.\"	dhclient.8
.\"
.\" Copyright (c) 1996-1999 Internet Software Consortium.
.\" Use is subject to license terms which appear in the file named
.\" ISC-LICENSE that should have accompanied this file when you
.\" received it.   If a file named ISC-LICENSE did not accompany this
.\" file, or you are not sure the one you have is correct, you may
.\" obtain an applicable copy of the license at:
.\"
.\"             http://www.isc.org/isc-license-1.0.html. 
.\"
.\" This file is part of the ISC DHCP distribution.   The documentation
.\" associated with this file is listed in the file DOCUMENTATION,
.\" included in the top-level directory of this release.
.\"
.\" Support and other services are available for ISC products - see
.\" http://www.isc.org for more information.
.\"
.\" Portions copyright (c) 2000 David E. O'Brien.
.\" All rights reserved.
.\" %FreeBSD: src/contrib/isc-dhcp/client/dhclient.8,v 1.8.2.3 2002/04/11 10:16:45 murray Exp %
.\"
.\" $FreeBSD: doc/ja_JP.eucJP/man/man8/dhclient.8,v 1.8 2002/05/21 03:46:48 horikawa Exp $
.\" WORD: Dynamic Host Configuration Protocol (DHCP)	ưŪۥץȥ
.\" WORD: lease			꡼ [dhclient.8]
.\" WORD: mobile host		ưۥ
.\" WORD: limited broadcast address   ߥƥåɥ֥ɥ㥹ȥɥ쥹
.\" WORD: networking framework	ͥåȥ󥰥ե졼
.\" WORD: housekeeping chores   
