On 7/25/23 06:03, Stuart Henderson wrote: is a network address (mask it out against the netmask,
the remaining "host bits" are all zeroes), you cannot use this (or the
broadcast address) as a host address

I am sure you were not trying to be "technical"; but for people that
don't already possess the knowledge, I just wanted to say that there
are two exceptions to the rule that you shouldn't assign the network or
broadcast address to a host: /31 (https://www.rfc-editor.org/rfc/rfc3021)
and /32 networks. I also have a /29 network of globally routable IPv4
addresses, and I use all 8 of those precious IPs by carving out 8 /32s
and assigning each one to a host.

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