[156148] in North American Network Operators' Group
Re: time-b.netgear.com/time-c.netgear.com dns queries
daemon@ATHENA.MIT.EDU (valdis.kletnieks@vt.edu)
Fri Sep 7 21:37:29 2012
To: Basil Baby <basilbaby@gmail.com>
In-Reply-To: Your message of "Fri, 07 Sep 2012 20:44:44 -0400."
<CAGdg5QCHSBzgxa7H_qoNW6iguRxR4vhBR-CsCymrFMnjhvs77w@mail.gmail.com>
From: valdis.kletnieks@vt.edu
Date: Fri, 07 Sep 2012 21:36:01 -0400
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
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On Fri, 07 Sep 2012 20:44:44 -0400, Basil Baby said:
> Hmm... Even though similar issue was identified in 2003, looks like still
> there are devices in market with those old firmwares or similar
> behavior. sheesh !! :(
A long long time ago in a network far far away, one of our campus NTP servers
was a machine under my desk. That machine was shut down
around 2002/06/30 22:49 and we didn't re-assign the IP address ever since
*because* it kept getting hit with NTP packets.. Yes, a decade ago.
A few months ago I ran a test of how many things were still using it. In the
first 15 minutes, 234 different IP's tried to NTP to that address, which has
been a black hole for a decade. After 3 hours, I had almost 2,000 IPs.
Interestingly enough, the *hostname* is still in use (by another machine under
my desk) - and it gets near zero hits. So it's all hardcoded IP addrs not
hostnames.
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