发明公开
- 专利标题： DNS QUERY PROCESSING
- 专利标题（中）： DNS查询处理
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申请号： EP16187483.9申请日： 2016-09-06
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公开(公告)号： EP3291512A1公开(公告)日： 2018-03-07
- 发明人: Karsten, Cornelis
- 申请人： Koninklijke KPN N.V.
- 申请人地址： Maanplein 55 2516 CK The Hague NL
- 专利权人： Koninklijke KPN N.V.
- 当前专利权人： Koninklijke KPN N.V.
- 当前专利权人地址： Maanplein 55 2516 CK The Hague NL
- 代理机构： Wuyts, Koenraad Maria
- 主分类号： H04L29/12
- IPC分类号： H04L29/12 ; G06F9/50 ; H04L29/08 ; H04L29/06
摘要：
A method may be arranged for a Domain Name System server to provide a DNS record to a DNS client. The method may comprise:
- receiving a query from the DNS client, the DNS client having an IP address,
- processing the IP address, by using a mapping function (20), to produce a selection number (SN),
- selecting, by using the selection number (SN), at least one DNS record from a table (23) of DNS records, and
- transmitting the at least one selected DNS record to the DNS client.
The mapping function (20) may comprise a conversion function (21) and/or a reduction function (22), and may be arranged for the selection number (SN) to have a substantially smaller range than the IP address. The conversion function (21) may be arranged such that its output values are more evenly spread over their range than its input values.
- receiving a query from the DNS client, the DNS client having an IP address,
- processing the IP address, by using a mapping function (20), to produce a selection number (SN),
- selecting, by using the selection number (SN), at least one DNS record from a table (23) of DNS records, and
- transmitting the at least one selected DNS record to the DNS client.
The mapping function (20) may comprise a conversion function (21) and/or a reduction function (22), and may be arranged for the selection number (SN) to have a substantially smaller range than the IP address. The conversion function (21) may be arranged such that its output values are more evenly spread over their range than its input values.
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