Are NAT'ed networks part of the Internet?

Tony Tauber ttauber at
Thu Sep 27 15:41:07 UTC 2012

> "Are networks behind NAT/ALG or that use RFC 1918 or the v6 equivalent
> address space,
> part of the 'Internet' or are they in networks where access to
> addresses/service ports
> must be explicitly granted?"

RFC4084 (Terminology for Describing Internet
IMHO, does a decent job of trying to enumerate/unpack these kinds of
I'm sure it's not uncontroversial, but may provide some common vocabulary.


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