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Re: Debian jessie > buster IPv6 link scope change of behaviour

From Marc SCHAEFER <schaefer@alphanet.ch>
Newsgroups linux.debian.user
Subject Re: Debian jessie > buster IPv6 link scope change of behaviour
Date 2021-01-21 08:10 +0100
Message-ID <BzCgp-1AA-1@gated-at.bofh.it> (permalink)
References <BzmEF-5V-13@gated-at.bofh.it> <BzBkl-12A-7@gated-at.bofh.it>
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On Wed, Jan 20, 2021 at 11:59:46PM -0600, David Wright wrote:
> As far as the address is concerned, fe80::1 is perfectly formed,
> but ambiguous. Is that what your jessie error message used to say?

The error was one of the usual kernel errors (-EINVALID probably), see
below.

Actually, stretch does the same (Linux ns2 4.9.0-14-amd64 #1 SMP Debian
4.9.246-2 (2020-12-17) x86_64 GNU/Linux):

root@ns2 ~ # ping6 fe80::1
connect: Invalid argument

root@ns2 ~ # ping6 fe80::1%2
PING fe80::1%2(fe80::1%eth0) 56 data bytes
64 bytes from fe80::1%eth0: icmp_seq=1 ttl=255 time=0.423 ms
64 bytes from fe80::1%eth0: icmp_seq=2 ttl=255 time=0.332 ms
64 bytes from fe80::1%eth0: icmp_seq=3 ttl=255 time=0.305 ms
64 bytes from fe80::1%eth0: icmp_seq=4 ttl=255 time=0.355 ms

fe80::1 is specifically a link-local scope, a bit like if you try to
access a class variable without telling in what class it is.

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Thread

Debian jessie > buster IPv6 link scope change of behaviour Marc SCHAEFER <schaefer@alphanet.ch> - 2021-01-20 15:30 +0100
  Re: Debian jessie > buster IPv6 link scope change of behaviour David Wright <deblis@lionunicorn.co.uk> - 2021-01-21 07:10 +0100
    Re: Debian jessie > buster IPv6 link scope change of behaviour Marc SCHAEFER <schaefer@alphanet.ch> - 2021-01-21 08:10 +0100
      Re: Debian jessie > buster IPv6 link scope change of behaviour Marc SCHAEFER <schaefer@alphanet.ch> - 2021-01-21 08:20 +0100
        Re: Debian jessie > buster IPv6 link scope change of behaviour David Wright <deblis@lionunicorn.co.uk> - 2021-01-22 01:30 +0100
          Re: Debian jessie > buster IPv6 link scope change of behaviour Marc SCHAEFER <schaefer@alphanet.ch> - 2021-01-23 10:10 +0100

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