Is the DNS protocol used with IPv6 addresses?
In the Domain Name System (DNS), hostnames are mapped to IPv6 addresses by AAAA (“quad-A”) resource records. For reverse resolution, the IETF reserved the domain ip6.arpa, where the name space is hierarchically divided by the 1-digit hexadecimal representation of nibble units (4 bits) of the IPv6 address.
Why is my DNS server IPv6?
DHCP is enabled on the client, but your IPv4 address is an APIPA address, suggesting that the client was unable to receive an address from the DHCP server. That would explain why the IPv6 addresses are listed for DNS Servers. Client often receive default gateway and DNS information via DHCP scope options.
Is IPv6 DNS faster than IPv4?
The security blog Sucuri ran a series of tests in which they found that in direct connections, IPv4 and IPv6 delivered the same speed. IPv4 occasionally won the test. In theory, IPv6 should be a little faster since cycles don’t have to be wasted on NAT translations.
What kind of DNS records do IPv6 addresses use?
An AAAA (pronounced quad A) record is a DNS record that maps to an IPv6 address. AAAA records are available for all customers. Currently, IP addresses are based on version 4 of the internet protocol, where there are 4 sets of numbers ranging from 0-255.
Do I need to change IPv6 DNS?
If your ISP provides both IPv4 and IPv6 then you have to change DNS in both protocol. But there is no strict rule.
Should I change both IPv4 and IPv6 DNS?
What is IPv6 DNS and why is it important?
As IPv6 adoption grows, DNS is becoming more important as a mechanism to help users, using both IPv4 and IPv6 hosts, reach the most appropriate IP address. If you operate your own DNS server, switching to IPv6 DNS requires configuration on your server, and creating two sets of records to ensure you can continue to support traffic from IPv4 hosts.
Why do some clients not have IPv6 support?
Many clients will not have IPv6 support. In addition, while a client may originally perform a DNS query using IPv6, name servers in the DNS resolution chain might be dual stack and might forward the request over IPv4, or an IPv4 address could be locally cached. DNS SRV records indicate how your DNS server prefers that clients connect.
Why can’t Wireshark resolve IPv6 via DNS?
You are not having a problem resolving IPv6 via DNS. As you have said, you can see the DNS packets in Wireshark and in the results of the DNS resolution in the DNS cache. Your problem is related to correctly routing or filtering the network traffic between the systems after resolution has already completed.
How do I add IPv6 addresses to my hostname?
Add IPv6 addresses as a DNS record for your hostname, so it has both A (IPv4 address mapping) and AAAA (IPv6 address mapping) records. Here is an example of an AAAA record: Ensure you also correctly setup PTR (reverse DNS) records for your IPv6 addresses.
