Re: Open Letter to D-Link about their NTP vandalism

From: Nicholas Suan (no email)
Date: Sat Apr 08 2006 - 12:17:20 EDT

  • Next message: Hank Nussbacher: "Re: New BGP noise analysis"

    On Sat, Apr 08, 2006 at 10:51:27AM -0500, Church, Chuck wrote:

    > Since the intended (and announced) use of this server is just for DIX
    > networks, blocking NTP from any other networks should be trivial. That
    > IP address will still be hit by D-Link devices looking for a suitable
    > server, but with no response, they'll move onto another device, and
    > probably never try the DIX address again, at least until they're
    > rebooted. That alone should kill off 95% of the unwanted traffic
    > hitting the box, and probably 80% of the traffic even being sent to DIX
    > in the first place.

    It would be nice if it were that simple. However there are an annoyingly
    large amount of poorly-written clients whose polling ratios do not
    decrease after they get no response from the server. There have even
    been some clients whose polling rate *increases* after they get no

  • Next message: Hank Nussbacher: "Re: New BGP noise analysis"

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