[PLUG] crazy DHCP server log entries

["Eric at Lucii.org" <eric@lucii.org>]

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My laptop (named: "neptune" - runs Ubuntu Maverick) is connected via Ethernet
AND wireless to my LAN.

When I look at the logs on the server (where DHCP is served from) I see two
distinct patterns that *might* be problems.

1. REPEATED REQUESTS: There are hundreds of entries like this from the wireless:

Sep  4 09:30:49 polaris dhcpd: DHCPREQUEST for 10.10.10.13 from
00:1e:4c:a1:85:92 via eth0
Sep  4 09:30:49 polaris dhcpd: DHCPACK on 10.10.10.13 to 00:1e:4c:a1:85:92 via eth0
Sep  4 09:31:04 polaris dhcpd: DHCPREQUEST for 10.10.10.13 from
00:1e:4c:a1:85:92 via eth0
Sep  4 09:31:04 polaris dhcpd: DHCPACK on 10.10.10.13 to 00:1e:4c:a1:85:92 via eth0

Those are about 75 seconds about but sometimes they are much faster - 12 seconds
apart on occasion.
They go for hours and hours and then seem end like this:

Sep  4 09:32:26 polaris dhcpd: DHCPREQUEST for 10.10.10.13 from
00:1e:4c:a1:85:92 via eth0
Sep  4 09:32:26 polaris dhcpd: DHCPACK on 10.10.10.13 to 00:1e:4c:a1:85:92 via eth0
Sep  4 09:32:44 polaris dhcpd: DHCPDISCOVER from 00:1e:4c:a1:85:92 via eth0
Sep  4 09:32:44 polaris dhcpd: DHCPOFFER on 10.10.10.13 to 00:1e:4c:a1:85:92 via
eth0
Sep  4 09:32:44 polaris dhcpd: DHCPREQUEST for 10.10.10.13 (10.10.10.1) from
00:1e:4c:a1:85:92 via eth0
Sep  4 09:32:44 polaris dhcpd: DHCPACK on 10.10.10.13 to 00:1e:4c:a1:85:92 via eth0

So, apparently after repeatedly and rapidly asking for an address for HOURS it
does a DISCOVER and then is satisfied... for a while.

2. UNKNOWN LEASE - There are also hundreds of these for both the wired
10.10.10.12, and wireless 10.10.10.13:

Sep  2 14:30:38 polaris dhcpd: DHCPREQUEST for 10.10.10.13 from
00:1e:4c:a1:85:92 via eth0: unknown lease 10.10.10.13.
Sep  2 14:30:47 polaris dhcpd: DHCPREQUEST for 10.10.10.12 from
00:1c:23:fd:50:de via eth0: unknown lease 10.10.10.12.

What the heck is an "unknown lease"?

Google is not helping me with either of these.

Is this a client or server configuration issue (I'm betting client... but don't
know.)


Here is the dhcpd.conf file:
=====================================================================
authoritative;
ddns-update-style none;
option wpad-url code 252 = text;

subnet 10.10.10.0 netmask 255.255.255.0
{
    option broadcast-address    10.10.10.255;
deny bootp;
    option domain-name  "lucii.dnsalias.org";
    option domain-name-servers  10.10.10.1;
    default-lease-time          86400;
    max-lease-time              604800;
    option netbios-dd-server    10.10.10.1;
    option netbios-name-servers 10.10.10.1;
    option netbios-node-type    8;
    option subnet-mask          255.255.255.0;
    range    10.10.10.100 10.10.10.150;
    option routers 10.10.10.1;
# wpad-url disabled

}

host neptune.lucii.dnsalias.org {
    hardware ethernet 00:1c:23:fd:50:de;
    fixed-address 10.10.10.12;
}

host neptunew.lucii.dnsalias.org {
    hardware ethernet 00:1e:4c:a1:85:92;
    fixed-address 10.10.10.13;
}

=====================================================================



Thanks,
Eric
- -- 
#  Eric Lucas
#
#                "Oh, I have slipped the surly bond of earth
#                 And danced the skies on laughter-silvered wings...
#                                        -- John Gillespie Magee Jr
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