How to sub-delegate a reverse zone [KB1240]

How to sub-delegate a reverse zone [KB1240]: "NS: 64/30.33.22.11.in-addr.arpa -> ns1.customer.com
NS: 64/30.33.22.11.in-addr.arpa -> ns2.customer.com
CNAME: 64.33.22.11.in-addr.arpa -> 64.64/30.33.22.11.in-addr.arpa
CNAME: 65.33.22.11.in-addr.arpa -> 65.64/30.33.22.11.in-addr.arpa
CNAME: 66.33.22.11.in-addr.arpa -> 66.64/30.33.22.11.in-addr.arpa
CNAME: 67.33.22.11.in-addr.arpa -> 67.64/30.33.22.11.in-addr.arpa

Your customer would setup a zone called "64/30.33.22.11.in-addr.arpa" on his DNS server with the following records:

SOA: 64/30.33.22.11.in-addr.arpa ...
NS: 64/30.33.22.11.in-addr.arpa -> ns1.customer.com
NS: 64/30.33.22.11.in-addr.arpa -> ns2.customer.com
PTR: 64.64/30.33.22.11.in-addr.arpa -> [reverse DNS name for IP 11.22.33.64]
PTR: 65.64/30.33.22.11.in-addr.arpa -> [reverse DNS name for IP 11.22.33.65]
PTR: 66.64/30.33.22.11.in-addr.arpa -> [reverse DNS name for IP 11.22.33.66]
PTR: 67.64/30.33.22.11.in-addr.arpa -> [reverse DNS name for IP 11.22.33.67]"

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