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COREDNS-DNS64(7) CoreDNS Plugins COREDNS-DNS64(7) NAME dns64 - enables DNS64 IPv6 transition mechanism. DESCRIPTION The dns64 plugin will when asked for a domain's AAAA records, but only finds A records, synthesizes the AAAA records from the A records. The synthesis is only performed if the query came in via IPv6. This translation is for IPv6-only networks that have NAT64 <https://en.wikipedia.org/wiki/NAT64>. SYNTAX dns64 [PREFIX] • PREFIX defines a custom prefix instead of the default 64:ff9b::/96. Or use this slightly longer form with more options: dns64 [PREFIX] { [translate_all] prefix PREFIX } • prefix specifies any local IPv6 prefix to use, instead of the well known prefix (64:ff9b::/96) • translate_all translates all queries, including responses that have AAAA results. EXAMPLES Translate with the default well known prefix. Applies to all queries (if they came in over IPv6). . { dns64 } Use a custom prefix. . { dns64 64:1337::/96 } Or . { dns64 { prefix 64:1337::/96 } } Enable translation even if an existing AAAA record is present. . { dns64 { translate_all } } METRICS If monitoring is enabled (via the prometheus plugin) then the following metrics are exported: • coredns_dns64_requests_translated_total{server} - counter of DNS requests translated The server label is explained in the prometheus plugin documentation. BUGS Not all features required by DNS64 are implemented, only basic AAAA synthesis. • Support "mapping of separate IPv4 ranges to separate IPv6 prefixes" • Resolve PTR records • Make resolver DNSSEC aware. See: RFC 6147 Section 3 <https://tools.ietf.org/html/rfc6147#section-3> SEE ALSO See RFC 6147 <https://tools.ietf.org/html/rfc6147> for more information on the DNS64 mechanism. CoreDNS March 2021 COREDNS-DNS64(7)
NAME | DESCRIPTION | SYNTAX | EXAMPLES | METRICS | BUGS | SEE ALSO
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