RT-BE88U: IPv6 routing fails for LAN clients

[jzchen]

Thanks. Mine is Spectrum in Calif. running coax to a modem (modem only) then to the Asus router (Cat6) with 1 Gbps down service. All devices/computers are on wifi serving by Asus router.

I'm pretty sure I tried the combination of settings that I shared, and eventually factory reset, then just simply enabled IPv6 to Native...

EDIT: This is my OnePlus Open result, I believe same as wired...

 

[jzchen]

AiProtection has been on...

 

[marsman]

Thanks. I think my problem is that my local computers connected to the router didn't get a public ipv6 address? The router got a public ipv6 address (in addition to local ipv6 address) and is fine pinging ipv6 hosts on Internet from the router. My computer only got a local ipv6 address.

 

[marsman]

I also just connected my computer directly to the LAN port on the router and still not working so it wasn't with wifi.

Pinging from the router to ipv6 host worked, but pinging from local computer didn't:

PING ipv6.google.com (2607:f8b0:4007:80c::200e): 56 data bytes
64 bytes from 2607:f8b0:4007:80c::200e: seq=0 ttl=117 time=11.828 ms
64 bytes from 2607:f8b0:4007:80c::200e: seq=1 ttl=117 time=14.273 ms
64 bytes from 2607:f8b0:4007:80c::200e: seq=2 ttl=117 time=13.503 ms
64 bytes from 2607:f8b0:4007:80c::200e: seq=3 ttl=117 time=13.906 ms
64 bytes from 2607:f8b0:4007:80c::200e: seq=4 ttl=117 time=11.214 ms

--- ipv6.google.com ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max = 11.214/12.944/14.273 ms

 

[jzchen]

I just checked and my phone has 3 IPv6 addresses:
fe80::...
2600:xxxx:xxxx:xxxx:yyyy:yyyy:yyyy:yyyy
2600:xxxx:xxxx:xxxx:zzzz:zzzz:zzzz:zzzz

xxxx part is exactly the same...

Seems like Spectrum is also dual stack and should be the same. Please check if the modem model is IPv6 friendly, (minimum DOCSIS 3.0 from my search).