.TH dhclient 8
.SH ̾
dhclient - ưŪۥץȥΥ饤
.SH 
.B dhclient
[
.B -p
.I port
]
[
.B -D
]
[
.B -d
]
[
.B -q
]
[
.B -1
]
[
.B -r
]
[
.B -lf
.B lease-file
]
[
.B -pf
.I pid-file
]
[
.B -cf
.I config-file
]
[
.B -sf
.I script-file
]
[
.B -s
server
]
[
.B -g
relay
]
[
.B -n
]
[
.B -nw
]
[
.B -w
]
[
.I if0
[
.I ...ifN
]
]
.SH 
Internet Software Consortium  DHCP 饤ȤǤ dhclient
ưŪۥץȥ (DHCP: Dynamic Host Configuration Protocol)
ޤ BOOTP ץȥѤơ뤤
Υץȥ뤬Ԥˤϥɥ쥹Ū˳Ƥơ
1 İʾΥͥåȥ󥿥եꤹˡ󶡤ޤ
.SH 
.PP
DHCP ץȥǤϡ1 İʾΥ֥ͥåȤ˳Ƥ뤳ȤΤǤ
IP ɥ쥹ΥꥹȤФˡۥȤǤޤ
DHCP 饤ȤϤΥꥹȤ饢ɥ쥹׵ᤷơ
ͥåȥ̿ΰŪѤ뤳ȤǤޤ
ޤ DHCP ץȥϡǥեȥ롼ξ͡ॵФξʤɡ
饤Ȥ³Ƥͥåȥ˴ؤפʾ
饤Ȥ˾ܺ٤Τ餻뵡󶡤ޤ
.PP
ư dhclient 
.IR dhclient.conf
ؼɤ߼ޤ
줫鸽ߤΥƥȤ߹ޤƤ
٤ƤΥͥåȥ󥿥եΥꥹȤޤ
ƥ󥿥եФ dhclient  DHCP ץȥѤߤޤ
.PP
ƥ֡Ȥ䥵кƵưκݤ˥꡼򼺤ʤ褦ˡ
dhclient ϳƤ줿꡼ΥꥹȤ
dhclient.leases(5) ե¸ޤ
ưdhclient.conf եɤ߼ä塢
dhclient  dhclient.leases եɤ߹ǡ
Ƥ줿꡼˴ؤ򹹿ޤ
.PP
꡼ȡdhclient.leases եդäޤ
ե뤬ü礭ʤΤɤˡ
dhclient ϻꥳΥ꡼ǡ١
 dhclient.leases եޤ
Ť dhclient.leases եϡ
dhclient ˥ǡ١ؤޤǡ
.IR dhclient.leases~
Ȥ̾¸ޤ
.PP
dhclient ǽ˵ư줿Ȥ
(Ūˤϥƥ֡Ƚδ)  DHCP ФѤǤʤС
Ť꡼ϻĤޤ
ξ硢dhclient.leases ե뤫
ޤ¤ڤƤʤŤ꡼򸡺
ͭǤȽǤСδ¤ڤ뤫
ޤ DHCP ФѤǤ褦ˤʤޤǡΥ꡼Ȥޤ
.PP
DHCP Ф¸ߤʤͥåȥ˻ꥢɬפ
褦ʰưۥȤϡΥͥåȥθꥢɥ쥹Υ꡼
餫ɤ߹ǤȤǤޤ
DHCP ФؤΥɤʤä硢
dhclient ϤŪʥ꡼ͭǤ뤫ڤ
ͭǤм˺ƵưޤǤΥ꡼Ȥޤ
.PP
ޤưۥȤϡDHCP ѤǤʤ BOOTP ʤѤǤ褦
ͥåȥذư뤳Ȥ⤢Ǥ礦
Τ褦ʾϡŤ꡼缡⡢
ΥͥåȥδԤ̤
BOOTP ǡ١˥ȥƤ餤
Υͥåȥ᤯֡ȤǤ褦ˤȤ褤Ǥ礦
.SH ޥɥ饤
.PP
dhclient ꤷ褦Ȥͥåȥ󥿥ե̾
ޥɥ饤ǻǤޤ
ޥɥ饤ǥ󥿥ե̾ꤵʤС
dhclient Ϥ٤ƤΥͥåȥ󥿥ե̤
