How to setup dynamic ipv6?

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How to setup dynamic ipv6?

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How to setup dynamic ipv6?
How to setup dynamic ipv6?
2021-08-15 11:39:54 - last edited 2021-08-19 10:21:33
Model: ER605 (TL-R605)  
Hardware Version: V1
Firmware Version: v1.1.1

good day tp-link network enthusiasts. I am a total noob in setting up ipv6 wan or lan.
the only way I got ipv6 working is making tl-r605 do a ipv6 passthrough

my setup is like this, double nat because I cannot afford a public ipv4 ip and my ISP only offers public ipv4 IP with a business account which is crazy expensive, so i use a vps openvpn and ssh to act as my public ip. my ISP (PLDT) just started handing out DYNAMIC ipv6 address that changes everyday and I would like to test and utilize it.
so it starts like this

ISP PLDT modem/router DHCP SERVER IPV6 addresses is 2001:xxxx:xx:xx:1234/64 and prefix 2001:xxxx:xxx:b00::/56 
the tl-r605 can gets a WAN ipv6 address using dynamic IP (slaac/dhcpv6). 2001:xxxx:xxx:b00:2/64
the confusing part is the tl-r605 LAN ipv6 settings which I cannot figure out to give proper ipv6 addresses. I tried all assigned types and only ipv6 pass through work (but is buggy)

ISP PLDT modem/router settings

tl-r605 WAN settings


tl-r605 LAN settings


tl-r605 LAN ipv6 messing with settings using assigned type dhcp v6, slaac+stateless dhcp, slaac +rdnss always failing on the ipv6 tests except passthrough mode

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Re:How to setup dynamic ipv6?-Solution
2021-08-17 09:36:26 - last edited 2021-08-19 10:21:33

If you have double NAT and configured IPv6 parameters on the ISP router, you can only configure IPv6 pass-through on TP-Link router. In this case, TP-Link router won't get an IPv6 address from the ISP router, but the IPv6 devices that connect to TP-Link router can get IPv6 addresses directly from the ISP router. TP-Link router can be regarded as a switch in this case.

You don't need to configure LAN on TP-Link router.

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Re:How to setup dynamic ipv6?-Solution
2021-08-17 09:36:26 - last edited 2021-08-19 10:21:33

If you have double NAT and configured IPv6 parameters on the ISP router, you can only configure IPv6 pass-through on TP-Link router. In this case, TP-Link router won't get an IPv6 address from the ISP router, but the IPv6 devices that connect to TP-Link router can get IPv6 addresses directly from the ISP router. TP-Link router can be regarded as a switch in this case.

You don't need to configure LAN on TP-Link router.

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