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# Basic examples
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lease 192.168.122.2 {
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starts 6 2014/07/12 10:08:29;
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binding state active;
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next binding state free;
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hardware ethernet 00:aa:bb:cc:dd:ee;
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}
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host ten.example.com {
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dynamic;
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hardware ethernet 10:10:10:10:10:10;
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fixed-address 192.168.122.10;
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supersede host-name = "ten.example.com";
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}
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# Reservation that is deleted
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host deleted.example.com {
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dynamic;
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hardware ethernet 10:10:10:10:20:20;
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fixed-address 192.168.122.20;
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supersede host-name = "deleteme.example.com";
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}
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host deleted.example.com {
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dynamic;
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deleted;
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}
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# Reservation that is deleted and then undeleted with same name
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host undeleted.example.com {
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dynamic;
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hardware ethernet 10:10:10:10:30:30;
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fixed-address 192.168.122.30;
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supersede host-name = "undeleted.example.com";
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}
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host undeleted.example.com {
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dynamic;
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deleted;
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}
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host undeleted.example.com {
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dynamic;
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hardware ethernet 10:10:10:10:30:30;
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fixed-address 192.168.122.35;
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supersede host-name = "undeleted.example.com";
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}
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# Missing or no IP address in the fixed-address field
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host host.domain {
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hardware ethernet 00:01:02:84:12:ab;
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fixed-address host1.sub.domain.com;
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}
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host test.domain {
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hardware ethernet 00:50:56:84:30:63;
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}
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# The following six leases are from booting a real-world DELL hardware with
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# PXE using Foreman Discovery. Fist, a BIOS/UEFI DHCP request is sent along
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# with an UID:
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lease 192.168.122.81 {
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starts 4 2014/10/16 10:14:40;
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ends 4 2014/10/16 10:24:40;
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tstp 4 2014/10/16 10:24:40;
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cltt 4 2014/10/16 10:14:40;
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binding state free;
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hardware ethernet ec:f4:bb:c6:ca:fe;
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}
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lease 192.168.122.81 {
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starts 4 2014/10/16 12:53:16;
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ends 4 2014/10/16 13:03:16;
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cltt 4 2014/10/16 12:53:16;
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binding state active;
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next binding state free;
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hardware ethernet ec:f4:bb:c6:ca:fe;
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uid "\000DELLX\000\020W\200L\310\300O022";
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}
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# And it is released by the client.
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lease 192.168.122.81 {
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starts 4 2014/10/16 12:53:16;
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ends 4 2014/10/16 12:54:03;
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tstp 4 2014/10/16 12:54:03;
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cltt 4 2014/10/16 12:53:16;
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binding state free;
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hardware ethernet ec:f4:bb:c6:ca:fe;
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uid "\000DELLX\000\020W\200L\310\300O022";
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}
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# Then Dracut acquires another lease, now without the UID:
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lease 192.168.122.88 {
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starts 4 2014/10/16 12:54:03;
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ends 4 2014/10/16 13:04:03;
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cltt 4 2014/10/16 12:54:03;
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binding state active;
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next binding state free;
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hardware ethernet ec:f4:bb:c6:ca:fe;
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}
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# And then OS acquires another lease, now without the UID but with
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# a client-hostname set:
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lease 192.168.122.89 {
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starts 4 2014/10/16 12:55:22;
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ends 4 2014/10/16 13:05:22;
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cltt 4 2014/10/16 12:55:22;
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binding state active;
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next binding state free;
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hardware ethernet ec:f4:bb:c6:ca:fe;
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client-hostname "localhost";
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}
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lease 192.168.122.89 {
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starts 4 2014/10/16 12:59:40;
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ends 4 2199/01/01 00:00:01;
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cltt 4 2014/10/16 12:59:40;
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binding state active;
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next binding state free;
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hardware ethernet ec:f4:bb:c6:ca:fe;
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client-hostname "localhost";
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}
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# This section should be parsed as follows:
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# .81 - free
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# .88 - free (still active, but expired to this date)
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# .89 - active (very long lease set with expiration in 2199)
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# Another real-world example when multiple leases overlap each other.
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# This must be loaded as one lease. The one that ends later wins.
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lease 192.168.122.7 {
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starts 2 2014/12/09 14:20:25;
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ends 2 2114/12/09 14:30:25;
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cltt 2 2014/12/09 14:20:25;
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binding state active;
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next binding state free;
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rewind binding state free;
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hardware ethernet 44:1e:a1:73:39:91;
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client-hostname "localhost";
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}
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lease 192.168.122.7 {
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starts 2 2014/12/09 14:25:02;
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ends 2 2114/12/09 14:35:02;
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cltt 2 2014/12/09 14:25:02;
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binding state active;
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next binding state free;
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rewind binding state free;
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hardware ethernet 44:1e:a1:73:39:91;
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client-hostname "localhost";
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}
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lease 192.168.122.7 {
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starts 2 2014/12/09 14:29:01;
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ends 2 2114/12/09 14:39:01;
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cltt 2 2014/12/09 14:29:01;
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binding state active;
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next binding state free;
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rewind binding state free;
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hardware ethernet 44:1e:a1:73:39:91;
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client-hostname "localhost";
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}
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# The same for reservations, we just need to skip dupes.
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host mac441ea173366b.example.com {
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dynamic;
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hardware ethernet 44:1e:a1:73:36:6b;
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fixed-address 192.168.122.44;
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supersede server.filename = "pxelinux.0";
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supersede server.next-server = c0:a8:00:01;
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supersede host-name = "mac441ea173366b.example.com";
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}
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host mac441ea173366b.example.com {
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dynamic;
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hardware ethernet 44:1e:a1:73:36:6b;
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fixed-address 192.168.122.44;
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supersede server.filename = "pxelinux.0";
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supersede server.next-server = c0:a8:00:01;
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supersede host-name = "mac441ea173366b.example.com";
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}
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# Reservations for a bonded interface
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host bond.example.com-01 {
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dynamic;
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hardware ethernet 44:1e:a1:73:36:10;
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fixed-address 192.168.122.43;
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supersede server.filename = "pxelinux.0";
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supersede server.next-server = c0:a8:00:01;
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supersede host-name = "bond.example.com";
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}
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host bond.example.com-02 {
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dynamic;
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hardware ethernet 44:1e:a1:73:36:11;
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fixed-address 192.168.122.43;
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supersede server.filename = "pxelinux.0";
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supersede server.next-server = c0:a8:00:01;
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supersede host-name = "bond.example.com";
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}
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# hostname set without supersede
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host bravo2.example.com {
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dynamic;
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hardware ethernet 44:1e:a1:73:36:16;
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fixed-address 192.168.122.45;
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option host-name "bravo.example.com";
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}
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# No hostname set
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host alpha.example.com {
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dynamic;
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hardware ethernet 44:1e:a1:73:36:15;
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fixed-address 192.168.122.42;
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}
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# Prevent deletion of a reserved record via expired lease
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host quux.example.org {
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dynamic;
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hardware ethernet 52:54:00:31:a3:97;
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fixed-address 192.168.122.53;
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supersede server.filename = "pxelinux.0";
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supersede server.next-server = ac:14:0a:01;
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supersede host-name = "quux.example.org";
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}
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lease 192.168.122.53 {
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starts 0 2010/04/06 15:01:31;
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ends 0 2010/04/06 16:00:09;
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tstp 0 2010/04/06 16:00:09;
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cltt 0 2010/04/06 15:01:31;
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binding state free;
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hardware ethernet 00:1d:60:a5:b1:2a;
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}
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