Re: NetReg: dhcp ip abandoning problem

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From: David Meuleman (dmeuleman@defiance.edu)
Date: Mon Feb 09 2004 - 08:40:17 CST


Just a guess, but I think your DHCP client is finding the 1.1.1.x
addresses somewhere on the Internet and thus declines the DHCPOFFER.

I suggest using a subnet of one of the following ranges for your
unregistered clients. These addresses aren't routed by Internet routers.

10.0.0.0 - 10.255.255.255
172.16.0.0 - 172.31.255.255
192.168.0.0 - 192.168.255.255

Dave

On Mon, 9 Feb 2004 09:02:52 -0500, Matt Glover <mglover@chem.ufl.edu>
wrote:

> Hi All,
>
> I'm having a problem getting dhcp to work correctly
> with netreg-1.3rc2 on a fedora box. I set the server
> up on an external network with the server and a
> Windows 2000 laptop connected with a 4 port ethernet
> switch. Gave the server a legitimate IP address and a
> virtual IP of 1.1.1.1. Everything works as it should.
> Laptop gets the correct IP, Gateway, DNS server etc.
> When I connected both computers to our real network
> the laptop won't keep an IP address. The error on the
> laptop is:
>
>
> The following error occurred when renewing adapter
> Local Area Connection: The DHCP client obtained an IP
> address that is already in use on the network.
>
>
> I don't think any 1.1.1.x addresses are being used on
> my network unless they are some special ip's or
> something. I have inserted all of my config files and
> the system log below. Thanks in advance for all the
> help.
>
> matt
>
>
>
>
> messages log:
>
> Feb 3 15:24:52 netreg dhcpd: dhcpd shutdown succeeded
> Feb 3 15:24:57 netreg kernel: e100: eth0 NIC Link is
> Down
> Feb 3 15:25:01 netreg kernel: e100: eth0 NIC Link is
> Up 100 Mbps Full duplex
> Feb 3 15:35:37 netreg dhcpd: Internet Software
> Consortium DHCP Server V3.0pl2
> Feb 3 15:35:37 netreg dhcpd: Copyright 1995-2003
> Internet Software Consortium.
> Feb 3 15:35:37 netreg dhcpd: All rights reserved.
> Feb 3 15:35:37 netreg dhcpd: For info, please visit
> http://www.isc.org/products
> /DHCP
> Feb 3 15:35:37 netreg dhcpd: Wrote 0 deleted host
> decls to leases file.
> Feb 3 15:35:37 netreg dhcpd: Wrote 0 new dynamic host
> decls to leases file.
> Feb 3 15:35:37 netreg dhcpd: Wrote 1 leases to leases
> file.
> Feb 3 15:35:37 netreg dhcpd: Internet Software
> Consortium DHCP Server V3.0pl2
> Feb 3 15:35:37 netreg dhcpd: Copyright 1995-2003
> Internet Software Consortium.
> Feb 3 15:35:37 netreg dhcpd: All rights reserved.
> Feb 3 15:35:37 netreg dhcpd: For info, please visit
> http://www.isc.org/products
> /DHCP
> Feb 3 15:35:37 netreg dhcpd: Wrote 0 deleted host
> decls to leases file.
> Feb 3 15:35:37 netreg dhcpd: Wrote 0 new dynamic host
> decls to leases file.
> Feb 3 15:35:37 netreg dhcpd: Wrote 1 leases to leases
> file.
> Feb 3 15:35:37 netreg dhcpd: Listening on
> LPF/eth0/00:07:e9:86:10:7b/lei
> Feb 3 15:35:37 netreg dhcpd: Sending on
> LPF/eth0/00:07:e9:86:10:7b/lei
> Feb 3 15:35:37 netreg dhcpd: Sending on
> Socket/fallback/fallback-net
> Feb 3 15:35:37 netreg dhcpd: Listening on
> LPF/eth0/00:07:e9:86:10:7b/lei
> Feb 3 15:35:37 netreg dhcpd: Sending on
> LPF/eth0/00:07:e9:86:10:7b/lei
> Feb 3 15:35:37 netreg dhcpd: Sending on
> Socket/fallback/fallback-net
> Feb 3 15:35:37 netreg dhcpd: dhcpd startup succeeded
> Feb 3 15:36:16 netreg dhcpd: DHCPDISCOVER from
> 00:e0:b8:3c:67:a7 (IT-CART) via
> eth0
> Feb 3 15:36:17 netreg dhcpd: DHCPOFFER on 1.1.1.200
> to 00:e0:b8:3c:67:a7 (IT-CA
> RT) via eth0
> Feb 3 15:36:17 netreg dhcpd: DHCPREQUEST for
> 1.1.1.200 (1.1.1.1) from 00:e0:b8:
> 3c:67:a7 (IT-CART) via eth0
> Feb 3 15:36:17 netreg dhcpd: DHCPACK on 1.1.1.200 to
> 00:e0:b8:3c:67:a7 (IT-CART
> ) via eth0
> Feb 3 15:36:17 netreg dhcpd: Abandoning IP address
> 1.1.1.200: declined.
