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As of June 2012, the ISP named RCS&RDS offers dual-stack IPv4/IPv6 PPPoE services to current home users using modern versions of Microsoft Windows, Mac OS X, Linux and other IPv6-ready devices. [232] More than 1 million RCS & RDS residential customers can now use native IPv6 on a dual-stack PPPoE connection and 16% [ 233 ] already do.
Port Control Protocol (PCP) is a computer networking protocol that allows hosts on IPv4 or IPv6 networks to control how the incoming IPv4 or IPv6 packets are translated and forwarded by an upstream router that performs network address translation (NAT) or packet filtering.
NAT64 is an IPv6 transition mechanism that facilitates communication between IPv6 and IPv4 hosts by using a form of network address translation (NAT). The NAT64 gateway is a translator between IPv4 and IPv6 protocols, [1] for which function it needs at least one IPv4 address and an IPv6 network segment comprising a 32-bit address space.
Teredo nodes elsewhere on the IPv6 network (called Teredo relays) receive the packets, un-encapsulate them, and pass them on. Teredo is a temporary measure. In the long term, all IPv6 hosts should use native IPv6 connectivity. Teredo should be disabled when native IPv6 connectivity becomes available.
Windows NT (includes Windows 10 Mobile, and Xbox One onwards) 5.1 Yes No Add-on [9] No Windows XP users can use Dibbler, an open source DHCPv6 implementation. --update: Windows XP fully supports IPv6- but NOT IPv6 DNS queries (nslookup) [30] 6.x (Vista, 7, 8, 8.1), 10 RTM-Anniversary Update: Yes [31] Yes Yes [9] No
Windows Firewall and the IPsec Policies snap-in support IPv6 addresses as permissible character strings. In IPv6 mode, Windows Vista can use the Link Local Multicast Name Resolution (LLMNR) protocol, as described in RFC 4795, to resolve names of local hosts on a network which does not have a DNS server running.
An IPv6 packet is the smallest message entity exchanged using Internet Protocol version 6 (IPv6). Packets consist of control information for addressing and routing and a payload of user data. The control information in IPv6 packets is subdivided into a mandatory fixed header and optional extension headers.
For firewalls performing a network address translation (NAT) function, the mapping between the external IP address, port socket and the internal IP address, port socket is often called a pinhole. Pinholes can be created manually or programmatically.