Re: NBNS (Netbios) storm, how to prevent?

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From: Doug Sherman [MVP] (dsherman_at_nospam.tampabay.rr.com)
Date: 01/28/05 

Date: Thu, 27 Jan 2005 19:38:08 -0500

Make sure the problem client is not configured to use a nonexistent or
erroneous WINS server.

If the query is for a name that exists on the network, create an lmhosts
file on the problem client which maps the correct IP address to the name.
If the name does not exist, map the name to 127.0.0.1.

NBNS queries are directed packets, so they would be forwarded by a
multihomed NT4.0 machine with IP forwarding enabled.

Doug Sherman
MCSE Win2k/NT4.0, MCSA, MCP+I, MVP

<Andy> wrote in message news:up8$hUMBFHA.208@TK2MSFTNGP12.phx.gbl...
> Hi,
> I am a administrator on a small 650 station server 2003 / Windows XP pro
> network. We use active directory, DNS and Wins. Our Music department has a
> seperate small 30 station Windows XP pro network hosted by Red Hat Linux.
I
> am not the admin for the Linux network.
>
> The Linux network is connected to my network to allow music staff to
access
> the Internet, Intranet and email which are hosted on my servers.
>
> Our network has recently suffered intermittent periods of down time which
> has caused our students (for we are a school) significant difficulty in
> using our PCs. It has also caused a great deal of frustration.
>
> Anyhow on hearing about Ethereal I installed and started using it. Bingo,
> whenever the pings time out on my network I see hundreds of NBNS for the
> same name from a single client on the Music network.
>
> When I disconnect the Music network the problem goes away but then they
> complain about their loss of email, Intranet and Internet.
>
> I don't know enough about Linux to help the admin of the Linux system but
I
> do know that I cannot afford to have this occur again.
>
> So I was wondering if I could use an old NT 4 box with two NIC's as a
router
> or is there a better approach? Would NBNS requests be routed by NT 4
acting
> as a router?
>
> Any help appreciated.
>
> Andy.
>
>

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