Re: Anybody Using IPv6?

On Tue, 20 May 2025 18:34:51 +0200, Carlos E. R. wrote:

Consider that, for instance, this laptop has an IPv6 address:
 
         inet6 fc00::16  prefixlen 64  scopeid 0x0<global>
         inet6 fe80::4ecc:6aff:fe61:50a1  prefixlen 64  scopeid 0x20<link>
...
 
So applications thought that IPv6 was available.

You don’t have to worry about those. The one beginning with “fc” is
“network-local” (analogous to private IPv4 ranges like 10.0.0.0/8,
196.168.0.0/16 etc), and the one beginning with “fe8” is “link-local”
(only for use on the directly-attached layer 2). Neither is routable
outside your LAN, so they can’t, won’t, be used to access any Internet

reference: <https://en.wikipedia.org/wiki/IPv6_address>

(Yes, there are quite a few more different kinds of addresses than
with IPv4 ...)