DHCP Not Working on LAN

yakar

pfSense 2.0.2 and configuration:

LAN: 192.168.2.0
Netmask: 255.255.255.0
IP Range: 192.168.2.1 - 192.168.2.254

dhcpd.conf:


option domain-name "mydomainname";
option ldap-server code 95 = text;
option domain-search-list code 119 = text;

default-lease-time 7200;
max-lease-time 86400;
log-facility local7;
ddns-update-style none;
one-lease-per-client true;
deny duplicates;
ping-check true;
authoritative;
subnet 192.168.2.0 netmask 255.255.255.0 {
        pool {
                range 192.168.2.1 192.168.2.250;
        }
        option routers 192.168.2.1;
        option domain-name-servers 192.168.2.1;

}
host s_lan_0 {
        hardware ethernet 18:28:61:52:00:00;
        fixed-address 192.168.2.251;
}
host s_lan_1 {
        hardware ethernet 18:28:61:52:00:00;
        fixed-address 192.168.2.252;
}
host s_lan_2 {
        hardware ethernet 18:28:61:57:00:00;
        fixed-address 192.168.2.253;
}

/var/log/dhcpd.log:


Mar  4 10:23:39 firewall dhcpd: Internet Systems Consortium DHCP Server 4.2.4-P1
Mar  4 10:23:39 firewall dhcpd: Copyright 2004-2012 Internet Systems Consortium.
Mar  4 10:23:39 firewall dhcpd: All rights reserved.
Mar  4 10:23:39 firewall dhcpd: For info, please visit https://www.isc.org/software/dhcp/
Mar  4 10:23:39 firewall dhcpd: Wrote 0 deleted host decls to leases file.
Mar  4 10:23:39 firewall dhcpd: Wrote 0 new dynamic host decls to leases file.
Mar  4 10:23:39 firewall dhcpd: Wrote 0 leases to leases file.
Mar  4 10:23:39 firewall dhcpd: Listening on BPF/re0/54:e6:fc:81:dd:18/192.168.2.0/24
Mar  4 10:23:39 firewall dhcpd: Sending on   BPF/re0/54:e6:fc:81:dd:18/192.168.2.0/24
Mar  4 10:23:39 firewall dhcpd: Sending on   Socket/fallback/fallback-net
Mar  4 10:23:40 firewall dhcpd: There's already a DHCP server running.
Mar  4 10:23:40 firewall dhcpd:
Mar  4 10:23:40 firewall dhcpd: If you did not get this software from ftp.isc.org, please
Mar  4 10:23:40 firewall dhcpd: get the latest from ftp.isc.org and install that before
Mar  4 10:23:40 firewall dhcpd: requesting help.
Mar  4 10:23:40 firewall dhcpd:
Mar  4 10:23:40 firewall dhcpd: If you did get this software from ftp.isc.org and have not
Mar  4 10:23:40 firewall dhcpd: yet read the README, please read it before requesting help.
Mar  4 10:23:40 firewall dhcpd: If you intend to request help from the dhcp-server@isc.org
Mar  4 10:23:40 firewall dhcpd: mailing list, please read the section on the README about
Mar  4 10:23:40 firewall dhcpd: submitting bug reports and requests for help.
Mar  4 10:23:40 firewall dhcpd:
Mar  4 10:23:40 firewall dhcpd: Please do not under any circumstances send requests for
Mar  4 10:23:40 firewall dhcpd: help directly to the authors of this software - please
Mar  4 10:23:40 firewall dhcpd: send them to the appropriate mailing list as described in
Mar  4 10:23:40 firewall dhcpd: the README file.
Mar  4 10:23:40 firewall dhcpd:
Mar  4 10:23:40 firewall dhcpd: exiting.

dhcpd not work.. :-\

cmb

Sounds like a stale PID got left behind somehow. Diag>Command, run:

rm /var/run/dhcpd.pid

Then browse to Status>Services and click Start. Suspect that'll fix it and it's unlikely to recur.

yakar

rm dhcpd.pid

not work :'(

yakar

There is not any error log in syslogs > System or DHCP tab..

wallabybob

@AydinY:

rm dhcpd.pid

not work :'(

Please elaborate: You got an error report on attempting to remove the file? (Did you actually type the full path given?)
The rm command didn't report anything and dhcpd didn't restart?

yakar

cd /var/run/; rm dhcpd.pid

dhcpd.pid is empty and deleted successful. Status > Services > DHCPD Start..


[2.0.2-RELEASE][root@mydomainname]/var/run(14): ps aux | grep dhcpd
root   26572  0.0  0.1  4956  2552  ??  Is    9:58AM   0:00.10 /usr/sbin/syslogd -c -c -l /var/dhcpd/var/run/log -f /var/etc/syslog.conf
root   13791  0.0  0.1  3524  1264   0  S+    3:02PM   0:00.00 grep dhcpd

???

yakar

im fixed error:

cat /var/dhcpd/var/run/dhcpd.pid
hardwa

rm /var/dhcpd/var/run/dhcpd.pid

and Services > Dhcpd > Start..

why "hardwa" in the pid file? any have a idea?

yakar

i think this is a bug..

wallabybob

@AydinY:

i think this is a bug..

I agree.

cmb

There have very rarely been issues with stale dhcpd PIDs going back years, maybe happened a handful of times, and good luck replicating it. We don't touch the dhcpd.pid contents at all, whatever ends up in that file is put there by ISC dhcpd.