Which technique can you use to route IPv6 traffic over an IPv4 infrastructure?
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A. B. C. D.B.
To route IPv6 traffic over an IPv4 infrastructure, one of the possible techniques is 6 to 4 tunneling, which is the correct answer from the given options.
6 to 4 tunneling is a technique that allows IPv6 traffic to be transmitted over an IPv4 infrastructure without requiring native IPv6 support from the underlying network. In this technique, the IPv6 traffic is encapsulated within an IPv4 packet and then sent across the IPv4 network. At the receiving end, the IPv6 traffic is extracted from the IPv4 packet and forwarded to the final IPv6 destination.
The 6 to 4 tunneling technique requires the use of special gateway devices called 6 to 4 tunnel routers, which encapsulate and decapsulate IPv6 traffic within IPv4 packets. These devices are typically placed at the border between the IPv4 and IPv6 networks.
The 6 to 4 tunneling technique uses a specific range of IPv6 addresses called the 6to4 address range (2002::/16), which is derived from the IPv4 address of the gateway device. This allows multiple 6 to 4 tunnel routers to be deployed on the same IPv4 network without overlapping IPv6 address ranges.
In contrast, NAT (Network Address Translation) is a technique that allows multiple devices on a private network to share a single public IP address. NAT is commonly used in IPv4 networks, but it is not designed to handle IPv6 traffic. L2TPv3 (Layer 2 Tunneling Protocol Version 3) is a protocol that provides virtual private network ( VPN) connectivity over an IP network, but it does not address the issue of routing IPv6 traffic over an IPv4 infrastructure. Finally, dual-stack is a technique that involves running both IPv4 and IPv6 protocols on a network simultaneously, which allows devices to communicate using either protocol as needed. However, this technique does not address the issue of routing IPv6 traffic over an IPv4 infrastructure.