA, 23 August 2009 (2009-08-23), pages 27 - 32, XP031540612, ISBN: 978-1-4244-4718-3
GULBRANDSEN TROLL TECHNOLOGIES P VIXIE INTERNET SOFTWARE CONSORTIUM L ESIBOV MICROSOFT CORP A: "A DNS RR for specifying the location of services (DNS SRV); rfc2782.txt", IETF STANDARD, INTERNET ENGINEERING TASK FORCE, IETF, CH, 1 February 2000 (2000-02-01), XP015008565, ISSN: 0000-0003
JIM REES: "PE-ARP: Port Enhaced ARP for IPv4 Address Sharing", 30 September 2009 (2009-09-30), Lansing, pages 14 PP, XP002616240, Retrieved from the Internet [retrieved on 20110111]
GULBRANDSEN TROLL TECHNOLOGIES P VIXIE INTERNET SOFTWARE CONSORTIUM L ESIBOV MICROSOFT CORP A: "A DNS RR for specifying the location of services (DNS SRV); rfc2782.txt", IETF STANDARD, INTERNET ENGINEERING TASK FORCE, IETF, CH, 1 February 2000 (2000-02-01), XP015008565, ISSN: 0000-0003
JIM REES: "PE-ARP: Port Enhaced ARP for IPv4 Address Sharing", 30 September 2009 (2009-09-30), Lansing, pages 14 PP, XP002616240, Retrieved from the Internet
Attorney, Agent or Firm:
FRANCE TELECOM R&D/PIV/BREVETS (38-40 rue du Général Leclerc, Issy Moulineaux Cedex 9, FR)
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