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IPv6 Address Planning by Tom Coffeen

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Appendix B. IPv6 Prefix Maps

These prefix maps may help you more quickly visualize two of the different subnetting methods presented in Chapter 4. Figure B-1 illustrates the basic format of the prefix maps that follow: Incrementing the leftmost bits (Figure B-2) or the rightmost bits (Figure B-3) of a prefix.

IPv6 Address prefix bitmap
Figure B-1. IPv6 Address prefix bitmap
/40 to /48, Incrementing the leftmost bits (sparse allocation)
Figure B-2. /40 to /48, Incrementing the leftmost bits (sparse allocation)
/40 to /48, Incrementing the rightmost bits (N+1 allocation)
Figure B-3. /40 to /48, Incrementing the rightmost bits (N+1 allocation)

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