204.17.16.0/20 Unreachable via Comcast ASN 7992; Looking for Help or Contacts

Phil Fagan philfagan at gmail.com
Wed Aug 7 21:31:52 UTC 2013


BGP Noob question here; but wouldn't Time Warner not recieve a prefix if it
wasn't reachable? Is this an artifact?


On Mon, Aug 5, 2013 at 11:32 AM, Chad Reid <Chad.Reid at apollogrp.edu> wrote:

> Thanks for the assistance everyone. This issue was resolved by shutting
> down a BGP peering session between Time Warner and Comcast. --Chad
>
> Chad M. Reid, Network Administrator II
> Work Hours: Sun. - Tue. 6AM-6PM and  Wed. 6AM-3PM (MST -7)
> Apollo Group | IT Services │ IT Operations Center (ITOC)
> 4025 S. Riverpoint Parkway │ MS: AA-M002 │ Phoenix, AZ 85040
> phone: 602.557.6746 │ fax: 602.557.6606 │ email: chad.reid at apollogrp.edu
>
>
> -----Original Message-----
> From: Chad Reid
> Sent: Sunday, August 04, 2013 7:41 AM
> To: 'nanog at nanog.org'
> Subject: 204.17.16.0/20 Unreachable via Comcast ASN 7992; Looking for
> Help or Contacts
>
> Hello NANOG,
>
> A few hundred of our users that use Comcast in the South East United
> States (other regions aren't affected) are unable to access our websites in
> the IP block 204.17.16.0/20. Based upon testing with the users, they're
> getting a destination unreachable from a Comcast backbone router in ASN
> 7922:
> be-16-pe03.56marietta.ga.ibone.comcast.net [68.86.83.134] reports:
> Destination net unreachable.
>
> We're not a customer of Comcast, nor are any of our ISPs. Because of this,
> we can't find anyone at Comcast to look at this issue nor do we have good
> contact info to even reach someone. Our users in the South East can open
> tickets with Comcast technical support, but you can imagine how successful
> they are trying to explain this to frontline support and getting frontline
> support to understand.
>
> Is anyone from Comcast on the list that can assist or know of a contact?
>
>
> Chad M. Reid, Network Administrator II
> Work Hours: Sun. - Tue. 6AM-6PM and  Wed. 6AM-3PM (MST -7) Apollo Group |
> IT Services │ IT Operations Center (ITOC)
> 4025 S. Riverpoint Parkway │ MS: AA-M002 │ Phoenix, AZ 85040
> phone: 602.557.6746 │ fax: 602.557.6606 │ email: chad.reid at apollogrp.edu
>
>
>
> This message is private and confidential. If you have received it in
> error, please notify the sender and remove it from your system.
>
>
>
>


-- 
Phil Fagan
Denver, CO
970-480-7618


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