services/dns/Configuration.md
... ...
@@ -302,11 +302,11 @@ d.f.ip6.arpa. 86400 IN DS 1 2 3 456
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[172.20.0.0/16 range](https://git.dn42.dev/dn42/registry/src/branch/master/data/inetnum/172.20.0.0_16)
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-[172.20.0.0/16 range](https://git.dn42.dev/dn42/registry/src/branch/master/data/inetnum/172.21.0.0_16)
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+[172.21.0.0/16 range](https://git.dn42.dev/dn42/registry/src/branch/master/data/inetnum/172.21.0.0_16)
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-[172.20.0.0/16 range](https://git.dn42.dev/dn42/registry/src/branch/master/data/inetnum/172.22.0.0_16)
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+[172.22.0.0/16 range](https://git.dn42.dev/dn42/registry/src/branch/master/data/inetnum/172.22.0.0_16)
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-[172.20.0.0/16 range](https://git.dn42.dev/dn42/registry/src/branch/master/data/inetnum/172.23.0.0_16)
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+[172.23.0.0/16 range](https://git.dn42.dev/dn42/registry/src/branch/master/data/inetnum/172.23.0.0_16)
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[fd00::/8 range](https://git.dn42.dev/dn42/registry/src/branch/master/data/inet6num/fd00::_8)
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