.\"	$NetBSD: dhclient-script.8,v 1.2 2018/04/07 22:37:29 christos Exp $
.\"
.\"	Id: dhclient-script.8,v 1.4 2009/11/24 02:06:56 sar Exp 
.\"
.\" Copyright (c) 2004,2009,2016 by Internet Systems Consortium, Inc. ("ISC")
.\" Copyright (c) 1996-2003 by Internet Software Consortium
.\"
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.\" %FreeBSD: src/contrib/isc-dhcp/client/dhclient-script.8,v 1.5.2.4 2002/04/11 10:16:45 murray Exp %
.\"
.\" $FreeBSD: doc/ja_JP.eucJP/man/man8/dhclient-script.8,v 1.13 2002/05/08 03:27:27 horikawa Exp $
.TH dhclient-script 8
.SH ̾¾Î
dhclient-script - DHCP ¥¯¥é¥¤¥¢¥ó¥È¤Î¥Í¥Ã¥È¥ï¡¼¥¯ÀßÄꥹ¥¯¥ê¥×¥È
.SH ²òÀâ
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.PP
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(¾ÜºÙ¤Ï¥Õ¥Ã¥¯»²¾È)¡£
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.B ETCDIR/dhclient.conf
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.B ETCDIR/dhclient.conf
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.B make_resolv_conf
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.B /etc/resolv.conf
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.PP
make_resolv_conf ´Ø¿ô¤ÎÄêµÁ¤Î¸å¡¢¥¯¥é¥¤¥¢¥ó¥È¥¹¥¯¥ê¥×¥È¤Ï
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¥¯¥é¥¤¥¢¥ó¥È¥¹¥¯¥ê¥×¥È½ªÎ»Ä¾¸å¤Ë
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.PP
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.B CLIENTBINDIR/dhclient-script
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.B ETCDIR/dhclient-exit-hooks
¥¹¥¯¥ê¥×¥È¤Î¸ºß¤ò¸¡ºº¤·¡¢Â¸ºß¤¹¤ë¾ì¹ç¤Ë¤Ï '.' ¥³¥Þ¥ó¥É¤Ç¤³¤ì¤òµ¯Æ°¤·¤Þ¤¹¡£
dhclient-script ¤Î
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µ¯Æ°¤µ¤ì¤¿»Å»ö¤Ë¥¹¥¯¥ê¥×¥È¤¬À®¸ù¤·¤¿¾ì¹ç¤Ë¤ÏÃͤϾï¤Ë 0 ¤Ë¤Ê¤ê¤Þ¤¹¡£
dhclient-enter-hooks ¤Î¹à¤ÇÁ°½Ò¤·¤¿¤½¤Î¾¤Î´Ä¶­¤â°ú¤­·Ñ¤¬¤ì¤Þ¤¹¡£
.B ETCDIR/dhclient-exit-hooks
¤Ï exit_status ¤Ë¼ê¤ò²Ã¤¨¤Æ
