Re: Choice of network space when numbering interfaces with IPv6

[Jeroen Massar <jeroen () unfix org>]

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