Re: NBNS (Netbios) storm, how to prevent?
From: Phillip Windell (_at_.)
Date: 02/25/05
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Date: Fri, 25 Feb 2005 16:19:59 -0600
I doubt he is around anymore to see the post. It was from the Linux boxes.
-- Phillip Windell [MCP, MVP, CCNA] www.wandtv.com "Brian Whiting" <nospam@deny.com> wrote in message news:OxdDJd4GFHA.2924@TK2MSFTNGP15.phx.gbl... > I just saw this post so I'm late to this discussion. You say that when you > get the nbns broadcasts your Windows network is greatly affected? Can you > capture a couple of the packets in ethereal and paste them into a reply so I > can look at them? What you describe, a general network slowdown might well > come from broadcast packets if your network shares a common layer 2 > broadcast domain, which it sounds like it does. Are the packets coming > specifically from the Linux box, or one of your XP clients that uses the > Samba server? > > > <Andy> wrote in message news:uJ3Ib2VCFHA.2032@tk2msftngp13.phx.gbl... > > > > "Phillip Windell" <@.> wrote in message > > news:##NyGtTCFHA.1836@tk2msftngp13.phx.gbl... > >> <Andy> wrote in message news:eYmfpGKCFHA.1400@TK2MSFTNGP11.phx.gbl... > >> > Fix the Linux box! yeah! well they do fix it but then the same problem > >> > occurs again (but usually a different host name) and I am not qualified > > to > >> > work on Linux. > >> > >> I understnad the feeling,...I'm in the same position. But that does not > >> change reality,...the source of the problem is the Linux boxes,...that is > >> where the problem exists and is where it is to be solved. You cannot > >> solve > >> the problem where it doesn't exits. > >> > >> It doesn't matter how strange the Linux boxes are,...they can't use what > >> they don't have. If they don't have the Name Server (NBNS) set in their > >> configuration they they can not use such an IP# in a "directed" NBNS > > Query, > >> and you no longer have a problem. It isn't that big a mystery. The > >> peole > >> that built or setup these things know *exactly* where that setting is > >> because they put it there,...they can remove it as well. > >> > >> You could also post the whole question in a Newsgroup devoted to Linux > >> and > >> have an answer in about 20 minutes. > >> > >> > Spent an hour this morning trying out VLAN on a couple of spare ports > >> > (static), easy to setup and it works. If we could configure routing > >> between > >> > VLANs would this be an acceptable way to segment the network? I will > > have > >> a > >> > go at setting up VLAN IP routing tomorrow and see where that takes us. > >> > >> You are pretty much wasting your time if you are doing that to solve this > >> issue. The most you will accomplish is keeping the NBNS querys in the > > Music > >> Room's subnet but that won't be helping the issue in the Music Room and > > they > >> will still be complaining. > >> > >> However splitting up the sytems in to a couple of subnets is a good thing > >> over all. > >> > >> -- > >> > >> Phillip Windell [MCP, MVP, CCNA] > >> www.wandtv.com > >> > >> > > > > Phillip, > > > > Ah but what happens in the Music Room isn't my problem! So would it be OK > > to > > use VLANs to reduce the number of hosts per subnet? Seems easy and cheap. > > Almost too good to be true! But is it? > > > > Andy. > > > > > >
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