> Feb 3 15:36:17 netreg dhcpd: DHCPDECLINE of 1.1.1.200
> from 00:e0:b8:3c:67:a7 (I
> T-CART) via eth0: not found
> Feb 3 15:36:17 netreg dhcpd: DHCPDISCOVER from
> 00:e0:b8:3c:67:a7 via eth0
> Feb 3 15:36:18 netreg dhcpd: DHCPOFFER on 1.1.1.199
> to 00:e0:b8:3c:67:a7 (IT-CA
> RT) via eth0
> Feb 3 15:36:18 netreg dhcpd: DHCPREQUEST for
> 1.1.1.199 (1.1.1.1) from 00:e0:b8:
> 3c:67:a7 (IT-CART) via eth0
> Feb 3 15:36:18 netreg dhcpd: DHCPACK on 1.1.1.199 to
> 00:e0:b8:3c:67:a7 (IT-CART
> ) via eth0
> Feb 3 15:36:18 netreg dhcpd: Abandoning IP address
> 1.1.1.199: declined.
> Feb 3 15:36:18 netreg dhcpd: DHCPDECLINE of 1.1.1.199
> from 00:e0:b8:3c:67:a7 (I
> T-CART) via eth0: not found
> Feb 3 15:36:18 netreg dhcpd: DHCPDISCOVER from
> 00:e0:b8:3c:67:a7 via eth0
> Feb 3 15:36:19 netreg dhcpd: DHCPOFFER on 1.1.1.198
> to 00:e0:b8:3c:67:a7 (IT-CA
> RT) via eth0
> Feb 3 15:36:19 netreg dhcpd: DHCPREQUEST for
> 1.1.1.198 (1.1.1.1) from 00:e0:b8:
> 3c:67:a7 (IT-CART) via eth0
> Feb 3 15:36:19 netreg dhcpd: DHCPACK on 1.1.1.198 to
> 00:e0:b8:3c:67:a7 (IT-CART
> ) via eth0
> Feb 3 15:36:19 netreg dhcpd: Abandoning IP address
> 1.1.1.198: declined.
> Feb 3 15:36:19 netreg dhcpd: DHCPDECLINE of 1.1.1.198
> from 00:e0:b8:3c:67:a7 (I
> T-CART) via eth0: not found
> Feb 3 15:36:22 netreg dhcpd: DHCPDISCOVER from
> 00:e0:b8:3c:67:a7 via eth0
> Feb 3 15:36:23 netreg dhcpd: DHCPOFFER on 1.1.1.197
> to 00:e0:b8:3c:67:a7 (IT-CA
> RT) via eth0
> Feb 3 15:36:23 netreg dhcpd: DHCPREQUEST for
> 1.1.1.197 (1.1.1.1) from 00:e0:b8:
> 3c:67:a7 (IT-CART) via eth0
> Feb 3 15:36:23 netreg dhcpd: DHCPACK on 1.1.1.197 to
> 00:e0:b8:3c:67:a7 (IT-CART
> ) via eth0
> Feb 3 15:36:23 netreg dhcpd: Abandoning IP address
> 1.1.1.197: declined.
> Feb 3 15:36:23 netreg dhcpd: DHCPDECLINE of 1.1.1.197
> from 00:e0:b8:3c:67:a7 (I
> T-CART) via eth0: not found
> Feb 3 15:36:22 netreg ntpd[4497]: time reset
> -0.927805 s
> Feb 3 15:36:22 netreg ntpd[4497]: kernel time
> discipline status change 41
> Feb 3 15:36:22 netreg ntpd[4497]: synchronisation
> lost
> Feb 3 15:36:32 netreg dhcpd: DHCPDISCOVER from
> 00:e0:b8:3c:67:a7 via eth0
> Feb 3 15:36:33 netreg dhcpd: DHCPOFFER on 1.1.1.196
> to 00:e0:b8:3c:67:a7 (IT-CA
> RT) via eth0
> Feb 3 15:36:33 netreg dhcpd: DHCPREQUEST for
> 1.1.1.196 (1.1.1.1) from 00:e0:b8:
> 3c:67:a7 (IT-CART) via eth0
> Feb 3 15:36:33 netreg dhcpd: DHCPACK on 1.1.1.196 to
> 00:e0:b8:3c:67:a7 (IT-CART
> ) via eth0
> Feb 3 15:36:33 netreg dhcpd: Abandoning IP address
> 1.1.1.196: declined.
