?
Solved

DHCP Server Scope running out if IP addresses

Posted on 2010-08-23
11
Medium Priority
?
352 Views
Last Modified: 2012-05-10
Hello Everyone,

I am running out if ip address on my dhcp server.  I am trying to determine the best way to resolve this issue.  Should I create another scope with a different set of ip addresses or should I delete this scope and recreate it with the new range of ip addresses.  Can anyone help?

Thanks,

Bill
0
Comment
Question by:bjennings
[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
  • 3
  • 2
  • +3
11 Comments
 
LVL 8

Expert Comment

by:jimmyray7
ID: 33506357
I would recreate it with one IP range just for ease of management, but technically another scope would work as well.
0
 
LVL 20

Expert Comment

by:woolnoir
ID: 33506365
Its up to you, either is a solution. I would tend to create a NEW scope with a bigger range of addresses as its easier to manage that multiple scopes.

At work we've had a similar problem but we tend to work with /22 address ranges split between 2 servers with a /23 range on each i.e

10.100.0.1 -> 10.100.3.254 - having half the allocation on each server.

Not sure what range you have, but use this as an opportunity to consider future growth and maybe migrate whatever you have to a bigger range. I'd go with deleting and recreating with a large available set.
0
 

Expert Comment

by:mxgong
ID: 33506860
You can try to change the lease time in DHCP to 8 hours.
0
10 Questions to Ask when Buying Backup Software

Choosing the right backup solution for your organization can be a daunting task. To make the selection process easier, ask solution providers these 10 key questions.

 
LVL 2

Expert Comment

by:DariusIII
ID: 33508452
I agree with jimmyray7 and woolnoir, the best way is to recreate a new, bigger scope of IP addresses, although creating a new, additional scope is also a possibility, depending on how many workstations you have currently and planned expansion of the network.
0
 
LVL 39

Expert Comment

by:Krzysztof Pytko
ID: 33508526
If you want to change network mask in scope, you have to delete it and create once again. So, I would suggest to create new scope and configure New Superscope by selecting both of them. Then you don't have to reconfiguring your existing scope or delete it and create from the beginning.
0
 
LVL 20

Expert Comment

by:woolnoir
ID: 33508616
Isiek has a point too. Its about personal preference both methods have their merits.
0
 

Author Comment

by:bjennings
ID: 33510628
Thanks for all the suggestions!!  I am looking at the properties of the scope....can't I just change the end ipaddress to extend the ip addresses?  My scope has the ipaddresses stopping at .150, so I am thinking I could just change that to .175 and give myself another 25 ipaddresses.


0
 
LVL 39

Accepted Solution

by:
Krzysztof Pytko earned 1400 total points
ID: 33510694
Yes you can, if they are freeand are in the same subnet :) You didn't mentioned have many new IPs want to use and what is your network id :)
0
 
LVL 20

Expert Comment

by:woolnoir
ID: 33511618
As a general rule btw ( as previous experts have commented on ) its always a good ideal to have a relatively low lease time - a lot of people pick 7 days which for an office environment is pretty silly. It depends on your occupancy levels, but if you have a significant section of your workforce who arent working every day, then pick something like 24 hours for a lease, that way a 50% occupancy means 50% IP allocation on average, rather than closer to 100% if you use 7 days.

I know im going off topic a bit, but re-do your lease together with some tweaking as i and other posters have suggested should help you loads.
0
 

Author Closing Comment

by:bjennings
ID: 33569786
Worked great!!!....Thanks for your help!
0
 
LVL 39

Expert Comment

by:Krzysztof Pytko
ID: 33573972
You're welcome
0

Featured Post

New feature and membership benefit!

New feature! Upgrade and increase expert visibility of your issues with Priority Questions.

Question has a verified solution.

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

The HP utility "HP Lights-Out Online Configuration Utility for Windows Server 2003/2008" could be of great use when it comes to remotely configure a HP servers ILO WITHOUT rebooting the server. We would only need to create and run scripts using thi…
While rebooting windows server 2003 server , it's showing "active directory rebuilding indices please wait" at startup. It took a little while for this process to complete and once we logged on not all the services were started so another reboot is …
Monitoring a network: how to monitor network services and why? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the philosophy behind service monitoring and why a handshake validation is critical in network monitoring. Software utilized …
In this video, Percona Solution Engineer Dimitri Vanoverbeke discusses why you want to use at least three nodes in a database cluster. To discuss how Percona Consulting can help with your design and architecture needs for your database and infras…
Suggested Courses

801 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