question about IPv6-DNS-nameserver link-local (with Interface-name)

Thomas Schäfer thomas at
Tue Jul 1 17:20:10 CEST 2014


In my test environment some soho/mobile routers propagate 
IPv6-link-local-adresses to the client(DNS).

In general there is no problem.

Opensuse/NetworkManager writes to /etc/resolv.conf

nameserver fe80::d27a:b5ff:fe7b:e152%wlan0

(Win7, win8, looks similar with its interface-ID)

Ubuntu configures dnsmasq to use this address.

So far so good.
But not all applications accept this DNS-Resolver.

"host" and "dig" make problems.

I described the Situation here in more details.

But I am not sure, where is the bug?
Is it ok, to assign link-local-addresses in /etc/resolv.conf?
Are "host", "dig" and maybe other apps buggy?
(confused by IP-addresses with interface extension)
If you try to reproduce my problem - switch off ipv4.




There’s no place like ::1

Thomas Schäfer (Systemverwaltung)
Centrum für Informations- und Sprachverarbeitung
Oettingenstraße 67 Raum C109
80538 München ☎ +49/89/2180-9706  ℻ +49/89/2180-9701

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