Choice of network space when numbering interfaces with IPv6
Jeroen Massar
jeroen at unfix.org
Fri Oct 15 19:32:56 UTC 2010
On 2010-10-15 21:26, Zaid Ali wrote:
> SO I have been turning up v6 with multiple providers now and notice that
> some choose /64 for numbering interfaces but one I came across use a /126. A
> /126 is awfully large (for interface numbering) and I am curious if there is
> some rationale behind using a /126 instead of a /64.
You mean to say that a /126 is 'small' actually as it is only
2^(128-126) = 2^2 = 4 IP addresses while a /64 is......
For this discussion, please go through the archives.
In short: Personal preference of operators involved.
Greets,
Jeroen
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