Identifying cat5 cables on router question

Hi.

I've gotta diagram someone's network.

They are in a three story building.

The rackmounted routers are on the second floor with computers on all three
floors.

Probably about 40 computers.

I've gotta identify which cat5 goes to which computer. Whoever set this up
never labled the cables.

What would be the best way to do this other than unconnecting one cable from
the router and running around the whole building to find out which computer
isn't on the network anymore?

Thanks for any suggestions.

Bryce.

On Mon, 3 Jan 2005 11:29:40 -0800, "Bryce"
<(E-Mail Removed)> wrote:

>I've gotta identify which cat5 goes to which computer. Whoever set this up
>never labled the cables.
>
>What would be the best way to do this other than unconnecting one cable from
>the router and running around the whole building to find out which computer
>isn't on the network anymore?

A "tone and probe" tool. You connect the client end of the cable into a
small device, then use the probe at the router end to tell you which cable
the device is on (it emits a tone when you come near the proper cable.)

Something like this: http://www.trianglecables.com/515566.html


--
You don't have to buy from anyone. You don't have to work at any
particular job. You don't have to participate in any given relationship.
You can choose.

- Harry Browne

Depending on the router / switch, you should be able to
use the software console to resolve tcp/ip addresses to
each port then use nbtstat -A against the tcp/ip address
to get the computername..

"Bryce" <(E-Mail Removed)> wrote in message news
> Hi.
>
> I've gotta diagram someone's network.
>
> They are in a three story building.
>
> The rackmounted routers are on the second floor with computers on all
three
> floors.
>
> Probably about 40 computers.
>
> I've gotta identify which cat5 goes to which computer. Whoever set
this up
> never labled the cables.
>
> What would be the best way to do this other than unconnecting one
cable from
> the router and running around the whole building to find out which
computer
> isn't on the network anymore?

A phone technicians trick but involves running up and down
three flights multiple times..

"CyberDroog" <(E-Mail Removed)> wrote in message news:
> On Mon, 3 Jan 2005 11:29:40 -0800, "Bryce"
> <(E-Mail Removed)> wrote:
>
> >I've gotta identify which cat5 goes to which computer. Whoever set
this up
> >never labled the cables.
> >
> >What would be the best way to do this other than unconnecting one
cable from
> >the router and running around the whole building to find out which
computer
> >isn't on the network anymore?
>
> A "tone and probe" tool. You connect the client end of the cable into
a
> small device, then use the probe at the router end to tell you which
cable
> the device is on (it emits a tone when you come near the proper
cable.)
>
> Something like this: http://www.trianglecables.com/515566.html
>
>
> --
> You don't have to buy from anyone. You don't have to work at any
> particular job. You don't have to participate in any given
relationship.
> You can choose.
>
> - Harry Browne
>

On Mon, 3 Jan 2005 15:56:10 -0500, "Michael Giorgio - MS MVP"
<(E-Mail Removed)> wrote:

>A phone technicians trick but involves running up and down
>three flights multiple times..

So use a network cabling tool that detects multiple cables.
Everything from Lanmeters to stand alone cable tracing equipment has
numbered end plugs available now.

Though you should be able to narrow it down a little by where the
cable runs.

Jeff


>"CyberDroog" <(E-Mail Removed)> wrote in message news:
>> On Mon, 3 Jan 2005 11:29:40 -0800, "Bryce"
>> <(E-Mail Removed)> wrote:
>>
>> >I've gotta identify which cat5 goes to which computer. Whoever set
>this up
>> >never labled the cables.
>> >
>> >What would be the best way to do this other than unconnecting one
>cable from
>> >the router and running around the whole building to find out which
>computer
>> >isn't on the network anymore?
>>
>> A "tone and probe" tool. You connect the client end of the cable into
>a
>> small device, then use the probe at the router end to tell you which
>cable
>> the device is on (it emits a tone when you come near the proper
>cable.)
>>
>> Something like this: http://www.trianglecables.com/515566.html
>>
>>
>> --
>> You don't have to buy from anyone. You don't have to work at any
>> particular job. You don't have to participate in any given
>relationship.
>> You can choose.
>>
>> - Harry Browne
>>
>

how about setting an IP scanner up (gfi languard comes to mind but there may
be other choices) and have it run through the IP range, disconnect a cable
and run it again, label the one that doesn't respond and then use that IP to
determine the pc name and then label accordingly. Depending on DHCP usage
and lease duration, the IP should stay put long enough to conduct the test.

