Thanks to Loa for reminding me of the questions.
Actually my question is more fundamental. The 3GPP Mobility Management Function
manages the IP address assignments to UEs. Traffic from UEs are tunneled by GTP
tunnel between the eNB and UPF. Many UPF has NAT, so the IP network might not
see
Hi Linda, Loa,
Consider a traditional 5G deployment with all necessary NFs, including a
central UPF. SMF signals to the UPF on N4 interface. AMF signals to gNBs on N2
interface. The N3 transport (between gNBs and the UPF) is via an IPVPN over a
transport infrastructure. There are PEs next to
