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From: Andy Burns <usenet@andyburns.uk>
Newsgroups: alt.comp.os.windows-11
Subject: Re: What is this IPv6 address?
Date: Mon, 31 Mar 2025 19:29:51 +0100
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On 31/03/2025 18:47, T wrote:
> 
> This is a list of available IPv6 address.
> 
> "0:0:0:0:0:0:0:1",
> "fe80:0:0:0:"
> 
> It look to me like the fe one is mangled, but I
> do not know.

they're both expanded a bit more than they need to be

::1 is like 127.0.0.1, a loopback addr

fe80::0 is equivalent to 169.254.0.0, it's link local, non routable, for 
when you can't get any other IP addr.