Solved

Win 2008 R2 DHCP Servers - BAD_ADDRESS

Posted on 2013-07-01
6
1,124 Views
Last Modified: 2013-07-02
My 2 DC's in another site (since replacement of a firewall) are giving outr all IP's in the scope.

I also noticed that the autoconfig option on the Local VM NICs were also picking up a 169 IP and losing connectivity with the LAN, but also showed its original static IP as an auto configured IP...

So i found a fix (for now) to get the 2x DC's up but disabling DHCP client service and other settings for the local DC's.  Fine, but i still am getting BAD_ADDRESSES in the DHCP servers.

Ideas, before i go back and replace the firewall?

Thanks
0
Comment
Question by:CHI-LTD
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
6 Comments
 
LVL 1

Author Comment

by:CHI-LTD
ID: 39290318
Its having the same affect on my other 2008 R2 servers.  But 2008 is fine...
0
 
LVL 1

Author Comment

by:CHI-LTD
ID: 39290337
0
 
LVL 22

Accepted Solution

by:
eeRoot earned 167 total points
ID: 39292194
Since this happened right after a firewall was replaced, I would suspect the new firewall has its DHCP server enabled.  But you may need to check the whole network for rouge DHCP servers, and enable conflict detection as well.

How to find rogue DHCP servers.
How to enable Conflict Detection

Also, try extending the DHCP lease time to several days, so clients only need to refresh their IP address once a week or so.
0
Easy, flexible multimedia distribution & control

Coming soon!  Ideal for large-scale A/V applications, ATEN's VM3200 Modular Matrix Switch is an all-in-one solution that simplifies video wall integration. Easily customize display layouts to see what you want, how you want it in 4k.

 
LVL 43

Assisted Solution

by:Steve Knight
Steve Knight earned 333 total points
ID: 39292231
if you havent already turn on the conflict detection in properties of dhcp server.

for one client, what does ipconfig /all say it gets its address from?  you say it got an apipa address but had static address before - do you mean alternative address setting?

steve
0
 
LVL 43

Assisted Solution

by:Steve Knight
Steve Knight earned 333 total points
ID: 39292235
also is firewall sending dhcp requests through dhcp helper / relay setting to your other site so that is replying and allocating that subnet.

i presume if both servers are doing dhcp that you have non overlapping ranges, or ratherscope is full range and exclude the other servers ranges?
0
 
LVL 1

Author Closing Comment

by:CHI-LTD
ID: 39292452
Yes, scopes were fine, as was the LAN itself.
Cause was to do with this http://social.technet.microsoft.com/Forums/windowsserver/en-US/07a26080-5b37-410d-85c7-e131cc678efe/vista-and-windows-7-client-not-getting-ip-fom-dhcp-server - at the bottom of th page...
0

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

When speed and performance are vital to revenue, companies must have complete confidence in their cloud environment.
During and after that shift to cloud, one area that still poses a struggle for many organizations is what to do with their department file shares.
Teach the user how to use create log bundles for vCenter Server or ESXi hosts Open vSphere Web Client: Generate vCenter Server and ESXi host log bundle:  Open vCenter Server Appliance Web Management interface and generate log bundle: Open vCenter Se…
This tutorial will walk an individual through the steps necessary to enable the VMware\Hyper-V licensed feature of Backup Exec 2012. In addition, how to add a VMware server and configure a backup job. The first step is to acquire the necessary licen…

707 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