booting disallowed

Simon Schlumpf simon.schlumpf at clanserver.ch
Tue Dec 11 10:58:20 UTC 2007


Hi Everybody

Since some days, users on our network have problems getting an IP 
address via DHCP. Some users get an IP address without a problem other's 
don't.
If a user comes with an DHCPREQUEST:

08:20:22 intranet dhcpd: DHCPREQUEST for 192.168.178.22 from 
00:16:41:59:25:ec via eth0: unknown lease 192.168.178.22.

then, he gets no answer. (authoritative; is set)

Later, 30 seconds, the clients tried again, but:

Dec 10 08:20:55 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed

This message apears several time in the next hour, until:

Dec 10 09:09:26 intranet dhcpd: DHCPOFFER on 131.152.195.216 to 
00:16:41:59:25:ec (lphoffmann) via eth0
Dec 10 09:09:26 intranet dhcpd: DHCPREQUEST for 131.152.195.216 
(131.152.195.23) from 00:16:41:59:25:ec (lphoffmann) via eth0
Dec 10 09:09:26 intranet dhcpd: DHCPACK on 131.152.195.216 to 
00:16:41:59:25:ec (lphoffmann) via eth0

What's going on?

Maybe this is interesting to, one minute before the client gets his IP, 
this appears in the log:

Dec 10 09:08:52 intranet dhcpd: Wrote 0 deleted host decls to leases file.
Dec 10 09:08:52 intranet dhcpd: Wrote 0 new dynamic host decls to leases 
file.
Dec 10 09:08:52 intranet dhcpd: Wrote 112 leases to leases file.

What does this mean?


This is the full log, grepped the MAC address of the problem Laptop:

cat syslog | grep "Dec 10 " | grep dhcpd | grep 00:16:41:59:25:ec

Dec 10 08:20:22 intranet dhcpd: DHCPREQUEST for 192.168.178.22 from 
00:16:41:59:25:ec via eth0: unknown lease 192.168.178.22.
Dec 10 08:20:27 intranet dhcpd: DHCPREQUEST for 192.168.178.22 from 
00:16:41:59:25:ec via eth0: unknown lease 192.168.178.22.
Dec 10 08:20:35 intranet dhcpd: DHCPREQUEST for 192.168.178.22 from 
00:16:41:59:25:ec via eth0: unknown lease 192.168.178.22.
Dec 10 08:20:55 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:21:19 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:21:24 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:21:32 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:21:48 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:24:14 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:24:18 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:24:25 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:24:42 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:25:19 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:25:23 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:25:31 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:25:48 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:29:05 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:29:08 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:29:16 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:29:31 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:30:26 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:30:55 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:32:42 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:33:11 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:33:49 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:33:54 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:34:03 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:34:19 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:39:21 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:39:24 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:39:31 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:39:47 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:40:33 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:40:33 intranet dhcpd: DHCPREQUEST for 192.168.0.185 
(192.168.0.1) from 00:16:41:59:25:ec via eth0: wrong network.
Dec 10 08:40:33 intranet dhcpd: DHCPNAK on 192.168.0.185 to 
00:16:41:59:25:ec via eth0
Dec 10 08:40:34 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:40:38 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:40:46 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:41:02 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:41:33 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:41:48 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:42:26 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:42:33 intranet dhcpd: DHCPRELEASE of 0.0.0.0 from 
00:16:41:59:25:ec via eth0 (not found)
Dec 10 08:42:34 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:43:00 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:43:36 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:43:39 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:43:47 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:44:03 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:44:40 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:44:45 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:44:54 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:45:10 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:50:59 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:51:02 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:51:10 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:51:25 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 08:57:07 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 09:03:35 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via 
eth0: booting disallowed
Dec 10 09:09:26 intranet dhcpd: DHCPDISCOVER from 00:16:41:59:25:ec via eth0
Dec 10 09:09:26 intranet dhcpd: DHCPOFFER on 131.152.195.216 to 
00:16:41:59:25:ec (lphoffmann) via eth0
Dec 10 09:09:26 intranet dhcpd: DHCPREQUEST for 131.152.195.216 
(131.152.195.23) from 00:16:41:59:25:ec (lphoffmann) via eth0
Dec 10 09:09:26 intranet dhcpd: DHCPACK on 131.152.195.216 to 
00:16:41:59:25:ec (lphoffmann) via eth0
Dec 10 11:09:26 intranet dhcpd: DHCPREQUEST for 131.152.195.216 from 
00:16:41:59:25:ec (lphoffmann) via eth0
Dec 10 11:09:26 intranet dhcpd: DHCPACK on 131.152.195.216 to 
00:16:41:59:25:ec (lphoffmann) via eth0
Dec 10 13:09:26 intranet dhcpd: DHCPREQUEST for 131.152.195.216 from 
00:16:41:59:25:ec (lphoffmann) via eth0
Dec 10 13:09:26 intranet dhcpd: DHCPACK on 131.152.195.216 to 
00:16:41:59:25:ec (lphoffmann) via eth0



Thank you, Simon



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