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-The DNS64 code was written by Viagenie, 2009, by Simon Perrault as part
-of the Ecdysis project.  The code is copyright by them, and has the BSD
-license (see the dns64/dns64.c file).
-
-To enable DNS64 functionality in Unbound, two directives in unbound.conf must
-be edited:
-
-1. The "module-config" directive must start with "dns64". For example:
-
-    module-config: "dns64 validator iterator"
-
-If you're not using DNSSEC then you may remove "validator".
-
-2. The "dns64-prefix" directive indicates your DNS64 prefix. For example:
-
-    dns64-prefix: 64:FF9B::/96
-
-The prefix must be a /96 or shorter.
-
-To test that things are working right, perform a query against Unbound for a
-domain name for which no AAAA record exists. You should see a AAAA record in
-the answer section. The corresponding IPv6 address will be inside the DNS64
-prefix. For example:
-
-    $ unbound -c unbound.conf
-    $ dig @localhost jazz-v4.viagenie.ca aaaa
-    [...]
-    ;; ANSWER SECTION:
-    jazz-v4.viagenie.ca.        86400   IN      AAAA    64:ff9b::ce7b:1f02
-