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Find physical location of network device

By Philando ·
I have a device that shows up on my network with the name "AP4". I can see the ip and mac address on the dhcp server. I am running a win2k AD domain. I am pretty sure its a Cisco Aironet Access point (thats their default name convention). I would appreciate any suggestions on how to physically find where the device is plugged in on the network besides going throughtout the whole organization cube by cube. Thanx

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Find physical location of network device

by Joey Indolos In reply to Find physical location of ...

Unfortunately, because of the excellent mapping between physical and logical attributes in networked devices, there's really no way to tell where this device is physically, as far as I know. However, if this is a Cisco Aironet Access point, it behooves you to urgently locate this device. Since it obviously isn't in the list of your location's official devices, it apparently is one of those rogue wireless points that we have been warned about time and again by the regular Tech Republic e-newsletters. You might want to search the Tech Republic archives for articles on rogue wireless sites. Another useful site to check out is www.airdefense. net.

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Find physical location of network device

by sgt_shultz In reply to Find physical location of ...

well, you could....just....ask.
time for a written policy?
if they left the name as default, they probably left all the usernames and passwords and stuff default also. you mean you can't figure out how to browse or telnet into it and disable it?
or, you could 'war drive' for it with a wireless equipped laptop. be a nice publicity stunt...maybe you want to quietly check your bosses offices first...if you think this thru, it is a wonderful opportunity for you. how would a hacker exploit this hole? can you exploit it first, in a harmless but dramatic way that would point up the security hazard...

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Find physical location of network device

by sgt_shultz In reply to Find physical location of ...

this is also an opportunity (forgive me for climbing up on the soapbox) for NOT be a loud mouthed indignant security expert, but instead is your great chance to show what a discreet, smart IT sleuth you are...can you make your boss look good somehowwith this? find out what's going on, be very clear on security breaches involved, steps necessary to fix, let your boss be the one who brings it to corporate spot light...?

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Find physical location of network device

by TheChas In reply to Find physical location of ...

While there are no tools that I know of to physically locate a network device, you can narrow the physical search by finding out where it is actually connected.

This TR article and discussion has links to a number of network discovery tools that should help narrow your search.

http://tinyurl.com/ijxs

Chas

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Find physical location of network device

by Joseph Moore In reply to Find physical location of ...

Like everyone else is saying, there is no magical tool you can run that will make a remote device beep or flash or jump up and down on its plastic feet! If you need to physically find a device on your network, and you don't know what can communicateon your network, then it is very difficult.
Yes, you can start tracing cables from your switches, and hope to hit on it.
One suggestion is you should check your switches, look at their ARP caches (SH ARP) to see which port the MAC of the device isconnected to. You can do this on a Cisco switch. I forget how to right now, but I have read about doing this.
Anyway, if you can find the specific switch port the device is plugged into, then just trace that cable, and there you go.

hope this helps

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by JIM-H In reply to Find physical location of ...

If you do not know who is connecting to your Wireless network start a MAC Based filtering scheme. I have seen Wireless LANs compromised because someone can sit rigth outside and be online. Imagine if they made there wireless PC a DHCP/DNS Server. :) They could control all your DHCP users that get an IP from him instead of you...first come first server you know. At least enable some sort of WEB encryption so that anyone using Wireless must see you first.

Put a sign on the front door that reads. "Wireless Security in place xx/xx/xxxx please See John Doe for details to continue using. You MUST provide your MAC address to get online in this wireless network?

I have had to go through this before. Looks like there were some great responses up top but I could not resist adding.

Later,
Jim

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by bsj_molena In reply to Find physical location of ...

This is simmiliar to an answer already submitted, but I hope it helps. I work for a school system, and we use DHCP. Each school has it's on range of IP address, each network segment in each school has it's own ranges of IP address. Look on the DHCP server and see what segment the IP address belongs. This will narrow it down. Of course this depends on how large your network is, and if it even has more than one segment. Hope this helps.

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