> Feb 3 15:36:33 netreg dhcpd: DHCPDECLINE of 1.1.1.196
> from 00:e0:b8:3c:67:a7 (I
> T-CART) via eth0: not found
> Feb 3 15:36:43 netreg dhcpd: DHCPDISCOVER from
> 00:e0:b8:3c:67:a7 via eth0
> Feb 3 15:36:44 netreg dhcpd: DHCPOFFER on 1.1.1.195
> to 00:e0:b8:3c:67:a7 (IT-CA
> RT) via eth0
> Feb 3 15:36:44 netreg dhcpd: DHCPREQUEST for
> 1.1.1.195 (1.1.1.1) from 00:e0:b8:
> 3c:67:a7 (IT-CART) via eth0
> Feb 3 15:36:44 netreg dhcpd: DHCPACK on 1.1.1.195 to
> 00:e0:b8:3c:67:a7 (IT-CART
> ) via eth0
> Feb 3 15:36:44 netreg dhcpd: Abandoning IP address
> 1.1.1.195: declined.
> Feb 3 15:36:44 netreg dhcpd: DHCPDECLINE of 1.1.1.195
> from 00:e0:b8:3c:67:a7 (I
> T-CART) via eth0: not found
> Feb 3 15:36:54 netreg dhcpd: DHCPDISCOVER from
> 00:e0:b8:3c:67:a7 via eth0
> Feb 3 15:36:55 netreg dhcpd: DHCPOFFER on 1.1.1.194
> to 00:e0:b8:3c:67:a7 (IT-CA
> RT) via eth0
> Feb 3 15:36:55 netreg dhcpd: DHCPREQUEST for
> 1.1.1.194 (1.1.1.1) from 00:e0:b8:
> 3c:67:a7 (IT-CART) via eth0
> Feb 3 15:36:55 netreg dhcpd: DHCPACK on 1.1.1.194 to
> 00:e0:b8:3c:67:a7 (IT-CART
> ) via eth0
> Feb 3 15:36:55 netreg dhcpd: Abandoning IP address
> 1.1.1.194: declined.
> Feb 3 15:36:55 netreg dhcpd: DHCPDECLINE of 1.1.1.194
> from 00:e0:b8:3c:67:a7 (I
> T-CART) via eth0: not found
> Feb 3 15:37:04 netreg dhcpd: DHCPDISCOVER from
> 00:e0:b8:3c:67:a7 via eth0
> Feb 3 15:37:05 netreg dhcpd: DHCPOFFER on 1.1.1.193
> to 00:e0:b8:3c:67:a7 (IT-CA
> RT) via eth0
> Feb 3 15:37:05 netreg dhcpd: DHCPREQUEST for
> 1.1.1.193 (1.1.1.1) from 00:e0:b8:
> 3c:67:a7 (IT-CART) via eth0
> Feb 3 15:37:05 netreg dhcpd: DHCPACK on 1.1.1.193 to
> 00:e0:b8:3c:67:a7 (IT-CART
> ) via eth0
> Feb 3 15:37:05 netreg dhcpd: Abandoning IP address
> 1.1.1.193: declined.
> Feb 3 15:37:05 netreg dhcpd: DHCPDECLINE of 1.1.1.193
> from 00:e0:b8:3c:67:a7 (I
> T-CART) via eth0: not found
> Feb 3 15:37:15 netreg dhcpd: DHCPDISCOVER from
> 00:e0:b8:3c:67:a7 via eth0
> Feb 3 15:37:16 netreg dhcpd: DHCPOFFER on 1.1.1.192
> to 00:e0:b8:3c:67:a7 (IT-CA
> RT) via eth0
> Feb 3 15:37:16 netreg dhcpd: DHCPREQUEST for
> 1.1.1.192 (1.1.1.1) from 00:e0:b8:
> 3c:67:a7 (IT-CART) via eth0
> Feb 3 15:37:16 netreg dhcpd: DHCPACK on 1.1.1.192 to
> 00:e0:b8:3c:67:a7 (IT-CART
> ) via eth0
> Feb 3 15:37:16 netreg dhcpd: Abandoning IP address
> 1.1.1.192: declined.