ǽʤ֥ɥ㥹ȥ󥿥եϽơ
줾Υ󥿥եꤷ褦Ȥޤ
.PP
.B dhclient.conf(5)
ե̾ǥ󥿥եꤹ뤳ȤǽǤ
ˡǥ󥿥եꤷ硢饤Ȥϡ
եǻꤷ󥿥ե⤷ϥޥɹԤ
ꤷ󥿥եΤɤ餫ꤹǤ礦
.PP
.B -D
ե饰ꤹȡ
.B dhclient

.B dhclient-script
Ȥ߹碌ƻѤ뤿˺ץȤ
.IR /tmp
¸ޤ
.PP
DHCP 饤Ȥɸݡ (ݡֹ 68) ʳΥݡȤ
Եɬפˤ
.B -p
ե饰Ȥޤ
Υե饰³ơdhclient Ȥ udp ݡֹꤷޤ
ϼȤƥǥХåŪǤͭѤǤ
饤ȤԵ뤿˻ѤݡȤ
ǥեȤȤϰ㤦ݡȤꤹ硢饤Ȥ
⤦ 1 ̤ݡȤѤޤݡȤϡ
ꤷݡȤ礭ֹäΤǤ
.PP
DHCP 饤Ȥϡ̾ IP ɥ쥹Ƥʤ
ǤդΥץȥåߥƥåɥ֥ɥ㥹
ɥ쥹Ǥ 255.255.255.255 ؤޤ
ǥХåŪǡФΥåɤ̤Υɥ쥹
ʤȤޤ
.B -s
ե饰θ IP ɥ쥹⤷ϥɥᥤ̾Ĥƻ
Ǥޤ
ƥŪǡDHCP 饤ȤƤΥѥåȤ
giaddr եɤ
.B -g
ե饰 IP ɥ쥹³Ѥ뤳Ȥꤹ
ȤǤޤϥƥŪλΤͭѤʤΤǤꡢ
¤Ȥ䤹ư뤳ȤꤷƤ
ޤ
.PP
DHCP 饤Ȥϡ̾磻󥿥եꤹޤǤ
ե饦ɤưθХå饦ɤư
褦ˤʤޤdhclient ˥ե饦ɤ
ץȤư뤿ˤϡ
.B -d
ե饰ꤹɬפޤϡDHCP 饤Ȥ
ǥХåΤȤưƤ䡢System V ƥ
inittab γ¦ưƤˤͭʤΤǤ
.PP
Υ饤Ȥϡ̾ϵưåɽɥ쥹
ޤɸ२顼Ϥ˥ץȥ륷󥹤
񤭽Фޤɥ쥹
.B syslog (3)
եƥѤƥåΥˤʤޤ
.B -q
ե饰Ѥȡ顼ʳΥåɸ२顼Ϥ
񤭽Фʤ褦ˤʤޤ
.PP
饤ȤϡDHCP ץȥǵ̳ŤƤʤᡢ
̾ϸ߼Ƥ꡼뤳ȤϤޤ
֥ ISP Τʤˤϡ饤Ȥ
Ƥ줿IP ɥ쥹ˤϡФ
Τ褦˵̳ŤƤȤ⤢ޤ
.B -r
ե饰ѤȡŪ˸ߤΥ꡼ä
꡼ȥ饤ȤϽλޤ
.PP
.B -1
ե饰ꤹȡ
dhclient ϤҤȤĤΥ꡼Ф 1 ٤ߤޤ
⤷˼Ԥ dhclient Ͻλ 2 ǽλޤ
.PP
DHCP 饤Ȥϡ̾
.B ETCDIR/dhclient.conf
顢꡼ǡ١
.B DBDIR/dhclient.leases
ʬΥץ ID 
.B RUNDIR/dhclient.pid
Ȥ̾Υե¸
ƥͥåȥ󥿥ե
.B CLIENTBINDIR/dhclient-script
Ѥꤷޤ
Υե̤̾ꤷꡢ̤ξ
ꤷꤹˤϡ줾
.B -cf,
.B -lf,
.B -pf

.B -sf
ե饰򡢸˥ե̾³ǻѤƤ
ˡϡ㤨 DHCP 饤ȤưȤ
.B DBDIR
⤷
.B RUNDIR
ޤޥȤƤʤˤäͭѤʤΤ
ʤޤ
.PP
DHCP 饤Ȥϡꤹ٤ͥåȥ
󥿥եƱǤʤ硢̾Ͻλޤ
åץȥåץԥ塼ۥåȥåײǽ I/O Х
äԥ塼Ǥϡ֥ɥ㥹ȥ󥿥ե
ƥ൯ưɲä뤳Ȥޤ
.B -w
ե饰ѤȡΤ褦ʥ󥿥ե 1 Ĥ
ĤʤȤˤ⥯饤Ȥλʤ褦ˤǤޤ

.B omshell (8)
ץѤơͥåȥ󥿥եɲä줿
줿ꤷȤ򥯥饤ȤΤ뤳ȤǤ
ˤäƥ饤ȤΥ󥿥ե
IP ɥ쥹ꤹ褦ߤ뤳ȤǤޤ
.PP
.B -n
ե饰Ѥ뤳ȤǡɤΥ󥿥եꤷ褦
ʤ褦 DHCP 饤Ȥؼ뤳ȤǤޤ
Υե饰ϡä
