nanog mailing list archives

Re: Brighthouse issues


From: Jeff Kell <jeff-kell () utc edu>
Date: Tue, 30 Jul 2013 23:02:21 -0400

On 7/30/2013 10:55 PM, Jay Ashworth wrote:
----- Original Message -----
From: "Jared Geiger" <jared () compuwizz net>

We are seeing that all our customers in the Brighthouse Orlando, FL market
that would make outbound connections on TCP port 3306 suddenly can't
connect to us now. This happened suddenly mid day today.


Speculation: are these residential class cablemodem customers?  Carriers 
are prone to block uncommon ports on such modems at random.

Yeah, 3306 is MySQL.  Overly-paranoid firewall somewhere?  DDoS
mitigation collateral damage?

Jeff



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