Solved

DHCP - when i deactivate a scope i get a blue exclamation mark on the server IPv4 icon

Posted on 2013-12-11
5
6,111 Views
Last Modified: 2013-12-13
Hi.

I have a problem on a 2012 server running our DHCP services. One funny thing i notice is when i deactivate a IPv4 scope i created, the server IPv4 icon changes from a green V, to a blue exclamation mark icon. That would usually mean full scopes, and so on.
The problem here is that none of the scopes i have are even close to being full...
The total statistics for the server is:
Total adresses: 662
In Use: 216 (32%)
Avaliable: 446 (67%)

I can verify that the leases in each of my 5 scopes are consistant with the statistics, there are many avaliable addresses...

And yes, the DHCP service are authorized with a user with enough privileges. If my 5 scopes are activated, the green V is present. It's only when i deactivate a singel scope i see this blue exclamation mark..

Can this be a new "feature" from Microsoft, saying that "you do have a scope present with x number of avaliable adresses. But since you deactivate it, none of theese addresses can be used..".. :) Sounds really silly, but it kinda seems that way...
0
Comment
Question by:fmtrtga
  • 2
  • 2
5 Comments
 
LVL 14

Expert Comment

by:Ram Balachandran
Comment Utility
The blue icon represent a DHCP server alert. No addresses are available from server scopes because the maximum (100 percent) of the addresses allocated for use are currently leased. This represents a failure of the DHCP server on the network because it is not able to lease or service clients.

Refer  this to identify in which category your server belongs to - http://technet.microsoft.com/en-us/library/gg722802(v=ws.10).aspx


How many scope you have currently ? You need to have atleast one scope for leasing IP address for the client machines.
0
 

Author Comment

by:fmtrtga
Comment Utility
I know that the blue icon represents the server alert you mention, and the following information.

In regards to the scopes, it is still 5 scopes as i mentioned in the original post. An example on the status of thees scopes are as follows:
Address pool for distribution: 10.10.1.1 - 10.10.1.254
Address pool for exclutions: 10.10.1.1 - 10.10.1.10
Active leases for this scope, is from *.11 to *.145. Ergo, still avaliable addresses in the range *.146 to *.254...

We don't have any problems issuing new leases to clients, as i mentioned in the original post we have approx 6% avaliable addresses in total. None of the 5 scopes are close to being full, no one is over 50%.

My issue is still that all is green and ok if every scope is active... It is only when i make 1 of my scopes deactivated, the blue icon issue occurs.... Pretty freaking strange if you ask me...
0
 
LVL 14

Expert Comment

by:Ram Balachandran
Comment Utility
Have you tried restarting DHCP Services ?
0
 

Author Comment

by:fmtrtga
Comment Utility
Yes.

And it was a wrong posting in my last post, its not 6% avaliable addresses, its approx 67%.... So should not be an issue at all..
0
 
LVL 24

Accepted Solution

by:
lionelmm earned 400 total points
Comment Utility
When you deactivate the scope that is the reason--deactivating is akin to removing it without having to re-create it when you re-activate it.
1

Featured Post

Top 6 Sources for Identifying Threat Actor TTPs

Understanding your enemy is essential. These six sources will help you identify the most popular threat actor tactics, techniques, and procedures (TTPs).

Join & Write a Comment

Every now and then, Microsoft does something that totally impresses me. It doesn't happen often, but in this case I must say I am thoroughly impressed with Windows Server Backup. One of the long time issues with Windows Backup has been the ability t…
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…
This tutorial will walk an individual through the steps necessary to join and promote the first Windows Server 2012 domain controller into an Active Directory environment running on Windows Server 2008. Determine the location of the FSMO roles by lo…
This tutorial will walk an individual through the process of configuring basic necessities in order to use the 2010 version of Data Protection Manager. These include storage, agents, and protection jobs. Launch Data Protection Manager from the deskt…

771 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

10 Experts available now in Live!

Get 1:1 Help Now