millercentral
Occasional Visitor
(TL;DR: Does the AC87U CTF hardware acceleration work with IPv6 traffic?)
I recently got symmetrical gigabit internet, and so far I've been really happy with the performance of my AC87U with this service.
But now I've started looking into enabling IPv6 support, and I'm trying to understand the speed discrepancies. This speedtest has me concerned (note, my service is not with Comcast, but their speedtest is the only gigabit-capable test that does both IPv4 and IPv6 testing that I know of):
My router connects directly to the ISP/internet via PPPoE (there is no modem) and my ISP uses a "6rd" style IPv6 tunneling technique, here are the details from the System Log tab:
I know their could be a lot of reasons why the two stacks speedtest differs so much, but my first question is: Does anyone know if the AC87U "NAT Acceleration" (aka "Cut Through Forwarding") works with IPv6 traffic?
Other suspects for the discrepancy include: The IPv6 SpeedTest server doesn't support gigabit speeds, or IPv6 traffic is throttled by the ISP IPv6 tunnel gateway, or something else I haven't thought of yet. Any suggestions on how to get to the bottom of this would be appretiated.
In the end IPv6 is not critical for my needs and I could just turn it off, but I'd love to understand what's going on.
Thanks for any insight.
I recently got symmetrical gigabit internet, and so far I've been really happy with the performance of my AC87U with this service.
But now I've started looking into enabling IPv6 support, and I'm trying to understand the speed discrepancies. This speedtest has me concerned (note, my service is not with Comcast, but their speedtest is the only gigabit-capable test that does both IPv4 and IPv6 testing that I know of):
My router connects directly to the ISP/internet via PPPoE (there is no modem) and my ISP uses a "6rd" style IPv6 tunneling technique, here are the details from the System Log tab:
Code:
IPv6 Connection Type: Tunnel 6rd
WAN IPv6 Address: 2602:##:####:####::/24
WAN IPv6 Gateway: ::205.171.2.64
LAN IPv6 Address: 2602:##:####:####::1/56
LAN IPv6 Link-Local Address: fe80::ae9e:17ff:fe95:1920/64
LAN IPv6 Prefix: 2602:##:####:####::/56
DNS Address: 2001:428::1 2001:428::2I know their could be a lot of reasons why the two stacks speedtest differs so much, but my first question is: Does anyone know if the AC87U "NAT Acceleration" (aka "Cut Through Forwarding") works with IPv6 traffic?
Other suspects for the discrepancy include: The IPv6 SpeedTest server doesn't support gigabit speeds, or IPv6 traffic is throttled by the ISP IPv6 tunnel gateway, or something else I haven't thought of yet. Any suggestions on how to get to the bottom of this would be appretiated.
In the end IPv6 is not critical for my needs and I could just turn it off, but I'd love to understand what's going on.
Thanks for any insight.
