Re: Debian Trixie install SLAAC

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On Tue, May 12, 2026 at 7:37=E2=80=AFAM Thomas Marcks von W=C3=BCrtemberg w=
rote:

> =EF=BB=BF
>
> Hi,
>
> I'm currently testing ipv6 only networks and services to find things that
> needs fixing, and when trying to install Debian Trixie using a IPv6 only
> network with SLAAC configuration the installation fails to detect a
> network. If i exit to a shell i can ping both the default gateway as well
> as the two DNS servers that are running in the local /64 network. If I
> manually set the DNS servers in resolve.conf then I can ping and resolve
> things on the internet but the installer still does not detect internet a=
nd
> can only install the base OS.
>

Do you have an ipv6 router configured to send RDNSS info?
  https://oneuptime.com/blog/post/2026-03-20-slaac-dns-rdnss/view

You can install radvdump to see the router advertisement info you're
getting.

Regards,
Lee

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<div dir=3D"ltr"><div dir=3D"ltr"></div><div class=3D"gmail_quote gmail_quo=
te_container"><div dir=3D"ltr" class=3D"gmail_attr">On Tue, May 12, 2026 at=
 7:37=E2=80=AFAM Thomas Marcks von W=C3=BCrtemberg wrote:<br></div><blockqu=
ote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px=
 solid rgb(204,204,204);padding-left:1ex"><div dir=3D"auto"><div dir=3D"ltr=
">=EF=BB=BF

 =20

   =20
 =20
 =20
    <p>Hi,</p>
    <p>I&#39;m currently testing ipv6 only networks and services to find
      things that needs fixing, and when trying to install Debian Trixie
      using a IPv6 only network with SLAAC configuration the
      installation fails to detect a network. If i exit to a shell i can
      ping both the default gateway as well as the two DNS servers that
      are running in the local /64 network. If I manually set the DNS serve=
rs in resolve.conf then I can ping and resolve things on the internet but t=
he installer still does not detect internet and can only install the base O=
S.</p></div></div></blockquote><div><br></div><div>Do you have an ipv6 rout=
er configured to send=C2=A0RDNSS info?</div><div>=C2=A0 <a href=3D"https://=
oneuptime.com/blog/post/2026-03-20-slaac-dns-rdnss/view">https://oneuptime.=
com/blog/post/2026-03-20-slaac-dns-rdnss/view</a></div><div><br></div><div>=
You can install radvdump to see the router advertisement info you&#39;re ge=
tting.</div><div><br></div><div>Regards,</div><div>Lee</div><br></div></div=
>

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