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On Tuesday 14 March 2006 11:08 am, Timothy A. Holmes wrote: |
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> Hans -- Thank you, I realize that I can make it blink with network |
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> traffic, the problem is that basically all the ports on the switches |
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> have traffic running constantly on them, so I need to find a way to make |
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> it distinctive enough so it can be picked out from the rest of the |
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> noise. |
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> |
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> I will try to run down the tools that you mentioned and see if any of |
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> them provide a solution -- thank you |
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> |
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> TIM |
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> |
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> |
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> Timothy A. Holmes |
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> IT Manager / Network Admin / Web Master / Computer Teacher |
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> |
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> Medina Christian Academy |
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> A Higher Standard... |
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> |
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> Jeremiah 33:3 |
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> Jeremiah 29:11 |
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> Esther 4:14 |
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> |
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> > -----Original Message----- |
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> > From: Hans-Werner Hilse [mailto:hilse@×××.de] |
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> > Sent: Tuesday, March 14, 2006 12:01 PM |
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> > To: gentoo-user@l.g.o |
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> > Subject: Re: [gentoo-user] Port Tracer Program Needed |
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> > |
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> > Hi, |
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> > |
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> > On Tue, 14 Mar 2006 10:03:24 -0500 "Timothy A. Holmes" |
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> > |
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> > <tholmes@×××××××××.net> wrote: |
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> > > I am getting ready to start a project here in the building to map |
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> |
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> the |
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> |
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> > > physical infrastructure of our network (its been assembled kinda |
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> |
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> willy |
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> |
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> > > nilly over the last 8 years or so). I am looking for a program to |
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> |
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> run |
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> |
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> > > on my laptop that I can plug into a wall plate and it will cause the |
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> > > port activity lights on the switch to blink distinctly so that I can |
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> > > begin tracing plugs to ports. Due to budgetary constraints, open |
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> > > source / freeware is very very preferable. |
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> > |
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> > Not sure about "distinctly" (that will certainly depend on the |
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> |
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> switch's |
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> |
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> > electronic and programmatic design), but - tada - you can usually |
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> |
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> cause |
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> |
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> > the traffic light on the switch to blink with network traffic ;-) |
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> > |
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> > So broadcasting some UDP packages out into the wild should be |
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> > sufficient. Use e.g. netcat. OTOH, you might want to play with ethtool |
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> > and switch connection rates for short intervals. Usually switches have |
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> > a light indicator for the speed, too, so that should be easier to |
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> > distinct on a busy switch. Toggle this in a shell loop with a few |
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> > "sleep"s inserted... |
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> > |
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> > -hwh |
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> > -- |
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|
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Netwox (+ optionally netwag) has some neat tools. One that I have found handy |
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is the audible ping. Whenever it receives a successful ping response it beeps |
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your pc speaker. It may or may not have any benefit for you in this secenario |
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but it can be useful at times when you are muddling around and can't see your |
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screen, you can just listen for the "beep, beep, beep" then disconnect the |
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proper cable and it goes silent. Or in the reverse, plug in the right cable |
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and you start to hear the "beep, beep, beep". |
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|
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Netwox has a ton of other neat tools, servers and clients. |
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|
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If your switches are manageable you can probably look up your switches cam |
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table (MAC address to eth port mapping) then look at your clients ARP cache |
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after pinging your broadcast address on each network. |
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|
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Good luck on your network mapping. |
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-- |
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