A company implements a new network utilizing only IPv6 addressing and needs to connect to the internet. Which of the following must be enabled in order for the internal network to contact servers on the internet?

Rationale

NAT64 must be enabled for the internal network to contact servers on the internet using IPv6.

NAT64 is a translation mechanism that allows IPv6-only clients to communicate with IPv4 servers, essential for enabling connectivity in environments where only IPv6 is implemented. This facilitates access to the broader internet, which still contains many IPv4 resources.

A (MPLS) YOUR ANSWER

Multiprotocol Label Switching (MPLS) is a technique used to manage traffic flows across networks efficiently. However, it does not provide translation between IPv6 and IPv4 and, thus, does not directly enable IPv6-only networks to access IPv4-only internet resources.

B (NAT64) CORRECT

NAT64 is specifically designed for scenarios where IPv6 addresses need to connect to IPv4 addresses. It translates IPv6 packets into IPv4 packets, allowing seamless communication between IPv6-only internal networks and IPv4 servers on the internet, making it the necessary choice for this situation.

C (GRE) YOUR ANSWER

Generic Routing Encapsulation (GRE) is a tunneling protocol that encapsulates packets from one protocol within another. While it can facilitate communication between different types of networks, it does not perform address translation and is not suitable for enabling IPv6-only networks to access IPv4 resources.

D (Static routing) YOUR ANSWER

Static routing involves manually configuring routes in a network, directing traffic based on predefined paths. Although it is essential for directing traffic within a network, it does not address the need for translation between IPv6 and IPv4, which is crucial for internet connectivity in this scenario.

Conclusion

For an IPv6-only internal network to effectively connect to the internet and reach IPv4 servers, enabling NAT64 is crucial. This mechanism bridges the gap between the two protocols, allowing for necessary communication. Other options such as MPLS, GRE, and static routing do not provide the required translation functionality and therefore cannot fulfill this requirement.

A company implements a new network utilizing only IPv6 addressing and needs to connect to the internet. Which of the following must be enabled in order for the internal network to contact servers on the internet?

NAT64 must be enabled for the internal network to contact servers on the internet using IPv6.

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