Communication between IPV6 and IPV4 devices

IPV4 and IPV6 cannot directly communicate with each other since the transition is no compatible. But in case if there is a translator protocol available between these two protocols then communication is possible. So, the answer is both yes and no, depending on the environment.

For a solution to this problem, we use certain technologies for the translation which are as follows:

Dual-Stack Routers

It is configured in-between in order to transition from IPV4 to IPV6.

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Both IPv4 and IPv6 addresses can communicate with IPv4 and IPv6 via a dual-stack router. The dual-stack router (DSR) gives the path for all the hosts to communicate with the server without changing their IP addresses.

Tunneling Mechanism

Tunneling is used to communicate the transit network with the different internet protocol versions. The concept is not new; many people use tunneling, but for other reasons. IP tunnels provide a virtual link between two devices that are reachable by using IP. The link can thus be used to transport IPv6 packets over the IPv4 networks to enable communication.

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Many different tunneling methods are available, depending on the specific implementation details. The table below lists commonly available tunneling methods and their usage.

Tunneling Method Usage
IPv4 tunnels Provide a point-to-point IPv6 link over an existing IPV4 network.
6to4 Provide a point-to-multipoint IPv6 link over an existing IPv4 network.
IPv6 tunnels Provide point-to-multipoint IPv6 links over an existing IPv4 network.

6to4 IPv6 Tunneling Method

It is a transition mechanism. It enables tunneling of IPv6 packets into IPv4 for transport across an IPv4 network. It allows automatic IPv6-to-IPv4 address translation. The path of an IP from Host A to host R2. The packet begins as a normal IPv6 packet. These addresses do not change for the life of the packet.

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The destination address is calculated from the route and is converted to 10.0.2.1.