Hi, I have a question about 6to4 address utilisation. May i post it here ? Thanks everyone for your guidance. 6to4 is a tunnel method. From an IPv4 address, we have /48 6to4 IPv6 space. So i'm wonder if this /48 range can be commonly used for our IPv6 network (workstations, servers) like native IPv6, or it just be used only for tunnel, to connect native IPv6 lands. Thank you once more, Thu Thuy Development & Research Department. Vietnam Internet Network Information Center - VNNIC.