.\" $Id$
.\" Copyright (c) 1999 Sergei Viznyuk <sv@phystech.com>
.\"
.\" You can redistribute it and/or modify it under the terms of the
.\" GNU General Public License as published by the Free Software
.\" Foundation; either version 2, or (at your option) any later
.\" version.
.\"
.\" This program is distributed in the hope that it will be useful,
.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
.\" GNU General Public License for more details.
.\"
.\" You should have received a copy of the GNU General Public License
.\" along with this program; if not, write to the Free Software
.\" Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. 
.\"
.\" Japanese Version Copyright (c) 1999 Tatsuo SEKINE
.\"	all rights reserved.
.\"
.\" Translated on Thu 09 Dec 1999 17:39:45 JST 1999
.\"	by Tatsuo SEKINE <tsekine@isoternet.org>
.\" Updated & Modified on Sun Sep  9 15:29:08 JST 2001
.\"     by Yuichi SATO <ysato@h4.dion.ne.jp>
.\" Updated & Modified on Sat Feb 14 11:21:59 JST 2004
.\"     by Yuichi SATO <ysato444@yahoo.co.jp>
.\"
.\"WORD: lease time   ߤФ
.\"
.TH dhcpcd 8 "31 January 1998" "dhcpcd 1.3" "Linux System Manager's Manual"
.SH ̾
dhcpcd \- DHCP 饤ȥǡ
.SH 
.in +.5i
.ti -.5i
dhcpcd
\%[\-dknrBCDHNRSTY]
\%[\-t\ <timeout>]
\%[\-c\ <ExecFilePath>]
\%[-h\ <hostname>]
\%[-i\ <vendorClassID>]
\%[-I\ <clientID>]
\%[\-l\ <leasetime>]
\%[\-s\ [ipaddr]]
\%[\-G\ [gateway]]
\%[\-w\ <windowsize>]
\%[\-L\ <ConfigDir>]
\%[interface]
.in -.5i
.SH 
.B dhcpcd

.B RFC2131
(-r ץ󤬻ꤵʤä) 
.B RFC1541
(-r ץ󤬻ꤵ줿) ˴Ť DHCP 饤ȤμǤ롣

DHCP ФۥȤξ (IP ɥ쥹ͥåȥޥ
֥ɥ㥹ȥɥ쥹ʤ) 
ΥޥΥͥåȥ󥿥եꤹ롣
ޤ
.B RFC2131
ޤ
.B RFC1541
(obsolete;Ǥѻߤ줿) ˴ŤߤФ (lease time) 
褦Ȼߤ롣

.SH ץ
.TP
.BI \-d
Υե饰ˤ
.B dhcpcd
ϡƼ¹ԥƥåפȤ syslog(LOG_DEBUG,...) ǥϤ롣
ޤ¿νϤϹԤʤ
꤬ˤϲ礭ʽȤʤΤǡ
ΥץѤ侩롣
.B dhcpcd
ϡνϤ syslog ǽʬ (facility)
.I LOCAL0
Ȥ
.B dhcpcd
ΥǥХåϤªˤϡ
.I /etc/syslog.conf
ե

local0.*     /var/log/dhcpcd.log

ȤԤɲä

kill -1 `cat /var/run/syslogd.pid`

ˤä syslogd ǡեå夹뤳ȡ

.TP
.BI \-k
ưƤ
.B dhcpcd
ץ
.B SIGHUP
ʥ롣
.B SIGHUP
ʥ
.B dhcpcd
ȡ
.B DHCP_RELEASE
å򥵡Фꡢdhcpcd Υå˴롣
.B SIGTERM
ʥϡ̡ƥƵư
.BR shutdown (8)
뤬Υʥ
.B dhcpcd
äϡ
.B dhcpcd

.B DHCP_RELEASE
å餺å˴ʤ
ƥƥबư
.B dhcpcd
ϡƥब DHCP ФƤƤΤ
Ʊ IP ɥ쥹׵᤹뤿ˡåѤ롣
.TP
.BI \-n
ưƤ
.B dhcpcd
ץ
.B SIGALRM
ʥꡢߤФ֤򹹿롣
.B dhcpcd
ƯƤʤϡΥե饰̵뤵졢̾εư 
.B dhcpcd
ư롣
.TP
.BI \-r
dhcpcd  RFC1541 (obsolete) ư
.B dhcpcd
ϤΥץ󤬻ꤵʤ¤ RFC2131 ˽򤹤롣
.TP
.BI \-B
DHCP Ф˥֥ɥ㥹ȤǤα׵᤹롣
.TP
.BI \-C
dhcpcd ˼ѥåȤΥå (checksum) ׻롣
.TP
.BI \-D
.B dhcpcd
ФơΥޥΥɥᥤ̾
DHCP Ф󶡤ɥᥤ̾ץ
(domainname option) ꤵ롣
.TP
.BI \-H
.B dhcpcd
ФơΥޥΥۥ̾
DHCP Ф󶡤ۥ̾ץ
(hostname option) ꤵ롣
ǥեȤǤ
.B dhcpcd
ϤΥޥΥۥ̾
DHCP Фäۥ̾ץˤꤷʤ
.TP
.BI \-L \ <ConfigDir>
.B dhcpcd
ϡǼ뤿ˡǥեȤ
.I /etc/dhcpc
ǤϤʤ
.I <ConfigDir>
ǥ쥯ȥȤ
.TP
.BI \-S
.B dhcpcd
ǽ DHCP_DISCOVER åФ
DHCP_OFFER åǤäƤ⡢
2 ܤ DHCP_DISCOVER å롣
֥饤Ȥ DHCP_REQUEST 
2 ܤ DHCP_DISCOVER פȲꤷƤ DHCP Ф⤢롣
.TP
.BI \-R
Ǥ¸ߤե
.I /etc/resolv.conf

