Comments on: DHCP Server

By: orangehat

orangehat — Fri, 05 Oct 2012 13:37:20 +0000

Sounds like a home work question.

By: ekardris

ekardris — Thu, 04 Oct 2012 15:35:52 +0000

I think everyone here is on the same page with DHCP. When you mention 300 clients recieving DHCP, I assume you mean some type of user workstation?I’m curious how you are setting up your printers, servers and static devices. I’m also curious if your DHCP is letting go of IP addresses. There is always a redflag when someone says 300 of anything when talking about a standard subnet.You didn’t mention that you have multiple DHCP segments or a non-standard scope (i.e. more than 254 IP addresses per segment) I am wondering if your environment is highly mobile and you’ve never had more than 200 users on the network at a time? Is the lease on your IP numbers very short? Normally I would have multiple scopes setup. I wonder if you have a backup DHCP server that is backing up the original and it’s been taking part of the load and it has failed? There are so many things it could be, it’s difficult to answer the question without more details on the environment.

By: jinteik

jinteik — Wed, 03 Oct 2012 14:45:10 +0000

and what is the scope allocated for your machines? if lets say you set 300 u got 320, then 20 pc wont get ip

By: Gabe9527

Gabe9527 — Wed, 03 Oct 2012 12:40:38 +0000

Are the new machines in a seperate segment? Is there firewalls in the way?Are the NIC card properties set to used DHCP?Is there enough IP addresses in the scope?Are these machines trying to use a 169.x.x.x? this means the NIC card has tried and assigned itself an IP address?As Tom has said more info please

By: TomLiotta

TomLiotta — Wed, 03 Oct 2012 11:19:36 +0000

what is the reason?

Without an error message or event identifier of some kind, we can’t know why it’s not working. One reasonable possibility is that the DHCP server was configured to supply a range of addresses, and the range is now filled. You’ll need to update your DHCP server to cover a larger range if that is the problem.

If it’s not the problem, then more information is needed.

Tom