Question: In a 5G System (5GS) with IPTV access control based on DHCP procedure, what action may the Session Management Function (SMF) perform when receiving an Uplink DHCP message from a 5G-Radio Gateway (5G-RG)?
Option 1: The SMF forwards the Uplink DHCP message without modification to maintain transparency.
Option 2: The SMF inserts IPTV access control information, received from the Unified Data Management (UDM) in subscription data, into the uplink DHCP message.
Option 3: The SMF rejects the Uplink DHCP message if no IPTV subscription is found associated with the 5G-RG's IP address.
Option 4: The SMF initiates a new DHCP discovery process to verify the 5G-RG's access rights.
Explanation: In the context of IPTV network access control via DHCP in a 5GS, the SMF ensures authorized access by inserting IPTV access control information into the uplink DHCP message, enforcing subscription-based access control and highlighting wireless and wireline convergence access support.