Description: The Dual Stack in OSPF (Open Shortest Path First) is a network configuration that allows the coexistence of two Internet protocols, IPv4 and IPv6, within the same routing infrastructure. This feature is crucial in an environment where both types of IP addresses are needed, facilitating the transition from IPv4 to IPv6. The Dual Stack enables routers to simultaneously handle routes for both protocols, optimizing resource use and improving routing efficiency. In this configuration, OSPF runs on two separate instances, one for IPv4 and another for IPv6, allowing network administrators to effectively manage routing policies and routing tables for each protocol. This duality not only simplifies the management of mixed networks but also ensures that communications are smooth and uninterrupted, regardless of the protocol used. The implementation of the Dual Stack is especially relevant in various networking environments, where compatibility with both protocols is essential to ensure connectivity and interoperability between different systems and devices.