silently neglected requests fixed by restarting dhcpd

[Gordon A. Lang]

This is what I have:

Solaris 10 running dhcpd version 3.0.3 in a "whole root zone," which is 
Sun's terminology for their virtual-machine-like technology that is standard 
with Solaris 10.
host address 192.168.104.11 (with 32 bit netmask) bound to a loopback 
interface on Solaris box.
static route on routers direct 192.168.104.11/32 packets to the server's 
native address, which is 10.104.0.11.
two local routers running HSRP on all layer-3 interfaces, plus one router at 
each remote site.
all routers have "ip helper-address 192.168.104.11" configurations on all 
VLAN's.

10 networks are across a WAN
1 local wireless and two remote wireless LAN's
all other networks are local LAN's

The dhcpd.leases file is 4.5 MB, mostly full of "binding state backup" 
entries, although we stopped using the failover protocol.


Excerpt from dhcpd.conf:

server-identifier 192.168.104.11;
local-address 192.168.104.11;
subnet 192.168.104.11 netmask 255.255.255.255 { }

option option-62 code 62 = string;
option next-server code 66 = string;
option filename code 67 = string;
option option-98 code 98 = string;
option option-116 code 116 = boolean;
option option-117 code 117 = unsigned integer 16;
option option-119 code 119 = string;
option option-120 code 120 = string;
option option-121 code 121 = string;
option option-150 code 150 = array of ip-address;
option option-176 code 176 = string;

ddns-update-style interim;
min-lease-time 864000 ;
default-lease-time 864000 ;
ping-check True ;
ddns-updates True ;
ping-timeout 3 ;
max-lease-time 864000 ;
 authoritative ;

subnet 10.3.0.0 netmask 255.255.0.0 {
        option netbios-node-type 8 ;
        option domain-name-servers 10.105.3.35 , 10.105.3.37 ;
        option netbios-name-servers 10.106.30.201 , 10.106.30.200 ;
        option time-servers 10.106.1.30 ;
        option slp-directory-agent true 10.106.2.50 ;
        option subnet-mask 255.255.0.0 ;
        option routers 10.3.1.1 ;
        option domain-name "mycompany.com" ;
        option slp-service-scope true "scope1" ;

        pool { range 10.3.4.2 10.3.4.11; }
        pool { range 10.3.4.13 10.3.4.24; }

### 29 other "pool" lines not shown

        pool { range 10.3.6.11 10.3.8.10; }
        pool { range 10.3.8.12 10.3.10.250; }

        host null-0002A52F2878 { hardware ethernet 00:02:A5:2F:28:78; 
fixed-address 10.3.3.21; }
        host null-00065BD10DB1 { hardware ethernet 00:06:5B:D1:0D:B1; 
fixed-address 10.3.3.25; }

### 84 other "host" lines not shown

        host null-0003BADC0CD5 { hardware ethernet 00:03:BA:DC:0C:D5; 
fixed-address 10.3.20.23; }
        host null-001143343840 { hardware ethernet 00:11:43:34:38:40; 
fixed-address 10.3.20.56; }
}

### 44 other similar subnets not shown



--
Gordon A. Lang


----- Original Message ----- 
From: "Glenn Satchell" <Glenn.Satchell at uniq.com.au>
To: <dhcp-users at isc.org>
Sent: Tuesday, May 09, 2006 1:16 PM
Subject: Re: silently neglected requests fixed by restarting dhcpd


>
>>From: "Gordon A. Lang" <glang at goalex.com>
>>To: <dhcp-server at isc.org>
>>Subject: silently neglected requests fixed by restarting dhcpd
>>Date: Tue, 9 May 2006 10:16:42 -0400
>>
>>I'm looking for some help.
>>We started using dhcpd 3.0.3 on March 28, 2006 for 15 out of our 45 VLAN's 
>>and
>> it worked fine for a few weeks.  The other 30 VLAN's continued to be 
>> serviced by
>> our Microsoft DHCP server.
>> [ ... Deleted... ]
>>Any ideas?
>
> Got any log files showing the error messages? Posting a section from
> your dhcpd.conf (we don't really need to see 45 subnet declarations)
> and a brief description of your platform and network layout might help
> us too.
>
> Without specific errors it could be anything. Although 45 VLANs doesn't
> sound that it would be an overload - I seem to remember users who had
> several 10s of thousands of hosts running from one DHCP server.
>
> regards,
> -glenn