Link to home
Start Free TrialLog in
Avatar of Timothy Duke
Timothy Duke

asked on

How do I determine past ip addresses of multiple computers logged onto my network?

My landlords network was recently used to download/view copyrighted material, more than once. Cox cable has decided to slap a $250,000 fine on him. In a panic he shutdown the Wi-Fi for the entire apartment building. He has asked me to help him determine the culprit as a favor. I notified him that using cmd, anyone can use ipconfig /release ipconfig /renew to change their ip address. So that made me think, how do you determine a computer's past ip address? I understand that the modem can determine logged ip addresses if logging is enabled, but I don't think it is. Cox has provided the ip address of the computer in question, and I can gain access to my roommates devices, but I still need to know how to check the past ip addresses, especially if it happens to renew as soon as I log on.
Using cmd, I typed (ipconfig /allcompartments /all) to determine the current, ip address, lease date, expiration date, but nothing regarding any past ip addresses.   Can anybody help me solve this so I can get my Wi-Fi turned back on?
SOLUTION
Avatar of arnold
arnold
Flag of United States of America image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
Avatar of Dr. Klahn
Dr. Klahn

He has asked me to help him determine the culprit as a favor.

imo:  Don't get involved in this.  You don't want to be dragged into court by either side, lose days of time waiting to testify without pay, and then be humiliated by either side's lawyer as an inexpert expert who should not have been involved in the first place.

Cut it short while you still can.  "I don't want to get involved in a legal battle" is a good and justifiable standpoint.
ASKER CERTIFIED SOLUTION
Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
My first impression was that this is a spam email for the following reasons:

a) Cox as the isp doesn't have the authority to file a fine.  Only a Court can.
b) The copyright holder would be the claimant not the ISP
c) This is a civil matter and you must have your day in court.
Avatar of Timothy Duke

ASKER

Wow, wasn't expecting so much negativity from the community... I may have been misinformed by my landlord when he said that cox was the one issuing the fine, but a fine is being imposed all the same. And going as far as to label this as a spam email? Really? Well it's all water under the bridge now. I've been told by you guys that it's impossible so I'll take that at face value and just bow out.