.B dhcpcd
֤ʤ褦ˤ롣
.TP
.BI \-Y
.B dhcpcd
¸
.I /etc/yp.conf
ե֤ʤ褦ˤ롣
\fB-D\fP ꤷʤ¤ꡢɥᥤ̾Ϲʤ
.TP
.BI \-N
.B dhcpcd
¸
.I /etc/ntp.conf
ե֤ʤ褦ˤ롣
.TP
.BI \-T
ƥѡ
.B dhcpcd
 DHCP ͥ󥷡󥹤뤬
ºݤˤϥ󥿡եꤷʤ
ե
.I <ConfigDir>/dhcpcd-<interface>.info

.I <ConfigDir>/dhcpcd-<interface>.cache
񤭹ߡ
.I <ConfigDir>/dhcpcd.exe
ץȤ¹Ԥ褦Ȥ롣
¹Բǽץ
.I dhcpcd.exe
Υѥ̾ϡ
.I \-c \ <ExecFilePath>
ץѹǤ롣
.B \-T
ץϼ DHCP ФΥƥȤ˻Ȥ롣
Ʊߡ󥿥եΤʣ IP ɥ쥹ꡢ
.I \-L \ <ConfigDir>

.I \-I \ <ClientID>
ץ
.TP
.BI \-t \ <timeout>
ɤ줯餤λ
.B dhcpcd
 IP ɥ쥹褦Ȼߤ뤫 (ÿ) ꤹ롣
ǥեȤ 60 á
.B dhcpcd
ϻѲǽ IP ɥ쥹ƥץ 0 ֤ޤǤ
Хå饦ɤؤ fork ʤ
.B dhcpcd
Ѳǽ IP ɥ쥹 DHCP Ф˥ॢȤϡ
.B dhcpcd
Ͽƥץؽλ 1 ֤
.TP
.BI \-c \ <ExecFilePath>
.B dhcpcd
ϥ󥿥եޤ٤ˡ
ǥեȤ
.I <ConfigDir>/dhcpcd.exe
ץȤǤϤʤ
.I <ExecFilePath>
ץȤ¹Ԥ褦Ȥ롣
Ρ\fBե\fRץˤ륹ץ
.I dhcpcd.exe
ˤĤƤ򻲾Ȥ뤳ȡ
.TP
.BI \-h \ <hostname>
.B dhcpcd
 DHCP åΥۥ̾ץ˻Ȥʸꤹ롣
饤Ȥ DHCP åǡ
ۥ̾ץ󤬻ꤵƤ뤳Ȥ׵᤹ DHCP Ф⤢
(ä˲ͥåȥǻȤ DHCP )
.TP
.BI \-i \ <vendorClassID>
٥饹̻ (vendor class identifier) ꤹ롣
ꤵʤä硢
.B dhcpcd
ϥǥեȤΥ٥饹̻ (ƥ̾ƥ꡼
ޥ󥿥) Ѥ롣
.TP
.BI \-I \ <ClientID>
饤ȼ̻ (client identifier) ꤹ롣
ꤵʤä硢
.B dhcpcd
ϥǥեȤΥ饤ȼ̻
(ͥåȥ󥿥ե MAC ɥ쥹) Ѥ롣
.TP
.BI \-l \ <leasetime>
Фؿ侩ߤФ֤ (ÿ) ꤹ롣
(ФϤͤŬڤͤؤȾ񤭤Ǥ뤳Ȥ)
ͤ
.B DHCP_DISCOVER
å˻Ȥ롣ǥեȤ̵ (0xffffffff)
.TP
.BI \-s \ [ipaddr]
DHCP_INFORM å ipaddr Ȥä DHCP Ф롣
άǽʥѥ᡼ ipaddr  xxx.xxx.xxx.xxx ȤǤʤФʤʤ
⤷ޥɥ饤 ipaddr ѥ᡼ͿʤС
.B dhcpcd
ϸߥ󥿥ե˳ƤƤ IP ɥ쥹Ѥ롣
⤷ߡ󥿥ե IP ɥ쥹ƤƤʤС
.B dhcpcd
ϥե
.I <ConfigDir>/dhcpcd-<interface>.cache
˵ϿƤ롢˳ IP ɥ쥹Ѥ롣
.TP
.BI \-G \ [gateway]
DHCP Фˤä󶡤줿ǥեȤηϩ
.B dhcpcd
˥󥹥ȡ뤵ʤ褦ˤ롣
ץǥȥ ip ɥ쥹ѥ᡼ꤵ줿硢
ǥեȤηϩȤƻȤ
.TP
.BI \-w \ <windowsize>
ȥϩΥɥꤹ롣
ǥեȤ 32768 Ǥ롣
.TP
.BI interface
ͥåȥ󥿥ե̾ (eth0, eth1 ʤ) ꤹ롣
̾ʤä硢
.B dhcpcd
ϥͥåȥ󥿥եȤ
.I eth0
Ѥ롣
.SH ե
.PD 0
.TP
.BI /etc/dhcpc
.B dhcpcd
ˤäƺ줿ե¸ΤѤǥեȤ
.I <ConfigDir>
ǥ쥯ȥꡣ
嵭
.I \-L <ConfigDir>
ץ򻲾Ȥ뤳ȡ
.PD 1
.TP
.BI <ConfigDir>/dhcpcd-<interface>.info
.B dhcpcd
ۥȾϿե롣
.I interface
ϡºݤˤ
.I eth0
Τ褦ʡdhcpcd ǴƤ
ͥåȥ󥿥ե֤̾롣
.TP
.BI <ConfigDir>/dhcpcd.exe
󥿥եޤ٤ˡ
.B dhcpcd
¹Ԥ褦Ȥ륹ץȥե롣
μ¹ԲǽץȤؤΥѥϡ
.I \-c \ <ExecFilePath>
ץѹǤ롣
.B dhcpcd

