| 摘要 |
The present invention relates to a method for updating a domain name server (DNS) address by obtaining the DNS address when an IP address is allocated by using a mobile IP address in a mobile terminal using the portable internet based on a wireless mobile network. In the method at least one DNS address connected to the wireless mobile network is sampled (S400), a roundtrip delay to the respective sampled DNSs is calculated (S450), a DNS address having a minimum roundtrip delay is selected (S460), and a DNS address of the mobile terminal is updated to be the selected DNS address (S500).
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