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Ethernet identification

Ethernet identification

(OP)
Has anyone ever seen a tester/detector that can identify if the device on the other end of the link is a pc or a switch? I’ve gotta think that there is some kind of layer 3 info that identifies the link. I know it seems kinda odd but I’ve got a site with some 16 or so switches used to cover over 1500 ft of linear length and they’re hip scotching all around with no labeling. I could tone and locate each link but it will take a long time, a plug in that says hey this is a computer requesting dhcp or even better hey this is a pc (even if it has a static ip) or hey this is an uplink would be useful. Probably doesn’t exist but I thought I’d check, and yes if it is a dhcp network I could plug a laptop in and wait and see if I get an ip on each and every one but if there is something simpler and faster that would be cool.

RE: Ethernet identification

Try using a network viewing tool that should give you the MAC addresses that are requesting the DHCP.
If you have the MAC address then you can do a MAC address lookup to see who is the LAN card manufacturer which will tell you the source of the DHCP request.

RE: Ethernet identification

Best to keep a spread sheet of MAC address's on your network indicating what device it is.

Here is the lookup

________________________________________

Add me to LinkedIN


=----(((((((((()----=
www.curlycord.com
Toronto, CAN

RE: Ethernet identification

Cisco Switches?

turning on CDP will help.

Take Care

Matt
I have always wished that my computer would be as easy to use as my telephone.
My wish has come true. I no longer know how to use my telephone.

RE: Ethernet identification

If you have the cash, Fluke makes a bunch of devices that can do that and a lot more.
Link
They start at $1150 on Amazon.
Link

If you go for the gusto, some models will give you all of the switch info to include the port number you're connected to.

LoPath
Maintain HiPath 4000 V5 & V6, OpenScape Xpert V4, Xpressions, Contact Center

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