.\"	dhclient-script.8
.\"
.\" Copyright (c) 1997 The Internet Software Consortium.
.\" All rights reserved.
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.\" modification, are permitted provided that the following conditions
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.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
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.\" 3. Neither the name of The Internet Software Consortium nor the names
.\"    of its contributors may be used to endorse or promote products derived
.\"    from this software without specific prior written permission.
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.\" THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
.\" CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
.\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
.\" DISCLAIMED.  IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
.\" CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
.\" LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
.\" USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
.\" ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
.\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" This software has been written for the Internet Software Consortium
.\" by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
.\" Enterprises.  To learn more about the Internet Software Consortium,
.\" see ``http://www.isc.org/isc''.  To learn more about Vixie
.\" Enterprises, see ``http://www.vix.com''.
.\"
.\"
.\" %FreeBSD: src/contrib/isc-dhcp/client/dhclient-script.8,v 1.5.2.2 2001/03/05 10:09:32 obrien Exp %
.\"
.\" $FreeBSD$
.TH dhclient-script 8
.SH ̾
dhclient-script - DHCP 饤ȤΥͥåȥꥹץ
.SH 
DHCP 饤ȤΥͥåȥꥹץȤϡ
뤴Ȥ \fBdhclient(8)\fR ƤӽФޤ
DHCP 饤ȤϡܥץȤѤ뤳Ȥˤꡢ
ɥ쥹׵Ωijƥ󥿥եνȡ
Ϳ줿ɥ쥹θȡ
꡼Υ󥿥եκǽԤޤ
꡼ʤä硢
ѤߤΥ꡼¸ߤʤФ򸡺뤿ܥץȤϻѤ졢
ͭʥ꡼Ƚʤäˤ⤦ 1 󤳤ΥץȤƤФޤ
.PP
ܥץȤϡɥ桼˥ޥ뤳ȤտޤƤޤ
ʥޥɬפʾ硢
 (enter) Ƚ (exit) ȤեåѤ뤳ȤDzǽȤʤޤ
(ܺ٤ϥեå)
Υեåϡ
.B /etc/resolv.conf
ˡ
饤ȤΥǥեư桼Х饤ɤǤ褦ˤޤ
.PP
Υڥ졼ƥ󥰥ƥǤϡ
饤ȤμΤưȤƤ⡢
ɸΥץȤưʤ⤷ޤ
Ūʥ桼ץȤ¸ΤΤꤹɬפ
ȤϤäȤʤȤǤ
Ūˤϡ줾Υԥ塼˸ͭΥޥ
.B /etc/dhclient.conf
ץȤǹԤ٤Ǥ
.B /etc/dhclient.conf
Υޥ̵ˤǤʤޥ䡢
ȽФΥեåλѤǤϤǤʤޥ˵Ťˤϡ
ХݡȤäƤ
.SH եå
ϻˡ饤ȥץȤϤޤؿޤδؿ
.B make_resolv_conf
Ǥꡢ
.B /etc/resolv.conf
ե뤿˻Ѥޤ
ǥեư򥪡Х饤ɤˤϡ
δؿΥեåץȤǺƤ
.PP
make_resolv_conf ؿθ塢饤ȥץȤ
¹Բǽ
.B /etc/dhclient-enter-hooks
ץȤ¸ߤ򸡺
¸ߤˤ Bourne  '.' ޥɤѤ
ܥץȤ򥤥饤ǵưޤ
ǵҤƤ뤹٤ƤδĶܥץȤǻѲǽǤꡢ
ץȤưѹɬפʾˤϴĶνƤޤ
ץȼ¹˥顼ȯ硢
exit_status ѿ 0 ͤꤹ뤳ȤǽǤꡢ
饤ȥץȽλľ
.B /sbin/dhclient-script
ϤΥ顼ɤǽλޤ
.PP
٤Ƥνδλˡ
.B /sbin/dhclient-script
ϼ¹Բǽ
.B /etc/dhclient-exit-hooks
ץȤ¸ߤ򸡺¸ߤˤ '.' ޥɤǤưޤ
λ֤ exit_status ѿϤ졢
ư줿Ż˥ץȤˤͤϾ 0 ˤʤޤ
.SH 
dhclient 饤ꥹץȤưɬפȤ
͡ѿ륷륹ץȤ /tmp ˽񤭹ߤޤ
٤Ƥξˤơ$reason ˤϥץȤưͳ̾ꤵޤ
ͳƤޤ:
MEDIUM, PREINIT, ARPCHECK, ARPSEND, BOUND, RENEW, REBIND, REBOOT,
EXPIRE, FAIL, TIMEOUT
.PP
.SH MEDIUM
DHCP 饤Ȥϡ󥿥եΥǥפƤޤ
󥿥ե̾ $interface Ϥ졢ǥפ $medium Ϥޤ
.SH PREINIT
DHCP 饤Ȥϡ
ºݤΥɥ쥹˥ѥåȤŪǡ
׵̤˥󥿥եꤵ뤳ȤƤޤ
BSD Υåȥ饤֥Ѥ륯饤ȤǤϡ
IP ɥ쥹 0.0.0.0 ĥ֥ɥ㥹ȥɥ쥹 255.255.255.255 ǡ
󥿥եꤹ뤳Ȥ̣ޤ
¾Υ饤ȤǤϡ
ºݤ IP ɥ쥹Ϳ뤳Ȥʤñ˥󥿥եꤹ뤳Ȥ
¸Ǥ礦
󥿥ե̾ $interface Ϥ졢ǥפ $medium Ϥޤ
.PP
IP ꥢ dhclient.conf Ƥ硢
Υɥ쥹 $alias_ip_address Ϥޤ
 IP ɥ쥹ؤηϩȤȤˡ
 IP ɥ쥹оݥ󥿥եɬפޤ
.SH ARPSEND
DHCP 饤Ȥϡ
Ϳ줿ɥ쥹¾ïѤƤ뤫ǧŪǡ
ܥɥ쥹 ARP ׵Ƥޤ
ˡΤǤϤޤΤǡϤޤޤ
ǧоݤ IP ɥ쥹 $new_ip_address Ϥ졢
󥿥ե̾ $interface Ϥޤ
.SH ARPCHECK
DHCP 饤Ȥϡ
ARPSEND Ѥ ARP ׵Ф̵ͭΤꤿäƤޤ
ä硢ץȤ 0 ξ֤ǽλ뤳Ȥˤꡢ
󶡤줿ɥ쥹ϴ׵ᤵƤΤǤꡢ
ݤ٤Ǥ뤳Ȥ򼨤ޤ
$new_ip_address  $interface ϡARPSEND Ʊͤꤵޤ
.SH BOUND
DHCP 饤Ȥϡɥ쥹ؤνηλޤ
 IP ɥ쥹 $new_ip_address Ϥ졢
