By default, the 6to4 tunneling protocol is enabled in Windows Vista, Windows Server 2008 or later versions when an interface is assigned a public IPv4 address (that is, an IPv4 address that is not in the ranges 10.0.0.0/8, 172.16.0.0/12, or 192.168.0.0/16). 6to4 automatically assigns an IPv6 address to the 6to4 tunneling interface for each such
OpenDNS now supports IPv6 addresses — meaning that, by using the OpenDNS Sandbox, you’ll be able to resolve your DNS using IPv6 DNS servers. Why IPv6? IPv6 supports a far larger number of addresses than IPv4, which is why the change is taking place now — since IPv4 was implemented in 1981, the Internet has grown dramatically, and there If the query protocol family is specified as IPv6, return IPv4-mapped IPv6 addresses on finding no IPv6 addresses. The ip::basic_resolver class template provides the ability to resolve a query to a list of endpoints. The Resolve-DnsName cmdlet performs a DNS query for the specified name. This cmdlet is functionally similar to the nslookup tool which allows users to query for names. Note: The Resolve-DnsName cmdlet will return a maximum of 25 A and AAAA records from NS servers. The documentation for --resolve shows
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IPv6 DNS Lookup. These tools provide DNS lookups using the IPv6 protocol. This is not the same as performing a DNS lookup for AAAA records. AAAA records are simply a type of DNS record. Any type of DNS record can be returned by an IPv4 only (or IPv6 only) DNS server. The tools on this page only use the IPv6 protocol. By default, the 6to4 tunneling protocol is enabled in Windows Vista, Windows Server 2008 or later versions when an interface is assigned a public IPv4 address (that is, an IPv4 address that is not in the ranges 10.0.0.0/8, 172.16.0.0/12, or 192.168.0.0/16). 6to4 automatically assigns an IPv6 address to the 6to4 tunneling interface for each such
IPv6 Lookup Tool. The IPv6 Info tool provides a complete set of IPv6 address information. The IPv6 Info tool provides WHOIS information, Autonomous System Number (ASN) information, expanded and compressed IP address information, and reverse lookup information for an IPv6 address.
The â€œgluelessâ€ answer directed these resolvers to resolve a name that has a IPv6-only step. Of these 345,394 resolvers, some 17,804 resolvers were using IPv6 to query the parent zone server, while the remainder had to switch protocol to resolve the name server record, assuming of course that the resolver is dual-stack capable. IPv6-test.com is a free service that checks your IPv6 and IPv4 connectivity and speed. Diagnose connection problems, discover which address(es) you are currently using to browse the Internet, and what is your browser's protocol of choice when both v6 and v4 are available. How To Fix "IPv6 Connectivity: No Internet access" Problem Internet Protocol version 6 (IPv6) is the most recent Internet Protocol (IP) version, which is intended to supplement and eventually replace Internet Protocol version 4 (IPv4). Despite this, many Internet services still use the older protocol. BUT, it does not work for IPv6, only the first IPv6 DNS Server appear at my resolv.conf, look: "dns-nameservers 2001:4860:4860::8844 2001:4860:4860::8888" But then, my resolv.conf remain only with the first one: nameserver 2001:4860:4860::8844 Apparently, Ubuntu (resolvconf / ifupdown) is ignoring the second DNS Name Server, so, how to fix it?!