A company requested that an architect propose a new IPv4 and IPv6 deployment strategy. The company wants a solution that is straightforward, with no information hiding or forwarding overhead. Which…

GRE tunnels introduce encapsulation overhead and can obscure the inner packet information, which is a form of forwarding overhead and information hiding.

LISP (Locator/ID Separation Protocol) is a complex architectural solution that uses tunneling, adding forwarding overhead and requiring a mapping system, which is not straightforward.

NAT64 performs address translation between IPv6 and IPv4, which fundamentally involves information hiding (addresses are translated) and introduces processing overhead for the translation function.

Dual-stack involves running both IPv4 and IPv6 protocol stacks simultaneously and independently on network devices and hosts. This method is straightforward because it avoids complex translation or tunneling mechanisms, meaning there is no additional forwarding overhead introduced by encapsulation or address manipulation. Furthermore, it allows both IPv4 and IPv6 addresses to be directly visible, thus preventing any information hiding between the two protocols.