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NetFixer
Bah Humbug
Premium
join:2004-06-24
The Boro
Reviews:
·Vonage
·Comcast Business..
·Cingular Wireless

1 edit

IPv6 vs IPv4 reliability through my Comcast connection

I am posting this example of the IPv6 vs IPv4 reliability on my Comcast connection as a comment because the official review update will not allow imbedded code (which is needed to illustrate my point).

Shown below is a prime example of the problem. This is of course, not Comcast's fault; it is just an indication of the current state of IPv6 implementation on the Internet (and it does not just occur with Yahoo!):




An attempt to access http://my.yahoo.com during the above time frame (with native IPv6 active) results in an extremely long delay (like several minutes) in loading the Yahoo! start page, or a browser timeout. And once again I will reiterate that this symptom also happens on sites other than Yahoo!.

Shown below are repeated successfull IPv4 pings to the same host name:



--
A well-regulated militia, being necessary to the security of a free State, the right of the people to keep and bear arms shall not be infringed.

When governments fear people, there is liberty. When the people fear the government, there is tyranny.


NetFixer
Bah Humbug
Premium
join:2004-06-24
The Boro
Reviews:
·Vonage
·Comcast Business..
·Cingular Wireless

1 edit

1 recommendation

It is possible that the IPv6 problems I was seeing were related to my DIR655 sometimes getting a "/60" and sometimes getting a "/64" PD prefix assignment combined with a CMTS bug. See NetDog See Profile's post »Re: [IPv6] Comcast IPv6 Address Assignment/Delegation for details. Since that announcement, I have only been getting the "/64" PD prefix assignments, and I do not currently see the problem with CDN and round robin IPv6 servers frequently not responding.
--
A well-regulated militia, being necessary to the security of a free State, the right of the people to keep and bear arms shall not be infringed.

When governments fear people, there is liberty. When the people fear the government, there is tyranny.

brockalee

join:2003-08-17
Jacksonville, FL
Just wanted to say thanks for posting all this info. I was basically just trying to get a feel for Comcast VOIP reliability and you gave a lot of great info in your posts. Thanks!