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Users IP address on the network

Posted on 2015-01-29
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Last Modified: 2015-01-29
I have ip flow top talkers configured on the router. Is there a way I can tell at least the computer name of the user that is using the IP address? Is there a way I can trace that while being on the router?
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Question by:Shark Attack
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15 Comments
 
LVL 5

Expert Comment

by:CoSmismgr
ID: 40578566
Look under DHCP leases
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LVL 3

Author Comment

by:Shark Attack
ID: 40578586
nothing there just a MAC address.
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LVL 5

Expert Comment

by:CoSmismgr
ID: 40578591
Go to a computer connected to the network and from Command prompt run nslookup <IP address> and it should return the computer name associated with that IP address.
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LVL 5

Expert Comment

by:CoSmismgr
ID: 40578596
If that doesnt work, try
nbtstat -a <IP address>

Open in new window

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LVL 3

Author Comment

by:Shark Attack
ID: 40578603
i found another way

wmic.exe /node:########
# = IP

thanks
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LVL 3

Author Comment

by:Shark Attack
ID: 40578610
I couldn't do the above 2 since I am not on their subnet. It's a router at another location. thanks
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LVL 3

Author Comment

by:Shark Attack
ID: 40578612
one last question for you, is there a way I can bump an IP off the network? user is using an IP and it's over utilizing the connection.
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LVL 5

Assisted Solution

by:CoSmismgr
CoSmismgr earned 2000 total points
ID: 40578617
You can block the MAC address, but this would need to be done from the router on that network.
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LVL 3

Author Comment

by:Shark Attack
ID: 40578622
I am on that router
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LVL 5

Expert Comment

by:CoSmismgr
ID: 40578625
How to do it depends on the router, but look for port security or MAC filtering option. From there, you can create a rule to not allow traffic to the specified MAC address.
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LVL 5

Expert Comment

by:CoSmismgr
ID: 40578628
If you need detailed instructions just supply us the model router
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LVL 3

Author Comment

by:Shark Attack
ID: 40578633
2811 v12.4
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LVL 5

Assisted Solution

by:CoSmismgr
CoSmismgr earned 2000 total points
ID: 40578642
Router# configure terminal

 Router(config)# mac address-table static <MAC_Address> vlan <VLAN #> drop 

Open in new window

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LVL 5

Accepted Solution

by:
CoSmismgr earned 2000 total points
ID: 40578647
If you are using the GUI, I'm sorry but I only know CLI for Cisco
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LVL 3

Author Comment

by:Shark Attack
ID: 40578648
I'm using CLI. Thanks
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