| 摘要 |
A DNS server (110) and to a method of managing a DNS request, the method comprising a step (E2) of receiving a DNS request for accessing a remote application (104B) accessible via a gateway (106B) and a step (E3) of sending a DNS response including the IP address of the gateway (106B), the method further comprising a verification step 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, a step of inserting the identifier 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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