On 26 Jul 2007 at 16:05, Clarence W. Robison wrote:

> I have an entry in my dhcp3 dhcpd.conf which says that host xyz with
> certain MAC address should receive a fixed ip address. The server does
> not respect that entry and gives the IP address to another host with a
> different MAC address. I don't quite understand why it, dhcpd, should do
> that. Is normal behavior?
>

OPPS, the message left before I could paste snippets of the conf file.
------------ dhcpd.conf ---------------------------------------------- # #
Global Options pid-file-name "/var/run/dhcpd.pid"; lease-file-name
"/var/lib/dhcp3/dhcpd.leases"; log-facility local1; ignore client-updates;
ddns-update-style none; option domain-name-servers XXX.XXX.XXX.3,
XXX.XXX.XXX.223; default-lease-time 3600; max-lease-time
14400; authoritative; subnet XXX.XXX.XXX.0 netmask
255.255.255.192 { # Default Options
option routers XXX.XXX.XXX.1;
option subnet-mask 255.255.255.192;
option domain-name "XXXXXXXX.XXXXXX.XXX";
option time-offset -25200; # Mountain Standard Time
option ntp-servers XXX.XXX.XXX.3, XXX.XXX.XXX.58;

range dynamic-bootp XXX.XXX.XXX.22 XXX.XXX.XXX.60;

host xxx {
hardware ethernet 00:13:20:2d:31:d1;
fixed-address XXX.XXX.XXX.22;
}

host yyy {
hardware ethernet 00:03:47:f4:6b:8e;
fixed-address XXX.XXX.XXX.23;
}

........ snipped out 27 fixed-address blocks ..........

host zzz {
hardware ethernet 00:19:d1:05:ce:fd;
fixed-address XXX.XXX.XXX.50;
}
}

-------------------- endof conf -----------------------
The ip address which are not "fixed" in the conf file do not appear to be
all in use when this happens.

Any advice would be appreciated.

TIA
Clarence


--
Clarence W. Robison, P.E.
robison@kimberly.uidaho.edu
208-423-6610

------- End of forwarded message ---------
Clarence W. Robison, P.E.
robison@kimberly.uidaho.edu
208-423-6610

Clarence W. Robison(robison@kimberly.uidaho.edu) is reported to have said:
Content-Description: Mail message body
> On 26 Jul 2007 at 16:05, Clarence W. Robison wrote:
>
> > I have an entry in my dhcp3 dhcpd.conf which says that host xyz with
> > certain MAC address should receive a fixed ip address. The server does
> > not respect that entry and gives the IP address to another host with a
> > different MAC address. I don't quite understand why it, dhcpd, should do
> > that. Is normal behavior?
> >
>
> OPPS, the message left before I could paste snippets of the conf file.
> ------------ dhcpd.conf ---------------------------------------------- # #
> Global Options pid-file-name "/var/run/dhcpd.pid"; lease-file-name
> "/var/lib/dhcp3/dhcpd.leases"; log-facility local1; ignore client-updates;
> ddns-update-style none; option domain-name-servers XXX.XXX.XXX.3,
> XXX.XXX.XXX.223; default-lease-time 3600; max-lease-time
> 14400; authoritative; subnet XXX.XXX.XXX.0 netmask
> 255.255.255.192 { # Default Options
> option routers XXX.XXX.XXX.1;
> option subnet-mask 255.255.255.192;
> option domain-name "XXXXXXXX.XXXXXX.XXX";
> option time-offset -25200; # Mountain Standard Time
> option ntp-servers XXX.XXX.XXX.3, XXX.XXX.XXX.58;
>
> range dynamic-bootp XXX.XXX.XXX.22 XXX.XXX.XXX.60;
>
> host xxx {
> hardware ethernet 00:13:20:2d:31:d1;
> fixed-address XXX.XXX.XXX.22;
> }
>
No expert here, but as mine works, and differs from your config I'll
show ehat I had to do.

in my /etc/dhcp3/dhcpd.conf (not the /etc/dhcpd.conf) I have

host classy {
hardware ethernet XX:XX:XX:XX:XX:XX;
fixed-address 192.168.1.5;
option host-name "classy.mtntop.home";
}

HTH
Wayne

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On Thu, Jul 26, 2007 at 04:18:39PM -0700, Clarence W. Robison wrote:
Content-Description: Mail message body
> On 26 Jul 2007 at 16:05, Clarence W. Robison wrote:
>
> > I have an entry in my dhcp3 dhcpd.conf which says that host xyz with
> > certain MAC address should receive a fixed ip address. The server does
> > not respect that entry and gives the IP address to another host with a
> > different MAC address. I don't quite understand why it, dhcpd, should do
> > that. Is normal behavior?
> >
>
> OPPS, the message left before I could paste snippets of the conf file.
> ------------ dhcpd.conf ---------------------------------------------- # #
> Global Options pid-file-name "/var/run/dhcpd.pid"; lease-file-name
> "/var/lib/dhcp3/dhcpd.leases"; log-facility local1; ignore client-updates;
> ddns-update-style none; option domain-name-servers XXX.XXX.XXX.3,
> XXX.XXX.XXX.223; default-lease-time 3600; max-lease-time
> 14400; authoritative; subnet XXX.XXX.XXX.0 netmask
> 255.255.255.192 { # Default Options
> option routers XXX.XXX.XXX.1;
> option subnet-mask 255.255.255.192;
> option domain-name "XXXXXXXX.XXXXXX.XXX";
> option time-offset -25200; # Mountain Standard Time
> option ntp-servers XXX.XXX.XXX.3, XXX.XXX.XXX.58;
>
> range dynamic-bootp XXX.XXX.XXX.22 XXX.XXX.XXX.60;

Here, you tell dhcpd it's OK to hand out 22 - 60 to non-matching hosts,
so it does just that. Fixed address and range assigned addresses should
not overlap.

> host xxx {
> hardware ethernet 00:13:20:2d:31:d1;
> fixed-address XXX.XXX.XXX.22;
> }
--
Rob

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