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Re: stretch and DNS name resolution service for other devices on a LAN

From Pascal Hambourg <pascal@plouf.fr.eu.org>
Newsgroups linux.debian.user
Subject Re: stretch and DNS name resolution service for other devices on a LAN
Date 2018-01-23 21:00 +0100
Message-ID <vbcTD-6ty-1@gated-at.bofh.it> (permalink)
References (6 earlier) <vb4Mp-1xi-1@gated-at.bofh.it> <vb77z-2Vr-5@gated-at.bofh.it> <vb83D-3wR-1@gated-at.bofh.it> <vb9j4-4sn-15@gated-at.bofh.it> <vbaf7-50L-19@gated-at.bofh.it>
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Le 23/01/2018 à 18:08, David Wright a écrit :
> 
> [My Laptop] --- wireless connection IPv4 --- [Router] --- Internet Modem
>       |                                         / |
>       | CAT5 cable IPv6                        /  |
>       |                                       /   | wireless/wired
> [My Desktop] --- wireless connection IPv4 __/    | connections
>                                                   | IPv4
>                                                   |
>                                                  [TVs]
> 
>> Both devices will allocate themselves an address in the 'link local' range,
>> and these addresses can then be used for communicating between the devices.

They can, but they should not be used with application-layer protocols. 
Really. IPv6 link local addresses are not meant for this.

On disadvantage is that these addresses are not globally unique (the 
link local prefix exists on all interfaces) and must be appended with an 
interface name. The second disadvantage is that if the interface is 
replaced for whatever reason, the interface name may change and the MAC 
address will change. The link local addresses is based on the MAC 
addresses, so it will change too. IMO, simple static configuration with 
a ULA prefix, or with a global prefix if you own one, would be much 
reliable.

So Andy is right : you could use IPv4 for this. But rather with static 
configuration than unpredictable APIPA assignments.

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Thread

stretch and DNS name resolution service for other devices on a LAN "D. R. Evans" <doc.evans@gmail.com> - 2018-01-18 22:40 +0100
  Re: stretch and DNS name resolution service for other devices on a  LAN Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-01-18 22:50 +0100
    Re: stretch and DNS name resolution service for other devices on a  LAN "D. R. Evans" <doc.evans@gmail.com> - 2018-01-19 06:20 +0100
      Re: stretch and DNS name resolution service for other devices on a  LAN Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-01-19 21:10 +0100
  Re: stretch and DNS name resolution service for other devices on a  LAN Greg Wooledge <wooledg@eeg.ccf.org> - 2018-01-18 22:50 +0100
    Re: stretch and DNS name resolution service for other devices on a  LAN "D. R. Evans" <doc.evans@gmail.com> - 2018-01-19 06:20 +0100
    Re: stretch and DNS name resolution service for other devices on a  LAN Andy Hawkins <andy@gently.org.uk> - 2018-01-19 12:50 +0100
      Re: stretch and DNS name resolution service for other devices on a  LAN john doe <johndoe65534@mail.com> - 2018-01-19 13:10 +0100
        Re: stretch and DNS name resolution service for other devices on a  LAN Andy Hawkins <andy@gently.org.uk> - 2018-01-19 13:30 +0100
          Re: stretch and DNS name resolution service for other devices on a  LAN Michael Stone <mstone@debian.org> - 2018-01-19 15:10 +0100
            Re: stretch and DNS name resolution service for other devices on a  LAN Andy Hawkins <andy@gently.org.uk> - 2018-01-19 15:30 +0100
      Re: stretch and DNS name resolution service for other devices on a  LAN Greg Wooledge <wooledg@eeg.ccf.org> - 2018-01-19 14:50 +0100
        Re: stretch and DNS name resolution service for other devices on a  LAN Michael Stone <mstone@debian.org> - 2018-01-19 15:10 +0100
        Re: stretch and DNS name resolution service for other devices on a  LAN Andy Hawkins <andy@gently.org.uk> - 2018-01-19 15:20 +0100
          Re: stretch and DNS name resolution service for other devices on a  LAN Rob van der Putten <rob@sput.nl> - 2018-01-19 16:20 +0100
            Re: stretch and DNS name resolution service for other devices on a  LAN Michael Stone <mstone@debian.org> - 2018-01-19 17:40 +0100
            Re: stretch and DNS name resolution service for other devices on a  LAN Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-01-19 20:40 +0100
        Re: stretch and DNS name resolution service for other devices on a  LAN David Wright <deblis@lionunicorn.co.uk> - 2018-01-19 16:20 +0100
          Re: stretch and DNS name resolution service for other devices on a  LAN Andy Hawkins <andy@gently.org.uk> - 2018-01-22 18:30 +0100
            Re: stretch and DNS name resolution service for other devices on a  LAN David Wright <deblis@lionunicorn.co.uk> - 2018-01-22 23:30 +0100
              Re: stretch and DNS name resolution service for other devices on a  LAN Andy Hawkins <andy@gently.org.uk> - 2018-01-23 10:30 +0100
                Re: stretch and DNS name resolution service for other devices on a  LAN Curt <curty@free.fr> - 2018-01-23 12:20 +0100
                Re: stretch and DNS name resolution service for other devices on a  LAN Joe <joe@jretrading.com> - 2018-01-23 14:50 +0100
                Re: stretch and DNS name resolution service for other devices on a  LAN David Wright <deblis@lionunicorn.co.uk> - 2018-01-23 15:50 +0100
                Re: stretch and DNS name resolution service for other devices on a  LAN Andy Hawkins <andy@gently.org.uk> - 2018-01-23 17:10 +0100
                Re: stretch and DNS name resolution service for other devices on a  LAN David Wright <deblis@lionunicorn.co.uk> - 2018-01-23 18:10 +0100
                Re: stretch and DNS name resolution service for other devices on a  LAN Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-01-23 21:00 +0100
                Re: stretch and DNS name resolution service for other devices on a  LAN David Wright <deblis@lionunicorn.co.uk> - 2018-02-22 23:00 +0100
                Re: stretch and DNS name resolution service for other devices on a  LAN Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-02-24 10:00 +0100
                Re: stretch and DNS name resolution service for other devices on a   LAN Curt <curty@free.fr> - 2018-02-24 11:10 +0100
                Re: stretch and DNS name resolution service for other devices on a  LAN David Wright <deblis@lionunicorn.co.uk> - 2018-02-25 18:40 +0100
                Re: stretch and DNS name resolution service for other devices on a  LAN Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-02-27 21:00 +0100
                Re: stretch and DNS name resolution service for other devices on a  LAN David Wright <deblis@lionunicorn.co.uk> - 2018-02-28 18:20 +0100
                Re: stretch and DNS name resolution service for other devices on a  LAN Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-02-28 19:50 +0100
                Re: stretch and DNS name resolution service for other devices on a  LAN David Wright <deblis@lionunicorn.co.uk> - 2018-02-28 21:20 +0100
                Re: stretch and DNS name resolution service for other devices on a  LAN Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-03-03 00:00 +0100
                Re: stretch and DNS name resolution service for other devices on a  LAN David Wright <deblis@lionunicorn.co.uk> - 2018-03-04 20:30 +0100

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