Solved

IP configuration issue

Posted on 2014-02-14
8
247 Views
Last Modified: 2014-02-16
All of sudden I start getting Duplicate address on my LAB environment.
When I check the configuration I found what is shown in the screenshot.
Any help will be very much appreciated.

Thanks

Duplicate IP
0
Comment
Question by:jskfan
8 Comments
 
LVL 9

Assisted Solution

by:ffleisma
ffleisma earned 167 total points
ID: 39860853
are you using DHCP on your environment?

169 range is auto assigned by MS if it cannot attain IP address via DHCP.

As I can see on this PC, the DHCP is not enabled.

If you are using static IP address, you might have an IP address duplication.
0
 
LVL 92

Assisted Solution

by:John Hurst
John Hurst earned 83 total points
ID: 39860855
Is someone on your network configured with a Static Address that is conflicting. I have seen that happen.

In my case, a workstation was reporting a duplicate IP and the user reported it, so it was easy to determine the problem area.

Run TCP/IP reset to see if that changes anything.

To manually reset:  Open cmd.exe with Run as Administrator:  netsh int ip reset c:\resetlog.txt

Also, for DNS, ipconfig /flushdns, then net stop dnscache followed by net start dnscache
0
 
LVL 83

Assisted Solution

by:Dave Baldwin
Dave Baldwin earned 83 total points
ID: 39860929
The image shows that DHCP is off so that would be a static IP address.
0
 
LVL 9

Assisted Solution

by:ffleisma
ffleisma earned 167 total points
ID: 39861088
Try changing your static IP configuration to an available IP or enable dhcp if you have dhcp on your environment
0
PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 
LVL 10

Assisted Solution

by:acbxyz
acbxyz earned 83 total points
ID: 39861987
To find the other host you can disconnect the machine with the screenshot and use another machine in the same subnet to ping the ip.
If it still answers, use (win)arp -a / (lin) sudo arp -n to get the mac-address.
0
 
LVL 1

Accepted Solution

by:
vijaydawda earned 84 total points
ID: 39862663
It is an IP address conflict. Just disbale the interface and try to ping to 172.16.27.145. You'll get ping response from another host. To check the host name do ping -a 172.16.27.145.
0
 

Author Closing Comment

by:jskfan
ID: 39862905
Thank you Guys, there was a Duplicate IP address..
0
 
LVL 92

Expert Comment

by:John Hurst
ID: 39863037
@jskfan - Thanks for the update and I was happy to help.
0

Featured Post

New My Cloud Pro Series - organize everything!

With space to keep virtually everything, the My Cloud Pro Series offers your team the network storage to edit, save and share production files from anywhere with an internet connection. Compatible with both Mac and PC, you're able to protect your content regardless of OS.

Question has a verified solution.

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

You might have come across a situation when you have Exchange 2013 server in two different sites (Production and DR). After adding the Database copy in ECP console it displays Database copy status unknown for the DR exchange server. Issue is strange…
A safe way to clean winsxs folder from your windows server 2008 R2 editions
This tutorial will show how to push an installation of Backup Exec to an additional server in both 2012 and 2014 versions of the software. Click on the Backup Exec button in the upper left corner. From here, select Installation and Licensing, then I…
This tutorial will walk an individual through setting the global and backup job media overwrite and protection periods in Backup Exec 2012. Log onto the Backup Exec Central Administration Server. Examine the services. If all or most of them are stop…

932 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

Need Help in Real-Time?

Connect with top rated Experts

8 Experts available now in Live!

Get 1:1 Help Now