agriffis
Registered: 07/12/06
Posts: 14
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Reply with quote | #1 |
Hello,
I've been tasked with finding some devices on our network. Is there anyway to use Observer to find 5 port hub or switches on your network that don't have ip addresses assigned to them? Can you find them by MAC address?
Thanks for any help with this.
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BillProctor
Moderator
Registered: 03/02/06
Posts: 289
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Reply with quote | #2 |
We would not be able to tell you which device a station is connected to unless that station was a managed switch that has SNMP enabled. Observer can in that instance be used to find which device is connected to which switch by using the Switch Station Locator. If the device is connected to a hub, then to an unmanaged switch, Observer would not be able to locate the device.
Bill
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agriffis
Registered: 07/12/06
Posts: 14
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Reply with quote | #3 |
All these little hubs/switches are connected to HP Procurve switches, which are managed.
So would this work then?
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BillProctor
Moderator
Registered: 03/02/06
Posts: 289
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Reply with quote | #4 |
Yes, if you poll the HP switch, you would see which port the devices are connected to. |
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agriffis
Registered: 07/12/06
Posts: 14
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Reply with quote | #5 |
What if the type of device is unknown, like a 5 port D-Link, Linksys, etc., and you use the Switch Station Locator on a managed switch. How do you determine if it's a little switch or access point? or anything that shouldn't be plugged into your network? By it's mac address? |
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BillProctor
Moderator
Registered: 03/02/06
Posts: 289
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Reply with quote | #6 |
If you are worried about people bringing in devices from home and plugging them into your network, you have a couple of solutions, from your managed switch limit the number of mac addresses that an individual port can support. This will make it so if someone brought in a hub and put 2 devices on it, the switch would not allow it.
THe 2nd from a Wireless side would be to use a wireless card with Observer to detect what access points you have on your network. you can then use the stength meters to narrow down to areas where you see an access point that should not be there.
Bill
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agriffis
Registered: 07/12/06
Posts: 14
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Reply with quote | #7 |
That is great information and a concern, but it's not the scope of what I needing to get done. I know I have some of these small switches on the network, but I just don't know what make they are or where they are. And I'm in campus like environment going over multiple buildings. |
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BillProctor
Moderator
Registered: 03/02/06
Posts: 289
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Reply with quote | #8 |
If they are managed, then you can find out where they are. If they are not managed, then you would need to locate on your HP Switch, which ports have multiple MAC associated with them and go investigate each one. There is no other way that I am aware of. |
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