DNS server, gateways and methods for managing an identifier of a port range in the transmission of data
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United States of America Patent
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Mar 21, 2017
Grant Date -
Jan 10, 2013
app pub date -
Mar 22, 2011
filing date -
Mar 26, 2010
priority date (Note) -
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Abstract
A DNS server (110) and to a method of managing a DNS request, the method comprising receiving (E2) a DNS request for accessing a remote application (104B) accessible via a gateway (106B) and sending (E3) a DNS response including the IP address of the gateway (106B), the method further comprising a verification for determining whether a port range identifier is stored in the DNS server (110) in association with the IP address of the gateway (106B), and if so, the identifier is inserted in the DNS response before sending the DNS response. The invention also provides a method of transmitting data from a first gateway (106A) to a second gateway (106B), a method of transmitting data from a gateway (106B) to a server (102B) of a local network (LAN_B), and the gateways (106A, 106B) for performing such methods.
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