• dbtng@eviltoast.org
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            15 hours ago

            Two reasons.

            You were responding to someone who offered a /24 as a subnet.
            There are 32 bits in an IPv4 address. /24 is 255.255.255.0.
            So they were wrong too in reference to IPv6, but at least they were making sense.
            You responded with /128, which is the full range of the IPv6 address.
            That would be like the prior poster saying /32 aka 255.255.255.255.
            There’s no usable range there.

            And, see my post above for the rest of the breakdown, but you were looking for /64.

            • libewa@feddit.org
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              13 hours ago

              But the mask is a firewall to prevent viruses from leaving or reaching you, so a firewall on ::1/128

              • dbtng@eviltoast.org
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                8 hours ago

                Ah. Well that’s nonsense, but it is a take on the graphic with some internal cohesion.