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Users IP address on the network

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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Shark Attack
Asked:
Shark Attack
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3 Solutions
 
CoSmismgrCommented:
Look under DHCP leases
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Shark AttackAuthor Commented:
nothing there just a MAC address.
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CoSmismgrCommented:
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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CoSmismgrCommented:
If that doesnt work, try
nbtstat -a <IP address>

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Shark AttackAuthor Commented:
i found another way

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

thanks
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Shark AttackAuthor Commented:
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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Shark AttackAuthor Commented:
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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CoSmismgrCommented:
You can block the MAC address, but this would need to be done from the router on that network.
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Shark AttackAuthor Commented:
I am on that router
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CoSmismgrCommented:
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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CoSmismgrCommented:
If you need detailed instructions just supply us the model router
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Shark AttackAuthor Commented:
2811 v12.4
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CoSmismgrCommented:
Router# configure terminal

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

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CoSmismgrCommented:
If you are using the GUI, I'm sorry but I only know CLI for Cisco
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Shark AttackAuthor Commented:
I'm using CLI. Thanks
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