[dns-operations] question on query to DNS server's IPv6 interface

Bob Harold rharolde at umich.edu
Tue Mar 31 12:25:42 UTC 2020


On Tue, Mar 31, 2020 at 8:16 AM Tessa Plum <tessa at plum.ovh> wrote:

> Hello
>
> Sorry I am newbie to DNS.
>
> When making a DNS query (giving the type is A) to an authorized
> nameserver to its IPv6 address, will the value in answer are also IPv6
> addresses? If the host doesn't have an IPv6 address, how will DNS server
> return?
>
> Thank you.
>
> Tessa.
>
>
The transport (IPv4 or IPv6) that you use to talk to the DNS server should
have no effect on the queries or answers.  If you ask for "A" records, you
will get "A" records, which have IPv4 addresses inside the data.  But the
data inside the packet has nothing to do with the transport that the packet
uses.

-- 
Bob Harold
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