Solution for IPv6 for AC68U

[itskidrock]

This is a working solution to properly configure IPv6 on this model. I have verified optimal speed performance. .

Applies to ASUS AC68U (AC1900)

Login to Sonic and view IPv6 Tunnels info @ https://members.sonic.net/labs/ipv6tunnel/#

Transport: 2001:XXXX / 127 (Same as examples for sonic-side transport IP)
Network: 2001:XXXXX / 60 (Used for LAN prefix)

Tunnel Configuration Examples: (Sonic)
208.201.234.221 = sonic-side v4 address
198.27.204.106 = customer-side v4 address
2001:05a8:0000:0001:0000:0000:0000:1d7e = Sonic-side transport IP (aka short form 2001:05a8:0:1::1d7e)
2001:05a8:0000:0001:0000:0000:0000:1d7f = customer-side transport IP aka short form 2001:05a8:0:1::1d7f)

Router Configuration

Basic Config
Connection type: Tunnel 6in4
Server IPv4 Address: 208.201.234.221
Client IPv6 Address : 2001:05a8:0:1::1d7f (From Tunnel Configuration Examples)
IPv6 Prefix Length: 64 (Cannot utilize 127 so highest is 64)
Server IPv6 Address: 2001:05a8:0:1::1d7e (From Tunnel Configuration Examples)
Tunnel MTU: 0 (Auto)
Tunnel TTL: 255

IPv6 LAN Setting
LAN Prefix Length: 64
LAN IPv6 Prefix: 2001:XXXX:XXXXX:XXXX:: (Use short form)

IPv6 DNS Setting
IPv6 DNS Server 1: 2001:4860:4860::8888
IPv6 DNS Server 2: 2001:4860:4860::8844

To understanding using short form or abbreviation for IPv6 https://developers.google.com/speed/pub ... docs/using

[parker_day]

The AC68U also works with the 6rd tunnel sonic uses. Or at least it did for many months before I switched over to an OnHub.