Answer:
In IPv4 tunneling, IPv6 packets are encapsulated in the IPv4 packets, adding a header comparing the source IP, the packet entry point to the tunnel and the destination point, as well as the exit point of the tunnel.
Explanation:
IPv6 is the latest version of the network address. They eliminate the exhaustion of addresses experienced in IPv4, but is it not used in all networks which makes it hard to communicate with other networks with IPv4 and with IPv6 addresses through IPv4 medium.
To avoid the needed to reconfigure other IPv4 networks to IPv6 and establish communication between the networks, IPv4 tunneling is used to transmit IPv6 packets from one IPv6 network to other IPv6 networks through the IPv4 transmission cables or mediums.
