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Fedora Core 9 DHCP server not handing out reservations.

Posted on 2008-10-06
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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!
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Question by:ovnadmin
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Expert Comment

by:kukno
ID: 22653332
Hi,

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

Regards
Kurt
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Author Comment

by:ovnadmin
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.
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Expert Comment

by:kukno
ID: 22653465
can you please post the syslog messages and the DHCP config file?
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Author Comment

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

dhcpd.conf:
host host-4.60
      {
       hardware ethernet 00:e0:0c:00:00:60;
       next-server 10.11.12.5;
       filename "filename";
       fixed-address 192.168.4.60;
       option subnet-mask 255.255.240.0;
       option root-path "/bootpath";
      }
Syslog:
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 192.168.8.242 to 00:0e:0c:00:00:60 via eth0
Oct  6 15:38:50 servername dhcpd: DHCPREQUEST for 192.168.8.242 (192.168.1.24) from            00:0e:0c:00:00:60 via eth0
Oct  6 15:38:50 servername dhcpd: DHCPACK on 192.168.8.242 to 00:0e:0c:00:00:60 via
eth0
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Accepted Solution

by:
kukno earned 2000 total points
ID: 22653914
Hi,

there is a difference:

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

e0 instead of 0e !!

Regards
Kurt
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Author Closing Comment

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