On 2015-10-02 11:13, Bjoern Voigt wrote:
openSUSE box' resolv.conv points to the routers DNS resolver (dnsmasq). Dnsmasq on the router forwards Internet queries to the providers DNS server.
I get A and AAAA records on the openSUSE box and on the router:
openSUSE box: $ host www.heise.de www.heise.de has address 193.99.144.85 www.heise.de has IPv6 address 2a02:2e0:3fe:1001:7777:772e:2:85
Well, as you get an IPv6 address, openSUSE tries it. Or sometimes tries it. I'm not aware of a method to tell the DNS server not to provide IPv6 answers, which is what would be needed when the ISP does not provide IPv6. However, you can disable IPv6 completely on your machine. Or you could try to add: precedence ::ffff:0:0/96 100 to "/etc/gai.conf" -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar)