[19258] in North American Network Operators' Group
Re: Crazy flying netbios packets
daemon@ATHENA.MIT.EDU (Paul Thornton)
Thu Sep 3 13:02:59 1998
Date: Thu, 3 Sep 1998 17:48:31 +0100 (BST)
From: Paul Thornton <prt@linx.net>
To: Pete Ashdown <pashdown@xmission.com>
cc: nanog@merit.edu
On Wed, 2 Sep 1998, Pete Ashdown wrote:
> Has anyone done any estimates on how much net-wide traffic is useless
> netbios udp? Are there any suggestions for cutting large chunks of this
> out of my network without punishing SAMBA and other users who need it?
On the subject of Windows generated useless traffic, I have been woking with
RIPE to look at how many queries to k.root-servers.net are for dud TLDs -
the majority of which are caused by Windows using the DNS to look up the
local NT domain name - requests of the form "FOO."
The results are somewhat scary - it seems that around 20% of all queries
are generated by this behaviour. I can't give you any more info at present,
as we are still working on the data - it is literally something I am in the
middle of doing at the moment, but wanted to give a quick heads up to folks
in the light of this thread.
Paul
--
Paul Thornton Office Tel: +44 1733 705000
London Internet Exchange www.linx.net Mobile: +44 467 372205
