RFC 2317:Classless IN-ADDR.ARPA delegation
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subnet


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... method should thus remove one of the objections to subnet on non-octet boundaries but perhaps more significantly, make it possible to assign IP address space in smaller ...


... methods if two organizations somehow shared the same physical subnet (and corresponding IP address space) with no "neat" alignment of the addresses ...
... organisation, and run IN-ADDR.ARPA this way, and then have the organisation subnet the /25 into longer prefixes, and attempt to employ the same technique to give each subnet ...
... subnet the /25 into longer prefixes, and attempt to employ the same technique to give each subnet control of its own number space. This would result in a CNAME ...



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