Comcast DNS Issue?

Thu Dec 5 16:02:29 UTC 2013

Hi Ulf,

Our issue was that 75.75.75.75 was not responding to queries at all and for some reason clients weren't getting redirected to 75.75.76.76.  For us all is well now, my email was stuck in Nanog Approval land for a couple of days so I couldn't give an update to the list until today.

Have a good day,
Aaron

[Description: Description: Description: logo-email]

Aaron Childs, CCNA
Associate Director, Networking
Information Technology
www.westfield.ma.edu/it<http://www.westfield.ma.edu/it>
Please Note: new e-mail address - aaron at westfield.ma.edu<mailto:aaron at westfield.ma.edu>

From: Ulf Zimmermann [mailto:ulf at alameda.net]
Sent: Thursday, December 05, 2013 7:28 AM
To: Childs, Aaron
Cc: nanog at nanog.org
Subject: Re: Comcast DNS Issue?

Is your issue that it gives out old DNS records? Because I am trying to track something down for an user on Comcast who is still getting the old IP of a VPN concentrator. The DNS records has a TTL of 30 minutes, yet a week later the end user is still getting the old IP. Haven't been able to get him to query 75.75.75.75 and 75.75.75.76 directly to see if he gets the IP from there.

On Tue, Dec 3, 2013 at 11:46 AM, Childs, Aaron <aaron at westfield.ma.edu<mailto:aaron at westfield.ma.edu>> wrote:
Good Afternoon,

If there is a Comcast DNS Engineer on the list could you contact me off-list?  We are experiencing an odd issue with 75.75.75.75.

Thanks,
Aaron

[Description: Description: Description: logo-email]

Aaron Childs, CCNA
Associate Director, Networking
Information Technology
www.westfield.ma.edu/it<http://www.westfield.ma.edu/it><http://www.westfield.ma.edu/it>
Please Note: new e-mail address - aaron at westfield.ma.edu<mailto:aaron at westfield.ma.edu><mailto:aaron at westfield.ma.edu<mailto:aaron at westfield.ma.edu>>

--

Ulf Zimmermann, 1525 Pacific Ave., Alameda, CA-94501, #: 510-396-1764
You can find my resume at: http://www.Alameda.net/~ulf/resume.html
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