Using PFsense on Docomo 10g

Hello. I purchased a router using PFsense because I heard from ISP, Docomo 10G/Provider docomo net in Japan, that I don’t need to use their router. However, I can only use IPv6 and can only access websites like Google. I contacted support about supporting MAP-E or DS-Lite, but they only told me to wait. For example, I thought I need to set up GIFs in PFsense. Different support personnel provided different information, but I did receive information about IPOE IPv4 over IPv6. Do have any advice or suggestions? Any input would be greatly appreciated.