Hole punching is ineadequate for routers with address-dependent NAT mappings or with DS-Lite/CGNAT. With UPnP-IGD or NAT-PCP/PMP the CPE can forward the port mappings to the AFTR/CGN.
Hole punching is ineadequate for routers with address-dependent NAT mappings or with DS-Lite/CGNAT. With UPnP-IGD or NAT-PCP/PMP the CPE can forward the port mappings to the AFTR/CGN.