> Feb 3 15:37:16 netreg dhcpd: DHCPDECLINE of 1.1.1.192
> from 00:e0:b8:3c:67:a7 (I
> T-CART) via eth0: not found
> Feb 3 15:37:26 netreg dhcpd: DHCPDISCOVER from
> 00:e0:b8:3c:67:a7 via eth0
> Feb 3 15:37:27 netreg dhcpd: DHCPOFFER on 1.1.1.191
> to 00:e0:b8:3c:67:a7 (IT-CA
> RT) via eth0
> Feb 3 15:37:27 netreg dhcpd: DHCPREQUEST for
> 1.1.1.191 (1.1.1.1) from 00:e0:b8:
> 3c:67:a7 (IT-CART) via eth0
> Feb 3 15:37:27 netreg dhcpd: DHCPACK on 1.1.1.191 to
> 00:e0:b8:3c:67:a7 (IT-CART
> ) via eth0
> Feb 3 15:37:27 netreg dhcpd: Abandoning IP address
> 1.1.1.191: declined.
> Feb 3 15:37:27 netreg dhcpd: DHCPDECLINE of 1.1.1.191
> from 00:e0:b8:3c:67:a7 (I
> T-CART) via eth0: not found
> Feb 3 15:37:27 netreg dhcpd: DHCPDISCOVER from
> 00:0d:56:7b:05:a9 via eth0
> Feb 3 15:37:28 netreg dhcpd: DHCPOFFER on 1.1.1.190
> to 00:0d:56:7b:05:a9 (Colin
> ) via eth0
> Feb 3 15:37:28 netreg dhcpd: DHCPREQUEST for
> 1.1.1.190 (1.1.1.1) from 00:0d:56:
> 7b:05:a9 (Colin) via eth0
> Feb 3 15:37:28 netreg dhcpd: DHCPACK on 1.1.1.190 to
> 00:0d:56:7b:05:a9 (Colin)
> via eth0
> Feb 3 15:37:28 netreg dhcpd: Abandoning IP address
> 1.1.1.190: declined.
> Feb 3 15:37:28 netreg dhcpd: DHCPDECLINE of 1.1.1.190
> from 00:0d:56:7b:05:a9 (C
> olin) via eth0: not found
> Feb 3 15:37:37 netreg dhcpd: DHCPDISCOVER from
> 00:e0:b8:3c:67:a7 via eth0
> Feb 3 15:37:38 netreg dhcpd: DHCPOFFER on 1.1.1.189
> to 00:e0:b8:3c:67:a7 (IT-CA
> RT) via eth0
> Feb 3 15:37:38 netreg dhcpd: DHCPREQUEST for
> 1.1.1.189 (1.1.1.1) from 00:e0:b8:
> 3c:67:a7 (IT-CART) via eth0
> Feb 3 15:37:38 netreg dhcpd: DHCPACK on 1.1.1.189 to
> 00:e0:b8:3c:67:a7 (IT-CART
> ) via eth0
> Feb 3 15:37:38 netreg dhcpd: Abandoning IP address
> 1.1.1.189: declined.
> Feb 3 15:37:38 netreg dhcpd: DHCPDECLINE of 1.1.1.189
> from 00:e0:b8:3c:67:a7 (I
> T-CART) via eth0: not found
> Feb 3 15:37:38 netreg dhcpd: DHCPDISCOVER from
> 00:0d:56:7b:05:a9 via eth0
> Feb 3 15:37:39 netreg dhcpd: DHCPOFFER on 1.1.1.188
> to 00:0d:56:7b:05:a9 (Colin
> ) via eth0
> Feb 3 15:37:39 netreg dhcpd: DHCPREQUEST for
> 1.1.1.188 (1.1.1.1) from 00:0d:56:
> 7b:05:a9 (Colin) via eth0
> Feb 3 15:37:39 netreg dhcpd: DHCPACK on 1.1.1.188 to
> 00:0d:56:7b:05:a9 (Colin)
> via eth0
> Feb 3 15:37:39 netreg dhcpd: Abandoning IP address
> 1.1.1.188: declined.
