Solved

How to kick a DHCP user form Mountain Lion Server App?

Posted on 2014-07-30
6
374 Views
Last Modified: 2014-08-03
I have a ghost dynamic DHCP client on my Mountain LIon server app DHCP which conflicts with the actual server IP. How do I kick this DHCP user? I am trying to create a static IP mapped to the server so this doesn't happen again, but it will not let me because the conflicting static IP is persisting.
0
Comment
Question by:jwleys
  • 4
  • 2
6 Comments
 

Author Comment

by:jwleys
ID: 40230942
How do I kick dynamic DHCP user + os x mountain lion server app DHCP.

Persisting after, restarting router, resetting PRAM and restarting server. I even powered off the server and turned it back on.

I turned off all WiFi access points, but still persisting GHOST session.
0
 

Author Comment

by:jwleys
ID: 40230969
Or is there a way to renew DHCP leases of all clients from the Mountain Lion DHCP Server App?
0
 
LVL 32

Expert Comment

by:nappy_d
ID: 40232165
Are you saying there is a computer in your network that has the same IP of your DHCP server?

If this is the case, it means the machine has a static IP or you have configured you DHCP scope whic may include your server's IP address.
0
Efficient way to get backups off site to Azure

This user guide provides instructions on how to deploy and configure both a StoneFly Scale Out NAS Enterprise Cloud Drive virtual machine and Veeam Cloud Connect in the Microsoft Azure Cloud.

 

Author Comment

by:jwleys
ID: 40232767
I have attached a screen shot; not a computer, an Android phone, I have since disconnected all WiFi access points to the network and the DHCP client list still shows the Android phone with conflicting IP address 192.168.1.56.

I think the reason that this happened was that the server was manually assigned an IP address that was not static assigned in DHCP in the Server App.

The issue I now have is that I can setup a static address for the server in DHCP but when I restart the server the static entry for the server is not retained. It seems that the DHCP lease has not expired for the Android device. Which is why I refer to it as a ghost session. Is there a way to force DHCP lease for all clients to expire or kick individual devices from the server?
Screen-Shot-2014-08-01-at-7.45.24-am.png
0
 
LVL 32

Accepted Solution

by:
nappy_d earned 500 total points
ID: 40234411
Please try the following:

1.

disconnect the Ethernet cable from your server

2.

configure the server to have the static IP address

3.

adjust your dhcp scope. As am example, if you want the server to have the ip 192.168.1.10, adjust your dhcp server

4.

scope to be 192.168.1.50-150. This will make all machines get an ip and not use your server's IP.

5.

it is probably a good idea to also reboot all computers to force them to request a new IP address.
0
 

Author Closing Comment

by:jwleys
ID: 40237846
Thanks very good solution, solved my problem.
0

Featured Post

Efficient way to get backups off site to Azure

This user guide provides instructions on how to deploy and configure both a StoneFly Scale Out NAS Enterprise Cloud Drive virtual machine and Veeam Cloud Connect in the Microsoft Azure Cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
DHCP restore question Server 2003 to 2012 3 48
Mac Book Pro - Mac Mail - Yahoo Mail 5 61
Mac OS: Need a magnifying glass as an icon 7 75
Need a text scroller for a Mac 2 49
Ever wondered why you had to use DHCP options (dhcp opt 60, 66 or 67) in order to use PXE? Well, you don't!
Configuring network clients can be a chore, especially if there are a large number of them or a lot of itinerant users.  DHCP dynamically manages this process, much to the relief of users and administrators alike!
This video shows how to use Hyena, from SystemTools Software, to bulk import 100 user accounts from an external text file. View in 1080p for best video quality.
Nobody understands Phishing better than an anti-spam company. That’s why we are providing Phishing Awareness Training to our customers. According to a report by Verizon, only 3% of targeted users report malicious emails to management. With compan…

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question