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A relay router connects to an IPv4 network and an IPv6 network. 6to4 packets arriving on an IPv4 interface will have their IPv6 payloads routed to the IPv6 network, while packets arriving on the IPv6 interface with a destination address prefix of 2002:: / 16 will be encapsulated and forwarded over the IPv4 network.
Mageia has had full support for IPv6 only and IPv4 + IPv6 since Mageia 7, as well as continuing to support IPv4 only systems. [15] macOS: Mac OS X 10.7 (Lion) Yes Yes Yes [16] Yes [17] Versions 10.7 through 10.10 often prefer IPv4 even when working IPv6 connectivity is available. [18]
6in4, sometimes referred to as SIT, [a] is an IPv6 transition mechanism for migrating from Internet Protocol version 4 (IPv4) to IPv6. It is a tunneling protocol that encapsulates IPv6 packets on specially configured IPv4 links according to the specifications of RFC 4213. The IP protocol number for 6in4 is 41, per IANA reservation. [1]
Officially, this mechanism was created for Microsoft Windows XP and onwards PCs to provide IPv6 connectivity to IPv4 clients by connecting to ipv6.microsoft.com and works in conjunction with IP Helper service and Teredo Tunneling Adapter Interface driver. The service also opens a UPNP port on the router for relaying.
IPv6 IPv6 Encapsulation (6to4 and 6in4) RFC 2473: 0x2A 42 SDRP Source Demand Routing Protocol: RFC 1940: 0x2B 43 IPv6-Route Routing Header for IPv6: RFC 8200: 0x2C 44 IPv6-Frag Fragment Header for IPv6: RFC 8200: 0x2D 45 IDRP Inter-Domain Routing Protocol: 0x2E 46 RSVP Resource Reservation Protocol: RFC 2205: 0x2F 47 GRE Generic Routing ...
An IPv6 transition mechanism is a technology that facilitates the transitioning of the Internet from the Internet Protocol version 4 (IPv4) infrastructure in use since 1983 to the successor addressing and routing system of Internet Protocol Version 6 (IPv6). As IPv4 and IPv6 networks are not directly interoperable, transition technologies are ...
Sage 200 mostly works in an IPv6 environment as it is based on Microsoft IIS. Activation will not work over IPv6 or using a proxy server so the Sage application server needs to have an IPv4 address to activate. The Sage 200 task launch will also fail to run if the IPv6 stack is uninstalled. Skype for Business: Windows All Partial
Therefore, IPv6 transition mechanisms are needed to enable IPv6 hosts to reach IPv4 services and to allow isolated IPv6 hosts and networks to reach each other over IPv4 infrastructure. [51] According to Silvia Hagen, a dual-stack implementation of the IPv4 and IPv6 on devices is the easiest way to migrate to IPv6. [52]