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txydhr 否的,HE 官网的 FAQ 都说了不行:
https://ipv6.he.net/certification/faq.phpMy ISP uses CGNAT. Can I configure an IPv6 tunnel?
Such a configuration has all the above complications of NAT, in addition to no ability to adjust the CGNAT router. It's highly unlikely to work as CGNAT relies on TCP and UDP ports within normal IPv4 traffic for forwarding to the proper end-user, and CGNAT implementation usually do not have any knowledge of how to forward 6in4 traffic.