Problem using subclasses, getting no free leases

[Glenn Satchell]

Hi Marcus,

Looks like a typo in the hardware address you're trying to match :(

>class "test"
>{
>    match hardware-address;
>}
That's an invalid variable name, you need

     match hardware;

This is from the dhcp-eval man page:

      hardware

       The hardware operator returns a data  string  whose  first
       element  is  the  type  of  network interface indicated in
       packet being considered, and whose subsequent elements are
       client's  link-layer  address.    

>subclass "test" 1:00:0c:29:bb:e5:db;

in the log files the mac address is 00:0c:29:bb:e5:bd
(note last byte 'bd' in log and 'db' in dhcpd.conf), so that would be:

subclass "test" 1:00:0c:29:bb:e5:db;

The "no free leases" means "no leases match the selection
requirements".

regards,
-glenn

>Subject: Problem using subclasses, getting no free leases
>Date: Tue, 21 Mar 2006 12:05:04 +0100
From: "Uddenhed, Marcus" <marcus.uddenhed at horby.se>
>
>I can't get the use of subclasses in dhcpd.conf
>it says that there are no free leases, below are the dhcpd.conf file,
>tcpdump from the dhcpd server and the logmessages in the messages log.
> 
>What am i doing wrong.
> 
>The clients are primarily Windows machines if that could be an
>tip in the right direction on the error.
> 
>I've used the following rows to instead of the match hardware-address
>under class "test" clause.
>"match hardware;" & "match pick-first-value (option
>dhcp-client-identifier, hardware);" but with no difference
>in the outcome.
> 
>Thanks in advance
> 
>Marcus Uddenhed
> 
>dhcpd.conf:
>-----------------
> 
>authoritative;
>deny duplicates;
>deny declines;
>get-lease-hostnames on;
>one-lease-per-client on;
>ddns-update-style none;
>default-lease-time 3600;
>max-lease-time 84600;
>allow client-updates;
>boot-unknown-clients on;
> 
># test class
>class "test"
>{
>    match hardware-address;
>}
> 
>subclass "test" 1:00:0c:29:bb:e5:db;
> 
>subnet 192.168.8.0 netmask 255.255.255.224
>{
>    pool
>    {
>        option domain-name "public.local";
>        option subnet-mask 255.255.255.224;
>        range 192.168.8.10 192.168.8.20;
>        allow members of "test";
>    }
>}
> 
>tcpdump -vv:
>------------------
> 
>09:39:20.688212 IP (tos 0x0, ttl 128, id 551, offset 0, flags [none],
>proto: UDP (17), length: 328) 0.0.0.0.bootpc > 255.255.255.255.bootps:
>BOOTP/DHCP, Request from 00:0c:29:bb:e5:bd (oui Unknown), length: 300,
>xid:0x25385500, flags: [Broadcast] (0x8000)
>Client Ethernet Address: 00:0c:29:bb:e5:bd (oui Unknown) [|bootp]
>09:39:22.498040 IP (tos 0x0, ttl 128, id 552, offset 0, flags [none],
>proto: UDP (17), length: 328) 0.0.0.0.bootpc > 255.255.255.255.bootps:
>BOOTP/DHCP, Request from 00:0c:29:bb:e5:bd (oui Unknown), length: 300,
>xid:0x25385500, secs:57227, flags: [Broadcast] (0x8000)
>Client Ethernet Address: 00:0c:29:bb:e5:bd (oui Unknown) [|bootp]
>09:39:26.267276 IP (tos 0x0, ttl 128, id 553, offset 0, flags [none],
>proto: UDP (17), length: 328) 0.0.0.0.bootpc > 255.255.255.255.bootps:
>BOOTP/DHCP, Request from 00:0c:29:bb:e5:bd (oui Unknown), length: 300,
>xid:0x25385500, secs:57227, flags: [Broadcast] (0x8000)
>Client Ethernet Address: 00:0c:29:bb:e5:bd (oui Unknown) [|bootp]
>09:39:31.280183 IP (tos 0x0, ttl 128, id 554, offset 0, flags [none],
>proto: UDP (17), length: 328) 0.0.0.0.bootpc > 255.255.255.255.bootps:
>BOOTP/DHCP, Request from 00:0c:29:bb:e5:bd (oui Unknown), length: 300,
>xid:0x25385500, secs:57227, flags: [Broadcast] (0x8000)
>Client Ethernet Address: 00:0c:29:bb:e5:bd (oui Unknown) [|bootp]
> 
>messages log:
>----------------------
> 
>Mar 20 15:00:33 dhcp dhcpd: DHCPDISCOVER from 00:0c:29:bb:e5:bd via
>lnc0: network 192.168.8.0/27: no free leases
>Mar 20 15:01:51 dhcp dhcpd: DHCPDISCOVER from 00:0c:29:bb:e5:bd via
>lnc0: network 192.168.8.0/27: no free leases
>Mar 20 15:02:06 dhcp last message repeated 3 times
>Mar 20 15:04:57 dhcp dhcpd: DHCPDISCOVER from 00:0c:29:bb:e5:bd via
>lnc0: network 192.168.8.0/27: no free leases
>Mar 20 15:08:23 dhcp last message repeated 7 times
>Mar 20 15:10:15 dhcp dhcpd: DHCPDISCOVER from 00:0c:29:bb:e5:bd via
>lnc0: network 192.168.8.0/27: no free leases
>Mar 20 15:10:29 dhcp last message repeated 3 times
>Mar 20 15:13:42 dhcp dhcpd: DHCPDISCOVER from 00:0c:29:bb:e5:bd via
>lnc0: network 192.168.8.0/27: no free leases
>Mar 20 15:13:58 dhcp last message repeated 3 times
> 
>