nanog mailing list archives
Re: time-b.netgear.com/time-c.netgear.com dns queries
From: Ryan Rawdon <ryan () u13 net>
Date: Fri, 7 Sep 2012 19:46:44 -0500
On Sep 7, 2012, at 7:44 PM, Basil Baby wrote:
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 !! :( -Basil
While NETGEAR does have a history of issues like this, the UofW issue is likely not related to what you are seeing - that issue stemmed from them not using DNS and hardcoding the university's NTP server. The issue you are seeing seems to stem from their NTP code doing the Wrong Thing nonetheless...
On Fri, Sep 7, 2012 at 8:30 PM, Gary E. Miller <gem () rellim com> wrote:Yo Basil! On Fri, 7 Sep 2012 20:22:29 -0400 Basil Baby <basilbaby () gmail com> wrote:Noticed lot of "A" record queries for time-b.netgear.com/time-c.netgear.comon dns servers. Has anyone noticed similar behavior on any of your dns servers? Anyone aware about a known issue with netgear home routers which can create bulk dns queries?https://en.wikipedia.org/wiki/NTP_server_misuse_and_abuse#NETGEAR_and_the_University_of_Wisconsin.E2.80.93Madison RGDS GARY --------------------------------------------------------------------------- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97701 gem () rellim com Tel:+1(541)382-8588
Current thread:
- time-b.netgear.com/time-c.netgear.com dns queries Basil Baby (Sep 07)
- Re: time-b.netgear.com/time-c.netgear.com dns queries Gary E. Miller (Sep 07)
- Re: time-b.netgear.com/time-c.netgear.com dns queries Basil Baby (Sep 07)
- Re: time-b.netgear.com/time-c.netgear.com dns queries Ryan Rawdon (Sep 07)
- Re: time-b.netgear.com/time-c.netgear.com dns queries valdis . kletnieks (Sep 07)
- Re: time-b.netgear.com/time-c.netgear.com dns queries Michael Loftis (Sep 07)
- Re: time-b.netgear.com/time-c.netgear.com dns queries Basil Baby (Sep 07)
- Re: time-b.netgear.com/time-c.netgear.com dns queries Gary E. Miller (Sep 07)