QUOTE(BenYeeHua @ Feb 20 2022, 09:15 PM)
For China mainland, ISP are stop assigning public IPv4 to users now, but asking ISP to provide more IPv6 support with free upgrading their fiber modem to latest.
Their ISP is interesting, just single fiber modem with router + WiFi feature, the only downside like us, modem + PPPoE unable running on high speed, but cheap 300M than us.
So they normally just changing fiber modem to dial-up mode, then connect router to fiber modem for PPPoE, bypassing modem CPU for letting router processing NAT and problem solved.
But as I know, still many lack of IPv6 support, because their apartment's owner are giving a LAN cable, a local PPPoE account, then dial-up to the first floor server.
Except those having FTTH like us and free upgrade for fiber speed and modem, still many lack of IPv6 support because of strange owner's setup to earn for internet money with cheap internet....
So far I am using TeamViewer to connect them sometimes, also interesting, IPv6 allowing UDP connection, giving a much more stable connection than over TCP on IPv4.
TeamViewer can checking the latency for me to server, and another side to server, very helpful, can blame the right side who having bad connection, me or him.
So if want the best performance separate the modem and router still is the first choice (if modem not good enough)
For enthusiast,Fiber modem + Non-Wifi Router + Dedicated Wifi AP will getting the best performance. (Or like the Anime4000 use SFP GPON with router also a good solution as the Fiber modem provided by ISP is not so powerful)