Nokia Corporation

Jan Zenner

Martin Bergenwall

The invention relates to a method for providing a DNS server address list from a serverto a clientcomprising the steps of: the clientrequests an IP address from the server; and the serverresponds by assigning the IP address together with said DNS address list to the client. In the prior art the order of the DNS server addresses in the list is static, that means that upon any IP request the same list, having the same order of addresses is provided to the client. When the client wants to output a DNS request he starts by asking the first server in the list irrespective as to whether said server may currently be overloaded or has gone down. In these situations time is lost since no response is provided by such a disturbed DNS server to a DNS request and the client has to ask another server in the list. In order to overcome these disadvantages the order of the DNS server addresses in the list is dynamically updated in that the client always knows which of the available DNS servers is currently best appropriated.

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Helsinki, Finland

Jan Zenner