nanog mailing list archives
Re: Open Letter to D-Link about their NTP vandalism
From: Nicholas Suan <nsuan () nonexiste net>
Date: Sat, 8 Apr 2006 11:17:20 -0500
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 response.
Current thread:
- Re: Open Letter to D-Link about their NTP vandalism, (continued)
- Re: Open Letter to D-Link about their NTP vandalism Valdis . Kletnieks (Apr 08)
- Re: Open Letter to D-Link about their NTP vandalism Simon Lockhart (Apr 08)
- Re: Open Letter to D-Link about their NTP vandalism Jared Mauch (Apr 08)
- Re: Open Letter to D-Link about their NTP vandalism Per Gregers Bilse (Apr 07)
- Re: Open Letter to D-Link about their NTP vandalism Nicholas Suan (Apr 07)
- RE: Open Letter to D-Link about their NTP vandalism David Hubbard (Apr 07)
- RE: Open Letter to D-Link about their NTP vandalism Todd Vierling (Apr 07)
- RE: Open Letter to D-Link about their NTP vandalism goemon (Apr 07)
- RE: Open Letter to D-Link about their NTP vandalism Church, Chuck (Apr 08)
- Re: Open Letter to D-Link about their NTP vandalism Nicholas Suan (Apr 08)
- Re: Open Letter to D-Link about their NTP vandalism Valdis . Kletnieks (Apr 09)
- Re: Open Letter to D-Link about their NTP vandalism Simon Lyall (Apr 10)
- Re: Open Letter to D-Link about their NTP vandalism Paul Vixie (Apr 10)
- Re: Open Letter to D-Link about their NTP vandalism Simon Lyall (Apr 10)
- Re: Open Letter to D-Link about their NTP vandalism Matt Ghali (Apr 10)
- Re: Open Letter to D-Link about their NTP vandalism Matthew Black (Apr 11)
- Re: Open Letter to D-Link about their NTP vandalism Joe Maimon (Apr 11)
- Re: Open Letter to D-Link about their NTP vandalism Matt Ghali (Apr 11)
- Re: Open Letter to D-Link about their NTP vandalism Nicholas Suan (Apr 08)
- Re: Open Letter to D-Link about their NTP vandalism Alain Hebert (Apr 10)
- Re: Open Letter to D-Link about their NTP vandalism Joseph S D Yao (Apr 11)