US Cable Support → Comcast HSI > [Speed] New Comcast dual stack speed test

Re: [Speed] New Comcast dual stack speed test

i use IE10 and Opera16, I have no router only modem and it's an Arris tm822 from the link you provided I get

Your CMTS is not supported at this time
Your IPv4 address on the public Internet appears to be
removed

Your IPv6 address on the public Internet appears to be 2002:328c:3f32::328c:3f32
Your IPv6 service appears to be: 6to4

Your Internet Service Provider (ISP) appears to be COMCAST-20214 - Comcast Cable Communications Holdings, Inc

Good news! Your current configuration will continue to work as web sites enable IPv6.

You appear to be using a public 6to4 gateway; your router may be providing this to you automatically. Such public gateways have no service level agreements; you may see performance problems using such. Better would be to get a native IPv6 address from your ISP. [more info]

Your DNS server (possibly run by your ISP) appears to have IPv6 Internet access.

Test with IPv4 DNS record
ok (0.137s) using ipv4

Test with IPv6 DNS record
ok (0.146s) using ipv6 6to4

Test with Dual Stack DNS record
ok (0.616s) using ipv4

Test for Dual Stack DNS and large packet
ok (0.394s) using ipv4

Test IPv4 without DNS
ok (0.196s) using ipv4

Test IPv6 without DNS
ok (0.234s) using ipv6 6to4

Test IPv6 large packet
ok (0.134s) using ipv6 6to4

Test if your ISP's DNS server uses IPv6
ok (0.664s) using ipv4

Find IPv4 Service Provider
ok (0.533s) using ipv4 ASN 20214

Find IPv6 Service Provider
ok (0.488s) using ipv6 6to4

in my area, pleasanton, powerboost is only eliminated on the 105mbit tier
it might just be area specific though

i cant figure out how to get ipv6 working on my vyatta router, i have the edgerouter lite, so i have a second router hooked up to the internet just for ipv6 which was a cheap 40 dollar router

why can't I test the ipv6. I have Comcast and windows 8 and I live in Miami florida usa 33193

said by ShaperProbe :

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DiffProbe release. January 2012. Build 1008.
Shaper Detection Module.

Connected to server 4.71.251.175.

Estimating capacity:
Upstream: 11111 Kbps.
Downstream: 113246 Kbps.

The measurement will take upto 2.5 minutes. Please wait.

Checking for traffic shapers:

Upstream: Burst size: 4618-4911 KB;
Shaping rate: 3192 Kbps.

Downstream: Burst size: 7761-8820 KB;
Shaping rate: 17024 Kbps.

---

http://stage.results.speedtest.comcast.net/result/319936124.png

Re: [Speed] New Comcast dual stack speed test

It doesn't really matter to me, I hardly ever run the test.

But it seems to me that seeing most people still don't have IPv6 and most people run IE, it could be a problem.

I even tried it on my test box with windows 8.1 and IE11 and it does the same

That sounds like an IE10 glitch, recent update make it difficult to set popup and cookie info, and sometimes it locks at the request.

CC doesn't publish Geo info on IPv6 and I've never figured out what imaginary spot the test thinks it is at (tried tests across the country and the distance "circle" seem to conflict) It can't be anywhere ComCast actually serves
You'd think the test would continue to use the v4 location, but it may be deliberate to not reveal anything on the v6 location

Not a Comcast user, and IPv6 is a tunnel. Nevertheless:

Where does it stop?
If you have no IPv6 it can't do that test.
If it just doesn't show the pic link graphic, that's one of the IE10 glitches

It pretty much borks the test for us on IE10 and no IPv6....hangs after the IPv4 test.

quote:

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How do have an 8ms ping at 7750 miles?!?!?!?

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How do have an 8ms ping at 7750 miles?!?!?!?

Do you have native dual stack?
Because appears to have only run the IPv4 test, which would be normal if that's all you have available/working.

Doesn't work for me. Chrome win 7

Windows 8 - Firefox 24 (not private or anything) and it stalls on the IPv6 test as well. Admittedly I am doing this from Charter and using a HE IPv6 tunnel so maybe that has something to do with it.