Question: How are NAUN3 devices, which cannot be authenticated by the 5G Core Network (5GC), typically authenticated when connected behind a 5G-Radio Access Gateway (5G-RG)?
Option 1: Using a pre-shared secret for local authentication by the 5G-RG
Option 2: Through direct interaction with the 5GC using standard 5G authentication protocols
Option 3: By leveraging an external authentication server integrated with the 5G-RG
Option 4: Authentication is not required for NAUN3 devices in this scenario
Explanation: Since NAUN3 devices cannot be authenticated by the 5GC, an alternative method is used. Local authentication by the 5G-RG, such as using a pre-shared secret, provides a feasible solution for managing and securing these devices within the network, ensuring differentiated services can still be effectively provided.