> Feb 3 15:37:39 netreg dhcpd: DHCPDECLINE of 1.1.1.188
> from 00:0d:56:7b:05:a9 (C
> olin) via eth0: not found
> Feb 3 15:37:48 netreg dhcpd: DHCPDISCOVER from
> 00:e0:b8:3c:67:a7 via eth0
> Feb 3 15:37:49 netreg dhcpd: DHCPOFFER on 1.1.1.187
> to 00:e0:b8:3c:67:a7 (IT-CA
> RT) via eth0
> Feb 3 15:37:49 netreg dhcpd: DHCPREQUEST for
> 1.1.1.187 (1.1.1.1) from 00:e0:b8:
> 3c:67:a7 (IT-CART) via eth0
> Feb 3 15:37:49 netreg dhcpd: DHCPACK on 1.1.1.187 to
> 00:e0:b8:3c:67:a7 (IT-CART
> ) via eth0
> Feb 3 15:37:49 netreg dhcpd: DHCPDISCOVER from
> 00:0d:56:7b:05:a9 via eth0
> Feb 3 15:37:49 netreg dhcpd: Abandoning IP address
> 1.1.1.187: declined.
> Feb 3 15:37:49 netreg dhcpd: DHCPDECLINE of 1.1.1.187
> from 00:e0:b8:3c:67:a7 (I
> T-CART) via eth0: not found
>
>
> db.root file:
>
>
> ; Bind 8 -- Zone file -- for NetReg
> ; Belongs at /etc/db.root
>
>
> @ IN SOA netreg.chem.school.edu.
> root.netreg.chem.ufl.edu. (
> 8
> 10800
> 3600
> 604800
> 86400
> )
> IN NS
> netreg.chem.school.edu.
> netreg 86400 IN A 1.1.1.1
> *. 86400 IN A 1.1.1.1
>
>
>
>
>
>
> named.conf
>
>
> [root@netreg etc]# cat named.conf
> // named.conf for NetReg
> // Belongs at /etc/named.conf
>
> server 1.1.1.1{
> bogus yes;
> };
>
> options {
> directory "/etc/";
> recursion no;
> fetch-glue no;
> };
>
> zone "." in {
> type master;
> file "db.root";
> };
>
>
>
> dhcpd.conf:
>
>
> ##
> ## /etc/dhcpd/dhcpd.conf
> ## ISC DHCPD v3 Configuration file
> ## anakin.southwestern.edu -- DHCP registration server
> ## Peter Valian -- June 04 1999
> ## Modified: 20010813
>
>
> option domain-name "chem.school.edu";
> option netbios-node-type 8;
> server-identifier netreg.chem.school.edu;
> max-lease-time 120;
> default-lease-time 120;
> allow bootp;
> allow booting;
> ddns-update-style ad-hoc;
> ddns-updates off;
> omapi-port 7911;
>
> shared-network lei {
> subnet 1.1.1.0 netmask 255.255.255.0 {
> option routers 1.1.1.1;
> }
>
> subnet xxx.yyy.16.0 netmask 255.255.255.0 {
> option routers xxx.yyy.16.12;
> }
>
> #unknown client pool
> pool {
> option domain-name-servers 1.1.1.1;
> max-lease-time 120;
> default-lease-time 120;
> range 1.1.1.100 1.1.1.200;
> allow unknown clients;
> }
>
> #known client pool
> pool {
> option domain-name-servers xxx.yyy.16.12;
> max-lease-time 28800;
> default-lease-time 28800;
> range xxx.yyy.16.101 xxx.yyy.16.201;
> deny unknown clients;
> }
> }
>
>
> #<BEGIN_STATIC>#
> host sample-1 { hardware ethernet 00:30:DB:00:A7:A3 ;
> }
> #Mozilla/4.0 (compatible; MSIE 5.0; Windows 98;
> DigExt;
> AT&T WNS5.0)#20010813 15:46:25#161.13.61.150
>
>
>
> subnet.dat:
>
> # Fields followed by colons:
> # 1. Subnet/mask length for registered clients
> # 2. Location of subnet
> # 3. Total number of leases from the subnet for
> registered clients
> # 4. Subnet/mask length for unregistered clients if
> different,
> # otherwise blank. Note, if you do not specify a
> different
> # "subnet" for unregistered clients, active leases
> for this
> # subnet (#1 above) will be counted as belonging to
> unregistered
> # clients. You should specify a range for unknown
> clients in
> # your dhcpd.conf file that be covered a subnet, no
> matter how
> # small and regardless of whether it overlaps with
> the subnet
> # for registered clients. A trailing colon is
> optional.
> #
> # e.g.
> # 10.0.64.0/20:Engineering:425::
> # 10.0.96.0/24:Sales:25:192.168.0.0/24:
> # 10.0.128.0/24:Building 52:127:10.0.128.192/26:
> #
> xxx.yyy.16.0/24: Test Net1: 100: 1.1.1.0/24:
>
>
> **********************************************************************
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