FW: Config help!

Elliott Bujan ebujan at initialplants.com
Mon Apr 3 19:32:00 UTC 2006


I hate to see when this happens but the server is back up assigning
addresses to my subnets and I don't know what made it to work.
 From working with a couple of you guys (thanks a lot for your time put
aside) I made these changes as suggested:

- took the shared-network statement
- instead of using the script in /etc/rc.d/init.d/ I used:
 /usr/sbin/dhcp -cf /etc/dhcpd.conf -lf /var/lib/dhcp/dhcpd.leases start |
stop (didn't work)

- I put the authoritative statement in the global section, I had it inside
each subnet.

After making these changes I saw in the log that it wasn't working.
Sometime while I was making the changes, it decided to work.  I am still not
able to start/stop the server with the script.
One other change I made this morning that I know was after the fact, was to
define a subnet for my ip phones (they run on a vlan at the Corporate
network and use a separate MS dhcp with their own scope) like this:

shared-network INITIAL {
# Subnet: Corporate
        subnet 192.9.200.0 netmask 255.255.255.0 {
                option routers 192.9.200.241;
                range 192.9.200.50 192.9.200.97;
                range 192.9.200.116 192.9.200.199;
                option broadcast-address 192.9.200.255;
                }
# Subnet: IPPhonesCorporate
        subnet 172.16.99.0 netmask 255.255.255.0 {
                }

}
After all this headache, I decided to move the dhcp services down to the
router at each location and only keep my corporate subnet.
Sorry I have no solution or a concrete fix.

Elliott Bujan


-----Original Message-----
From: dhcp-users-bounce at isc.org [mailto:dhcp-users-bounce at isc.org] On Behalf
Of Simon Hobson
Sent: Friday, March 31, 2006 1:15 PM
To: dhcp-users at isc.org
Subject: RE: FW: Config help!

Elliott Bujan wrote:

>This is the output for ifconfig
>[root at frank sbin]# ./ifconfig
>eth0      Link encap:Ethernet  HWaddr 00:06:29:4E:EF:94
>           inet addr:192.9.200.19  Bcast:192.9.200.255  
>Mask:255.255.255.0

So you MUST have a subnet declaration for 192.9.200.0/24.

Looking back at the original message, I see that you do in fact have this :

># Subnet: Corporate
>
>         subnet 192.9.200.0 netmask 255.255.255.0 {
>
>                 option routers 192.9.200.241;
>
>                 range 192.9.200.50 192.9.200.97;
>
>                 range 192.9.200.116 192.9.200.199;
>
>                }



>. /etc/sysconfig/dhcpd
>+ . /etc/sysconfig/dhcpd
>DHCPDARGS=eth0
>++ DHCPDARGS=eth0

This is the bit of interest. The config file is /etc/sysconfig/dhcpd, and
the variable DHCPDARGS is set to "eth0"


Everything looks OK, assuming of course that you did correctly remove 
the shared-network statement. What happens if you issue 
"/etc/rc.d/init.d/dhcpd start" now ?

Actually, I can see from the last listing :

>+ RETVAL=0
>+ echo
>
>+ '[' 0 -eq 0 ']'
>+ touch /var/lock/subsys/dhcpd
>+ return 0
>
>exit $RETVAL
>+ exit 0

that it did in fact startup.

So you should now be running OK ?

Simon


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