dhcpd.leases(5) File Formats Manual dhcpd.leases(5) (NAME) dhcpd.leases - DHCP (DESCRIPTION) DHCP (ISC) . (ASCII) . . dhcpd . dhcpd . DBDIR/dhcpd.leases . : touch DBDIR/dhcpd.leases . . DBDIR/dhcpd.leases~ . . DHCPv4 DHCPv6 dhcpd . . -lf . (FORMAT) (recursive descent parser) dhcpd.conf(5) dhclient.conf(5) . (group) (subgroup) (host) (failover) . OMAPI . (log- structured) . . . (rubout) . { deleted; } . . dhcpd.conf dhcpd.leases . (COMMON STATEMENTS FOR LEASE DECLARATIONS) DHCPv4 DHCPv6 . . (Dates) date db-time-format . default date : weekday year/month/day hour:minute:second (weekday) . . . . . . (UTC) . . UTC date -u . db-time-format local date : epoch ; # :: seconds-since-epoch ( << >> ) . # () . . date never . (General Variables) DDNS . DDNS . : set variable = value; set . dhcp-eval(5) . DDNS (DDNS Variables) ddns-text ddns-dhcid DNS . (text) DDNS (interim) dhcid DDNS . ddns-fwd-name DDNS A . PTR . ddns-client-fqdn DDNS FQDN FQDN ddns-client-fqdn . PTR . ddns-rev-name PTR DHCP PTR . PTR ddns-fwd-name ddns-client-fqdn. (Executable Statements) on events { statements... } on . release expiry . <<|>> . authoring-byte-order authoring-byte-order [ big-endian | little-endian ] ; . (internal byte order) . . . . . little- endian big-endian . DHCPv4 (THE DHCPv4 LEASE DECLARATION) lease ip-address { statements... } IP . . starts date; ends date; tstp date; tsfp date; atsfp date; cltt date; starts ends . tstp (failover) (peer) . tsfp failover . atsfp failover . cltt (client's last transaction time) . . hardware hardware-type mac-address; hardware MAC . . uid client-identifier; uid (client identifier) . . ARP ( ) MAC hardware . . ( ) . lease-id-format octal . client-hostname hostname ; DHCP host-name . client-hostname . DHCP host-name . binding state state; next binding state state; binding state (binding state) . DHCP failover active () free () abandoned () . failover backup failover . dhcpd.conf(5) . next binding state . ends . rewind binding state state; failover . (rewind ). option agent.circuit-id string; option agent.remote-id string; circuit ID remote ID (relay agent) relay agent information option . . vendor-class-identifier Vendor Class Identifier DHCPLEASEQUERY . bootp; reserved; failover BOOTP RESERVED ( ) . BOOTP RESERVED . . (IA) DHCPv6 (THE DHCPv6 LEASE (IA) DECLARATION) ia_ta IAID_DUID { statements... } ia_na IAID_DUID { statements... } ia_pd IAID_DUID { statements... } . ia_ta ia_na ia_pd (prefix delegation) . IAID DUID . IAID_DUID . ( ) . lease-id-format octal . cltt date; cltt . . iaaddr ipv6-address { statements... } iaprefix ipv6-address/prefix-length { statements... } iaaddr iaprefix . IPv6 IPv6 ( CIDR ). iaaddr iaprefix . binding state state; binding state . DHCPv6 active expired . preferred-life lifetime; (preferred lifetime) IPv6 . max-life lifetime; (valid lifetime) . ends date; . . . . FAILOVER (THE FAILOVER PEER STATE DECLARATION) (failover peering) failover peer : failover peer name state { my state state at date; peer state state at date; } name . (my state) failover (peer state) . : unknown-state, partner-down, normal, communications-interrupted, resolution-interrupted, potential-conflict, recover, recover-done, shutdown, paused startup. (FILES) DBDIR/dhcpd.leases DBDIR/dhcpd.leases~ (SEE ALSO) dhcpd(8), dhcp-options(5), dhcp-eval(5), dhcpd.conf(5), RFC2132, RFC2131. (AUTHORS) dhcpd(8) ISC . : https://www.isc.org dhcpd.leases(5)