Dhcp Server Error

Posted on 2003-03-16
Medium Priority
Last Modified: 2010-03-18
I'm too new with this OS. Redhat 8.0. I want to configure my Redhat to a Dhcp Server..I got this error when i try to start my dhcpd.conf. This is the error message.
---******** start **********
Starting dhcpd: Internet Software Consortium DHCP Server V3.0pl1
Copyright 1995-2001 Internet Software Consortium.
All rights reserved.
For info, please visit http://www.isc.org/products/DHCP
Wrote 0 leases to leases file.
Listening on LPF/eth0/00:08:74:92:63:09/
Sending on   LPF/eth0/00:08:74:92:63:09/
Can't bind to dhcp address: Address already in use
Please make sure there is no other dhcp server
running and that there's no entry for dhcp or
bootp in /etc/inetd.conf.   Also make sure you
are not running HP JetAdmin software, which
includes a bootp server.

If you did not get this software from ftp.isc.org, please
get the latest from ftp.isc.org and install that before
requesting help.

If you did get this software from ftp.isc.org and have not
yet read the README, please read it before requesting help.
If you intend to request help from the dhcp-server@isc.org
mailing list, please read the section on the README about
submitting bug reports and requests for help.

Please do not under any circumstances send requests for
help directly to the authors of this software - please
send them to the appropriate mailing list as described in
the README file.

--****** End *********

This is my /etc/dhcpd.conf file.

ddns-update-style interim;
#ignore client-updates;

subnet netmask {

        range                 ;
        default-lease-time              6000;
        max-lease-time                  6000;
        option broadcast-address;
        option routers        ;
        option subnet-mask    ;
        option domain-name-servers;
        option ip-forwarding            off;
#       range dynamic-bootp;


I checked all the possibilities but still nothing happened...Hope you can gave me idea how to solve this problem:)

Question by:jomelvicente
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Expert Comment

ID: 8150292

Two questions (which might be an answer to your problem):

1. Assuming you have more than one NIC, do you have your ethernet cable plugged into the correct NIC card?

2. What is your NIC card's IP address? (dbl-check it)


Expert Comment

ID: 8151061
I think this problem is caused by your system's service.
you can use "netstat -an" to see if the udp port 67 is opened,this port is used by dhcpd. And then use lsof -i:67 to see what program is occupying this port,or use ps -ef|grep dhcp to see if dhcpd is already running.

Expert Comment

ID: 8152550
As depike wrote, your port 67 seems already bound to a service (might be bootp, another dhcpd or...). Hence you have to find what does. So I'll just give you a few RH tips that might be useful.

"service" can be used to manually start/check/stop daemons such as dhcpd:
"service dhcpd status" will tell you if dhcpd has been statrted, "service dhcpd stop" will stop dhcpd, "service dhcpd start" will start it.

"chkconfig  --level 345 dhcpd on" activates dhcpd on runlevels 3 (text bootup) 4 (not used but included) and 5 (graphical bootup - X). Changes will be effective on the next boot. Use service to manually start the service directly.
"chkconfig --list dhcpd" gives you the current configuration of service dhcpd.
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Author Comment

ID: 8158139
Actually i got it already...First i re-installed a new Redhat and i go into the process. Same dhcpd.conf..and it works...Thanks guys you've shared me a lot...keep it up!!!
LVL 19

Expert Comment

by:Gabriel Orozco
ID: 8168867
please ask for points refund and close this question.


Author Comment

ID: 8179223
Administrator, I ask for a refund for my question..(",)....
LVL 19

Expert Comment

by:Gabriel Orozco
ID: 8179291
maybe it should be done in the community suport forums, with your question id, for reference :-)

Accepted Solution

Computer101 earned 0 total points
ID: 8221912
Points refunded and placed in PAQ

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