Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17


Fedora Core 9 DHCP server not handing out reservations.

Posted on 2008-10-06
Medium Priority
Last Modified: 2013-12-06
I have a Fedora Core 9 server running as a DHCP and DNS server. There are many reservations, but one DHCP client will not pick up the correct IP. However, it does obtain an IP from the specified pool. I have verified the MAC and the other options specified. I've also deleted and recreated the reservation (via webmin & dhcpd.conf), stopped and restarted the server. The syslog doesn't show anything out of the ordinary. I'm @ a loss!
Question by:ovnadmin
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
LVL 10

Expert Comment

ID: 22653332

maybe the client is sending the DHCP request with an "unexpected" MAC address? Does it have one or two network interfaces?


Author Comment

ID: 22653406
Thanks for the prompt response!

It has serveral network interfaces... it's telecom equipment with a linux CLI. But the syslog shows the DHCPDISCOVER, OFFER, etc..coming from the correct MAC.
LVL 10

Expert Comment

ID: 22653465
can you please post the syslog messages and the DHCP config file?
NFR key for Veeam Backup for Microsoft Office 365

Veeam is happy to provide a free NFR license (for 1 year, up to 10 users). This license allows for the non‑production use of Veeam Backup for Microsoft Office 365 in your home lab without any feature limitations.


Author Comment

ID: 22653773
Here's the pertinent information regarding the problem client below. Please note, there's no there issues with other reservations.

host host-4.60
       hardware ethernet 00:e0:0c:00:00:60;
       filename "filename";
       option subnet-mask;
       option root-path "/bootpath";
Oct  6 15:38:49 servername dhcpd: DHCPDISCOVER from 00:0e:0c:00:00:60 via eth0
Oct  6 15:38:50 servername dhcpd: DHCPOFFER on to 00:0e:0c:00:00:60 via eth0
Oct  6 15:38:50 servername dhcpd: DHCPREQUEST for ( from            00:0e:0c:00:00:60 via eth0
Oct  6 15:38:50 servername dhcpd: DHCPACK on to 00:0e:0c:00:00:60 via
LVL 10

Accepted Solution

kukno earned 2000 total points
ID: 22653914

there is a difference:

config file: 00:e0:0c:00:00:60
syslog: 00:0e:0c:00:00:60

e0 instead of 0e !!


Author Closing Comment

ID: 31503553
Wow, been looking @ those 2 macs all day and didn't catch that. Thank you!

Featured Post

On Demand Webinar: Networking for the Cloud Era

Ready to improve network connectivity? Watch this webinar to learn how SD-WANs and a one-click instant connect tool can boost provisions, deployment, and management of your cloud connection.

Question has a verified solution.

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

A Cisco router can be configured as a DHCP Server. There are advantages and disadvantages in making your Cisco router work as DHCP Server. Almost all the features for windows DHCP can be configured on Cisco-based DHCP server. Some of the features me…
The purpose of this article is to fix the unknown display problem in Linux Mint operating system. After installing the OS if you see Display monitor is not recognized then we can install "MESA" utilities to fix this problem or we can install additio…
How to Install VMware Tools in Red Hat Enterprise Linux 6.4 (RHEL 6.4) Step-by-Step Tutorial
Do you want to know how to make a graph with Microsoft Access? First, create a query with the data for the chart. Then make a blank form and add a chart control. This video also shows how to change what data is displayed on the graph as well as form…

705 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