.I dhcpcd.exe
ץȤ 3 ĤΥѥ᡼Ϥ
.TP
.I dhcpcd.exe <HostInfoFilePath> <up|down|new> [-d]
ǽΥѥ᡼
.I <HostInfoFilePath>

.I dhcpcd-<interface>.info
եؤΥѥǤ롣
.I <interface>
ϡºݤˤ "eth0" Τ褦 dhcpcd ǴƤ
ͥåȥ󥿥ե֤̾롣
2 ܤΥѥ᡼
.I <up|down|new>
ϡƱ IP ɥ쥹ǥ󥿥ե夲 ("up")
 IP ɥ쥹ǥ󥿥ե夲 ("new")
󥿥ե ("down") Ȥ̣Ǥ롣
ѥ᡼
.I -d
ϡ
.B dhcpcd
ǥХåե饰
.I -d
ǵưϤ
.TP
.BI <ConfigDir>/dhcpcd-<interface>.cache
˳Ƥ줿 IP ɥ쥹ʤɤޤ७åե롣
.I <interface>
ϡºݤˤ
.I eth0
Τ褦ʡdhcpcd ǴƤ
ͥåȥ󥿥ե֤̾롣
.TP
.BI /etc/resolv.conf
饤Ȥ DNS ȥɥᥤ̾ץä
.B dhcpcd
ե롣

.B /etc/resolv.conf
¸ߤ硢Υե 
.B /etc/resolv.conf.sv
Ȥ̾ѹ졢餫ͳ
.B dhcpcd
λˤϸᤵ롣
.TP
.BI /etc/yp.conf
饤Ȥ NIS ץˡ
.B dhcpcd
ˤäƺե롣

.B /etc/yp.conf
¸ߤ硢Υե 
.B /etc/yp.conf.sv
Ȥ̾ѹ졢餫ͳ
.B dhcpcd
λˤϸᤵ롣
.TP
.BI /etc/ntp.conf
饤Ȥ NTP ץˡ
.B dhcpcd
ˤäƺե롣

.B /etc/ntp.conf
¸ߤ硢Υե 
.B /etc/ntp.conf.sv
Ȥ̾ѹ졢餫ͳ
.B dhcpcd
λˤϸᤵ롣
.TP
.BI <ConfigDir>/dhcpcd-<interface>.pid
.B dhcpcd
Υץ ID Ǽե롣
.I <interface>
ϡºݤˤ
.I eth0
Τ褦ʡdhcpcd ǴƤ
ͥåȥ󥿥ե֤̾롣
.SH Ϣ
.I Dynamic Host Configuration Protocol,
RFC2131  RFC1541 (obsolete)
.I DHCP Options and BOOTP Vendor Extensions,
RFC2132
.SH Х
.B dhcpcd
ߤФνλ¤׻Τ
.B time(3)
Ѥ롣饤Ȥμ¹˥ƥ郎ѹȡ
ߤФνλ¤ͽ¬ԲǽȤʤ롣
.SH 
.PD 0
С 1.3 ̤
.LP
Yoichi Hariguchi <yoichi@fore.com>
.LP
С 1.3
.LP
Sergei Viznyuk <sv@phystech.com>