"Bryce" <(E-Mail Removed)> wrote in message
news:%(E-Mail Removed)...
> Hi.
>
> I've gotta diagram someone's network.
>
> They are in a three story building.
>
> The rackmounted routers are on the second floor with computers on all
> three
> floors.
>
> Probably about 40 computers.
>
> I've gotta identify which cat5 goes to which computer. Whoever set this up
> never labled the cables.
>
> What would be the best way to do this other than unconnecting one cable
> from
> the router and running around the whole building to find out which
> computer
> isn't on the network anymore?
>
> Thanks for any suggestions.
>
> Bryce.
>
>

More than one way to skin the cat so to speak. <g>

"Jeff Cochran" <(E-Mail Removed)> wrote in message news:
> On Mon, 3 Jan 2005 15:56:10 -0500, "Michael Giorgio - MS MVP"
> <(E-Mail Removed)> wrote:
>
> >A phone technicians trick but involves running up and down
> >three flights multiple times..
>
> So use a network cabling tool that detects multiple cables.
> Everything from Lanmeters to stand alone cable tracing equipment has
> numbered end plugs available now.
>
> Though you should be able to narrow it down a little by where the
> cable runs.

Michael Giorgio - MS MVP wrote:
> A phone technicians trick but involves running up and down
> three flights multiple times..

Not if you convince someone else to help you, and use cell phones/walkie
talkies!

>
> "CyberDroog" <(E-Mail Removed)> wrote in message news:
>> On Mon, 3 Jan 2005 11:29:40 -0800, "Bryce"
>> <(E-Mail Removed)> wrote:
>>
>>> I've gotta identify which cat5 goes to which computer. Whoever set
>>> this up never labled the cables.
>>>
>>> What would be the best way to do this other than unconnecting one
>>> cable from the router and running around the whole building to find
>>> out which computer isn't on the network anymore?
>>
>> A "tone and probe" tool. You connect the client end of the cable
>> into a small device, then use the probe at the router end to tell
>> you which cable the device is on (it emits a tone when you come near
>> the proper cable.)
>>
>> Something like this: http://www.trianglecables.com/515566.html
>>
>>
>> --
>> You don't have to buy from anyone. You don't have to work at any
>> particular job. You don't have to participate in any given
>> relationship. You can choose.
>>
>> - Harry Browne

Thank you everyone. I will try these things.


".:mmac:." <lost@sea> wrote in message
news:uxT%(E-Mail Removed)...
> how about setting an IP scanner up (gfi languard comes to mind but there
may
> be other choices) and have it run through the IP range, disconnect a cable
> and run it again, label the one that doesn't respond and then use that IP
to
> determine the pc name and then label accordingly. Depending on DHCP usage
> and lease duration, the IP should stay put long enough to conduct the
test.
>
> "Bryce" <(E-Mail Removed)> wrote in message
> news:%(E-Mail Removed)...
> > Hi.
> >
> > I've gotta diagram someone's network.
> >
> > They are in a three story building.
> >
> > The rackmounted routers are on the second floor with computers on all
> > three
> > floors.
> >
> > Probably about 40 computers.
> >
> > I've gotta identify which cat5 goes to which computer. Whoever set this
up
> > never labled the cables.
> >
> > What would be the best way to do this other than unconnecting one cable
> > from
> > the router and running around the whole building to find out which
> > computer
> > isn't on the network anymore?
> >
> > Thanks for any suggestions.
> >
> > Bryce.
> >
> >
>
>

Agreed but there are so many port scanning tools available
I would forget about the manual process.

"Lanwench [MVP - Exchange]"
<(E-Mail Removed) ahoo.com> wrote in
message news:
> Michael Giorgio - MS MVP wrote:
> > A phone technicians trick but involves running up and down
> > three flights multiple times..
>
> Not if you convince someone else to help you, and use cell
phones/walkie
> talkies!