Re: question about net address

From	coreyh@free.fr
Newsgroups	linux.debian.user
Subject	Re: question about net address
Date	2023-03-19 11:30 +0100
Message-ID	<GaYsx-dxM7-3@gated-at.bofh.it> (permalink)
References	<GaCV3-dkb8-5@gated-at.bofh.it> <GaN45-dqtO-1@gated-at.bofh.it> <GaOjv-drce-1@gated-at.bofh.it> <GaY9b-dxET-1@gated-at.bofh.it>
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On 19/03/2023 18:00, David Christensen wrote:
> On 3/18/23 16:31, coreyh@free.fr wrote:
>> On 19/03/2023 06:17, Kushal Kumaran wrote:
>>> On Sat, Mar 18 2023 at 07:28:23 PM, coreyh@free.fr wrote:
>>>> Hello
>>>> 
>>>> I know 192.168.1.0/24 is a valid C range for network address.
>>>> 
>>>> but what does 192.168.1.1/24 mean?
>>>> 
>>>> I ask this just for a setting in the SPF:
>>>> 
>>>> spf.pinoad.se.        300    IN    TXT    "v=spf1 ip4:188.66.63.1/24 
>>>> -all"
>>>> 
>>> 
>>> It means the same thing.  192.168.1.1/24 is the same range as
>>> 192.168.1.0/24, but written by someone not paying too much attention.
>> 
>> 
>> That's correct. Thanks.
> 
> 
> AIUI:
> 
> * 192.168.1.0/24 identifies an IPv4 network with an address of
> 192.168.1.0 and a network prefix of 24 bits.  The address is within
> the reserved private block 192.168.0.0/16.  The prefix corresponds to
> a class C network.
> 
> * 192.168.1.1/24 identifies an IPv4 network interface with an address
> of 192.168.1.1 and a network prefix of 24.  The interface is
> configured to communicate over the 192.168.1.0/24 network.
> 
> 
> 

So for Inleed (a local ISP)'s SPF:

spf.pinoad.se.		300	IN	TXT	"v=spf1 ip4:188.66.63.1/24 -all"


They specify only 188.66.63.1 to send email?

But as far as I know their mailserver is 188.66.63.2:

mail.inleed.xyz.	300	IN	A	188.66.63.2


Then this mail server should have problems in messages delivery.

Thanks
Corey

Thread

question about net address coreyh@free.fr - 2023-03-18 12:30 +0100
  Re: question about net address Markus Schönhaber <debian-user@list-post.mks-mail.de> - 2023-03-18 13:40 +0100
  Re: question about net address Timothy M Butterworth <timothy.m.butterworth@gmail.com> - 2023-03-18 14:30 +0100
  Re: question about net address Kushal Kumaran <kushal@locationd.net> - 2023-03-18 23:20 +0100
    Re: question about net address coreyh@free.fr - 2023-03-19 00:40 +0100
      Re: question about net address David Christensen <dpchrist@holgerdanske.com> - 2023-03-19 11:10 +0100
        Re: question about net address coreyh@free.fr - 2023-03-19 11:30 +0100
          Re: question about net address Joe <joe@jretrading.com> - 2023-03-19 11:40 +0100
          Re: question about net address Jeremy Ardley <jeremy@ardley.org> - 2023-03-19 11:40 +0100
            Re: question about net address coreyh@free.fr - 2023-03-19 11:40 +0100
              Re: question about net address jeremy ardley <jeremy@ardley.org> - 2023-03-19 11:50 +0100
              Re: question about net address <tomas@tuxteam.de> - 2023-03-19 12:10 +0100
              Re: question about net address Greg Wooledge <greg@wooledge.org> - 2023-03-19 13:20 +0100
                Re: question about net address Curt <curty@free.fr> - 2023-03-19 18:20 +0100
                Re: question about net address David Wright <deblis@lionunicorn.co.uk> - 2023-03-19 19:50 +0100
              Re: question about net address Stefan Monnier <monnier@iro.umontreal.ca> - 2023-03-19 16:00 +0100
            Re: question about net address Yassine Chaouche <a.chaouche@algerian-radio.dz> - 2023-03-19 12:10 +0100
              Re: question about net address <tomas@tuxteam.de> - 2023-03-19 12:20 +0100
              Re: question about net address <tomas@tuxteam.de> - 2023-03-19 12:20 +0100
                Re: question about net address Nicolas George <george@nsup.org> - 2023-03-19 12:20 +0100
                Re: question about net address Jeremy Ardley <jeremy@ardley.org> - 2023-03-19 12:40 +0100
                Re: question about net address Nicolas George <george@nsup.org> - 2023-03-19 12:50 +0100
                Re: question about net address Greg Wooledge <greg@wooledge.org> - 2023-03-19 13:30 +0100
                Re: question about net address David Wright <deblis@lionunicorn.co.uk> - 2023-03-19 18:30 +0100
                Re: question about net address David Wright <deblis@lionunicorn.co.uk> - 2023-03-19 19:50 +0100
                Re: question about net address Jeremy Ardley <jeremy@ardley.org> - 2023-03-20 00:40 +0100
                Re: question about net address fh@dnsbed.com - 2023-03-20 01:30 +0100
                Re: question about net address Stefan Monnier <monnier@iro.umontreal.ca> - 2023-03-21 23:30 +0100
                Re: question about net address Jeremy Ardley <jeremy@ardley.org> - 2023-03-22 00:00 +0100
                Re: question about net address David Wright <deblis@lionunicorn.co.uk> - 2023-03-22 00:50 +0100
                Re: question about net address David Wright <deblis@lionunicorn.co.uk> - 2023-03-22 15:50 +0100
                Re: question about net address Jeremy Ardley <jeremy@ardley.org> - 2023-03-19 12:40 +0100
                Re: question about net address Yassine Chaouche <a.chaouche@algerian-radio.dz> - 2023-03-19 13:10 +0100
                Re: question about net address Curt <curty@free.fr> - 2023-03-19 18:10 +0100
              Re: question about net address fh@dnsbed.com - 2023-03-19 12:40 +0100
                Re: question about net address <tomas@tuxteam.de> - 2023-03-19 13:00 +0100
              Re: artifiial intelligence (was: Re: question about net address) Yassine Chaouche <a.chaouche@algerian-radio.dz> - 2023-03-20 10:30 +0100
          Re: question about net address David Christensen <dpchrist@holgerdanske.com> - 2023-03-19 23:20 +0100
  Re: question about net address Yassine Chaouche <a.chaouche@algerian-radio.dz> - 2023-03-19 10:00 +0100
    Re: question about net address Yassine Chaouche <a.chaouche@algerian-radio.dz> - 2023-03-19 10:10 +0100
    Re: question about net address debian-user@howorth.org.uk - 2023-03-19 17:50 +0100

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