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Today's Topics:
1. Re: IPv4 Private Address Space (Jos? Queiroz)
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Message: 1
Date: Tue, 11 May 2021 20:46:57 -0300
From: Jos? Queiroz <zekk...@gmail.com>
To: Users of ISC DHCP <dhcp-users@lists.isc.org>
Subject: Re: IPv4 Private Address Space
Message-ID:
<CADeaZRyQSV97uksvyJyG7VCGnqdf=b1+d86zelehhqu+vcm...@mail.gmail.com>
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Em ter., 11 de mai. de 2021 ?s 19:04, Louis Garcia <louisg...@gmail.com>
escreveu:
>
> Currently I have three networks 172.16.2.0/24 172.16.3.0/24
> 172.16.4.0/24. I read that not all of 172.16.0.0 is private, only
> 172.16.0.0/12. I am trying to not have public routable IPs on my
> network. Please let me know if this setup is fine.
>
172.16.0.0 *is all private*.
As so is 172.17. 172.18 ando so on, until 172.31.0.0. In fact, the reserved
address space starts on 172.16.0.1 and goes all the way through
172.31.255.254. This is what the "/12" prefix means. Note that bigger
networks use smaller prefixes, and smaller networks use bigger prefixes.
Your networks 172.16.2.0/24, 172.16.3.0/24 and 172.16.4.0/24 are a tiny
portion of the original network. In fact, you could easily use the
"255.255.248.0" (/21) netmask to describe them.
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