Subject: IPv4 DNS host in IPv6-only network

IPv4 DNS host in IPv6-only network

From: Andrey Khranovsky <andrey.khranovsky_at_gmail.com>
Date: Thu, 12 Apr 2018 13:21:11 +0200

Hi,

Given list of DNS hosts as "IPv4-address-one, IPv4-address-two,
IPv6-address-one, IPv6-address-two", passed to "ares_set_servers".

Given IPv6-only network.

Would c-ares figure out which DNS host should be used for name resolution,
i.e. avoid IPv4 addresses that can be not accessible in IPv6-only network?

Would c-ares try all given hosts if one is not accessible?

Thanks in advance,
Andrey Khranovsky
Received on 2018-04-12