󥿥ե̾ $interface Ϥޤ
ǥפ $medium Ϥޤ
Фץϡ\fBdhcp-options\fR Ƥ
ץ̾Ϥޤ
㳰Ȥơ ͭʥѿȤ뤿
å ('-') ϥ('_')֤졢
ѿ̾ new_ dzϤޤ
㤨С֥ͥåȥޥ $new_subnet_mask Ϥޤ
.PP
礬λȡ
ͥåȥ˴ؤ¿Υѥ᡼ꤹɬפǤ礦
$new_domain_name  $new_domain_name_servers
(ˤʣΥФǶڤä󤷤Ƥ뤫⤷ޤ) Ѥơ
 /etc/resolv.conf ɬפޤ
ǥեȷϩϡ$new_routers Ѥꤹɬפޤ
Ūϩϡ$new_static_routes Ѥꤹɬפ뤫⤷ޤ
.PP
IP ꥢƤ硢ꤹɬפޤ
ꥢ IP ɥ쥹  $alias_ip_address ȤƵҤ졢
ꥢѤꤵ¾ DHCP ץ (㤨Х֥ͥåȥޥ) 
ҤΤ褦ѿϤޤ
$new_ dzϤΤǤϤʤ $alias_ dzϤޤ
ꥢ IP ɥ쥹礵줿 IP ɥ쥹 ($new_ip_address) 
Ʊ硢ѤƤϤʤʤȤդƤ
ʤʤ顢ξˤ¾ΥꥢΥѥ᡼ʤǽ
Ǥ
.SH RENEW
礬ȡץȤ BOUND Ʊͤ˸ƤФޤ
$new_ dzϤѿ˲ä $old dzϤ̤ѿȤȤ
㳰ޤ
ѹ줿ǽ³Ūϡɬפޤ
㤨С礵줿ɥ쥹Фϩꤵ줿硢
Ťϩɬפޤ
ǥեȷϩѹ줿硢Ťǥեȷϩɬפޤ
Ūϩѹ줿硢ŤΤɬפޤ
¾ˤĤƤϡBOUND Ʊͤ˽ǽǤ
.SH REBIND
DHCP 饤Ȥ DHCP Ф˺Ʒ礵ޤ
 RENEW Ʊͤ˰ޤIP ɥ쥹Ѥäˤϡ
ARP ɽ򥯥ꥢɬפޤ
.SH REBOOT
DHCP 饤Ȥϡ֡ȸ˸Υɥ쥹Ƴ뤳Ȥޤ
 BOUND Ʊͤ˽ǽǤ
.SH EXPIRE
DHCP 饤Ȥϥ꡼ȿ꡼˼Ԥ
꡼δ¤ڤޤ
о IP ɥ쥹ɬפꡢ
RENEW  REBIND ƱͤˡϢѥ᡼ɬפޤ
.SH FAIL
DHCP 饤Ȥ DHCP Ф³Ǥ
ޤ IP ɥ쥹ˤͭʤΤϤޤǤ
Ǹ˸꡼Υѥ᡼ϡɬפޤ
ϡEXPIRE Ʊͤ˰ޤ
.SH TIMEOUT
DHCP 饤ȤϤɤ DHCP Фˤ³ǤޤǤ
ʤ顢Ť꡼̤졢
BOUND ƱͤˡθŤ꡼Υѥ᡼Ϥޤ
饤ȤꥹץȤϡΥѥ᡼򸡺
줬ͭǤȿͳʤС 0 ǽλ٤Ǥ
ǤʤʤС 0 ͤǽλ٤Ǥ
.PP
꡼򸡺̾ˡϡREBIND Ʊͤ˥ͥåȥꤷ
(ʣΥ꡼򸡺뤿˸ƤФ뤳Ȥ뤫Ǥ)
$routers ǽΥ롼 ping 뤳ȤǤ
硢
󥿥ե³ƤͥåȥФơ꡼ͭǤ
$new_static_routers ˲ä
$new_routers 󤵤Ƥ롼 ping 褦ˤʤС
Ǥ礦ߤΥץȤϤʤäƤޤ
.SH Ϣե
ڥ졼ƥ󥰥ƥФ륹ץȥե
ƤƱ⤷ޤ󤬡̤ˤϡ
ƥڥ졼ƥ󥰥ƥѤ˳ơΥץȥե뤬٤Ǥ
Internet Software Consortium  DHCP ۤ˴ޤޤ륹ץȥեϡ
client/scripts ʲۥĥ꡼ˤꡢ
ưоݥڥ졼ƥ󥰥ƥ̾ˤʤäƤޤ
.SH Х
ʣ󥿥եѤ硢
Ф󶡤ѥ᡼ƱΤ
ͤʤ褦ˤΤˡϤޤ
㤨С
ɸ dhclient-script  /etc/resolv.conf ٽ񤭴Ƥޤޤ
ʤʣΥ󥿥եꤵƤ硢
륵Ф󶡤ͤ /etc/resolv.conf 줿ˡ
̤ΥФ󶡤ͤ˽Ȥư򷫤֤ޤ
ɤΥФ󶡤ͭǤˤϡ
ºݾȤϤʤʤΤΡΤȤˤʤꤨޤ
.SH Ϣ
dhclient.conf(5), dhclient.leases(5), dhclient(8), dhcpd(8), dhcrelay(8)
.SH 
.B dhclient-script(8)
 Ted Lemon <mellon@fugue.com> 
Vixie Enterprises ȶϤ Internet Software Consortium Τ
񤭤ޤ
Internet Software Consortium ˤĤƤܤϡ
.B http://www.vix.com/isc

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