.B -w
ե饰ȶ˻ѤͭѤǤ礦
.PP
IP ɥ쥹ޤԤĤΤǤϤʤ¨¤˥ǡ
ʤ褦˥饤Ȥؼ뤳ȤǤޤ
.B -nw
ե饰ͿȲǽǤ
.SH 
dhclient.conf(5) եν񼰤̤˲⤵Ƥޤ
.SH OMAPI
 DHCP 饤Ȥϡưˤưߤ
ȤʤʬȤǤ褦ˤ뤿εǽ󶡤Ƥޤ
εǽϡ⡼ȥ֥ API Ǥ OMAPI 
Ѥ󶡤ƤޤOMAPI 饤ȤϡTCP/IP 
ѤƤ DHCP 饤Ȥ³ޤơ
DHCP 饤Ȥθߤξ֤򸡺Ǥξ֤ѹ뤳Ȥ
Ǥޤ
.PP
桼ץǤϡäˤ OMAPI ץȥľܼ
ΤǤϤʤdhcpctl API ⤷ OMAPI ΤΤѤ٤Ǥ
dhcpctl ϡOMAPI ưǹԤäƤϤʤΤĤ򰷤
åѤǤdhcpctl  OMAPI ˤĤƤ
\fBdhcpctl(3)\fR  \fBomapi(3)\fR ˵ҤƤޤ
饤ȤѤƤꤿȤΤۤȤɤϡ̤ʥץ
񤫤ʤȤ \fBomshell(1)\fR ޥɤѤľܼ¸Ǥ
ΤǤ
.SH 楪֥
楪֥ȤѤȡDHCP 饤Ȥλ
ݻƤ꡼򤹤٤Ƴ饤Ȥɲä
DNS 쥳ɤ򤹤٤ƾõ뤳ȤǤ褦ˤʤޤ
ޤ饤Ȥߤ饤ȤѤƤ
󥿥եȤǤ褦ˤʤޤ
θǡDHCP 饤ȤƵư뤳ȤǤ
󥿥եꤹ뤳ȤǤޤ̾ϥХ͡
åץȥåץԥ塼Ǥϥ꡼פ
DHCP 饤ȤߤǤ礦
ơŸäƤ DHCP 饤Ȥ
Ǥ礦뤳Ȥǡԥ塼ϥХ͡
꡼ˤ PC ɤߤƤԥ塼
ϥХ͡䥹꡼פξ֤
ٽ뤳ȤǤ褦ˤʤΤǤ
.PP
楪֥Ȥˤ° 1 ĤޤϾ°Ǥ
饤Ȥλˤϡ饤Ȥξ° 2 
ꤷޤ饤ȤϼưŪ DHCPRELEASE ԤǤ礦
饤Ȥߤˤϡ饤Ȥξ°
3 ꤷޤ饤Ȥˤϡ饤Ȥ
° 4 ꤷޤ
.SH Ϣե
.B CLIENTBINDIR/dhclient-script,
.B ETCDIR/dhclient.conf, DBDIR/dhclient.leases, RUNDIR/dhclient.pid,
.B DBDIR/dhclient.leases~
.SH Ϣ
dhclient.conf(5), dhclient.leases(5), dhclient-script(8)
.SH 
.B dhclient(8)
 Ted Lemon 
Vixie Enterprises ȶϤ Internet Software Consortium Τ
񤭤ޤ
Internet Software Consortium ˤĤƤܤϡ
.B http://www.isc.org

Vixie Enterprises ˤĤƤܤϡ
.B http://www.vix.com

.PP
ܥ饤ȤϡElliot Poger 
Stanford ؤ MosquitoNet ץȤ˻äƤ֤ˡ
Linux ǤѤ˺ݤ˽ɤԤޤ
.PP
ߤΥСϡElliot ˤ Linux Ǥβɤ餦Ȥ礭Ǥ
Internet Software Consortium  DHCP ФȤΤƱ
ͥåȥ󥰥ե졼Ѥ褦ˡTed Lemon 
ʺʬŪʽ񤭴Ԥޤ
ƥͭꥳɤʬϥ륹ץȤ˰ܤ줿Τǡ
¿Υڥ졼ƥ󥰥ƥΥݡȤäˤĤ졢
ƥͭꥳɤ򤽤Υڥ졼ƥ󥰥ƥ
ܿꤹɬפϤʤʤǤ礦
ˡ륹ץȤĶ˹äġƤӽФ
Ṳ̄Ƥޤ
.PP