AT&T. Layer 6-8 needed.

Shon Elliott shon at
Mon Jul 27 03:05:32 UTC 2009

There has been alot of customers on our network who were complaining about ACK
scan reports coming from We had no choice but to block that
single IP until the attacks let up. It was a decision I made with the gentleman
that owns the colo facility currently hosts 4chan. There was no other way around
it. I'm sure AT&T is probably blocking it for the same reason. 4chan has been
under attack for over 3 weeks, the attacks filling up an entire GigE. If you
want to blame anyone, blame the script kiddies who pull this kind of stunt.

Shon Elliott
Senior Network Engineer
unWired Broadband, Inc.

jamie wrote:
> All,
>   It appears at AT&T (including DSL, and my own home service via u-verse)
> has unilaterally and without explanation started blocking websites.
>   I have confirmed this with multiple tests.  (It actually appears that
> these sites are being blocked at a local-global scale -- that is, each
> city/hub seems to have blackholes for the sites).
>   The sites I know of I'll list below (see Reddit for a discussion), but
> this is clearly and absolutely unacceptable.  Please, comments on the nature
> of the sites are OT.. Let's keep this thread that way.  (Away from being OT,
> that is).
>   If any T folk are around, and have gotten wind of this (all comments /
> direct emails will be off record), a reply would be appreciated.
>   No ears enclosing clue will be reached via normal channels at ~950E on a
> Sunday, but this is clearly a problem needing addressing, resolution, action
> and, who knows - suit?
>   Thanks in advance all for insight, comments,
> -jamie

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