Question: When provisioning an SDF Filter for traffic from a CP-function to a UE, how should the CP function set the IPFilterRule parameters in the Flow Description?
Option 1: Set 'source' parameters to correspond to the UE and 'destination' parameters to correspond to the CP function.
Option 2: Set 'source' parameters to correspond to the CP function and 'destination' parameters to correspond to the UE.
Option 3: Swap the source and destination address/port regardless of the traffic direction.
Option 4: Use default IPFilterRule parameters as specified by the UP function.
Explanation: According to provisioning rules for SDF filters, when traffic is intended to be forwarded to the UE from a CP-function (or SGi-LAN), the Flow Description should be provisioned with the IPFilterRule 'source' parameters set to correspond to the CP function (or SGi-LAN) and the IPFilterRule 'destination' parameters set to correspond to the UE, ensuring correct filtering based on the actual traffic flow direction.