dhclient-script ¤ÎÌá¤êÃͤòÊѹ¹¤Ç¤­¤Þ¤¹¡£
.SH Áàºî
dhclient ¤¬¥¯¥é¥¤¥¢¥ó¥ÈÀßÄꥹ¥¯¥ê¥×¥È¤òµ¯Æ°¤¹¤ëɬÍפ¬¤¢¤ë¤È¤­¡¢
ÍÍ¡¹¤ÊÊÑ¿ô¤ò´Ä¶­¤ËÄêµÁ¤·¤Æ¤«¤é
.B CLIENTBINDIR/dhclient-script
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¼¡¤ÎÍýͳ¤¬¸½ºßÄêµÁ¤µ¤ì¤Æ¤¤¤Þ¤¹:
MEDIUM, PREINIT, BOUND, RENEW, REBIND, REBOOT,
EXPIRE, FAIL, TIMEOUT¡£
.PP
.SH MEDIUM
DHCP ¥¯¥é¥¤¥¢¥ó¥È¤Ï¡¢¥¤¥ó¥¿¥Õ¥§¡¼¥¹¤Î¥á¥Ç¥£¥¢¥¿¥¤¥×¤ÎÀßÄê¤òµá¤á¤Æ¤¤¤Þ¤¹¡£
¥¤¥ó¥¿¥Õ¥§¡¼¥¹Ì¾¤Ï $interface ¤ÇÅϤµ¤ì¡¢¥á¥Ç¥£¥¢¥¿¥¤¥×¤Ï $medium ¤ÇÅϤµ¤ì¤Þ¤¹¡£
.SH PREINIT
DHCP ¥¯¥é¥¤¥¢¥ó¥È¤Ï¡¢
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Í×µáÄ̤ê¤Ë¥¤¥ó¥¿¥Õ¥§¡¼¥¹¤¬ÀßÄꤵ¤ì¤ë¤³¤È¤òµá¤á¤Æ¤¤¤Þ¤¹¡£
BSD ¤Î¥½¥±¥Ã¥È¥é¥¤¥Ö¥é¥ê¤ò»ÈÍѤ¹¤ë¥¯¥é¥¤¥¢¥ó¥È¤Ç¤Ï¡¢
IP ¥¢¥É¥ì¥¹ 0.0.0.0 ¤«¤Ä¥Ö¥í¡¼¥É¥­¥ã¥¹¥È¥¢¥É¥ì¥¹ 255.255.255.255 ¤Ç¡¢
¥¤¥ó¥¿¥Õ¥§¡¼¥¹¤òÀßÄꤹ¤ë¤³¤È¤ò°ÕÌ£¤·¤Þ¤¹¡£
¾¤Î¥¯¥é¥¤¥¢¥ó¥È¤Ç¤Ï¡¢
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¼Â¸½¤µ¤ì¤ë¤Ç¤·¤ç¤¦¡£
¥¤¥ó¥¿¥Õ¥§¡¼¥¹Ì¾¤Ï $interface ¤ÇÅϤµ¤ì¡¢¥á¥Ç¥£¥¢¥¿¥¤¥×¤Ï $medium ¤ÇÅϤµ¤ì¤Þ¤¹¡£
.PP
IP ¥¨¥¤¥ê¥¢¥¹¤¬ dhclient.conf ¤ÇÀë¸À¤µ¤ì¤Æ¤¤¤ë¾ì¹ç¡¢
¤³¤Î¥¢¥É¥ì¥¹¤¬ $alias_ip_address ¤ÇÅϤµ¤ì¤Þ¤¹¡£
ËÜ IP ¥¢¥É¥ì¥¹¤Ø¤Î·ÐÏ©¤È¤È¤â¤Ë¡¢
ËÜ IP ¥¢¥É¥ì¥¹¤òÂоݥ¤¥ó¥¿¥Õ¥§¡¼¥¹¤«¤éºï½ü¤¹¤ëɬÍפ¬¤¢¤ê¤Þ¤¹¡£
.SH BOUND
DHCP ¥¯¥é¥¤¥¢¥ó¥È¤Ï¡¢¿·¥¢¥É¥ì¥¹¤Ø¤Î½é´ü¤Î·ë¹ç¤ò´°Î»¤·¤Þ¤·¤¿¡£
¿·¤·¤¤ IP ¥¢¥É¥ì¥¹¤Ï $new_ip_address ¤ÇÅϤµ¤ì¡¢
¥¤¥ó¥¿¥Õ¥§¡¼¥¹Ì¾¤Ï $interface ¤ÇÅϤµ¤ì¤Þ¤¹¡£
¥á¥Ç¥£¥¢¥¿¥¤¥×¤Ï $medium ¤ÇÅϤµ¤ì¤Þ¤¹¡£
¥µ¡¼¥Ð¤«¤é³ÍÆÀ¤·¤¿¥ª¥×¥·¥ç¥ó¤Ï¡¢\fBdhcp-options\fR ¤ÇÀë¸À¤µ¤ì¤Æ¤¤¤ë
¥ª¥×¥·¥ç¥ó̾¤ÇÅϤµ¤ì¤Þ¤¹¡£
Îã³°¤È¤·¤Æ¡¢ Í­¸ú¤Ê¥·¥§¥ëÊÑ¿ô¤È¤¹¤ë¤¿¤á¤Ë
¥À¥Ã¥·¥å ('-') ¤Ï¥¢¥ó¥À¥¹¥³¥¢('_')¤ÇÃÖ¤­´¹¤¨¤é¤ì¡¢
ÊÑ¿ô̾¤Ï new_ ¤Ç³«»Ï¤·¤Þ¤¹¡£
Î㤨¤Ð¡¢¿·¤·¤¤¥µ¥Ö¥Í¥Ã¥È¥Þ¥¹¥¯¤Ï $new_subnet_mask ¤ÇÅϤµ¤ì¤Þ¤¹¡£
.PP
¥¢¥É¥ì¥¹¤ò¼ÂºÝ¤ËÀßÄꤹ¤ëÁ°¤Ë¡¢dhclient-script ¤Ï²¿¤é¤«¤ÎÊýË¡¤Ç
¤½¤Î¥¢¥É¥ì¥¹¤ËÂФ·¤Æ ARP ¤ò¹Ô¤¤¡¢ÊÖ»ö¤ò¼õ¤±¼è¤Ã¤¿¾ì¹ç¤Ë¤ÏÈó 0 ¤ÎÃͤÇ
½ªÎ»¤¹¤ë¤Ù¤­¤Ç¤¹¡£¤³¤Î¾ì¹ç¥¯¥é¥¤¥¢¥ó¥È¤Ï DHCPDECLINE ¥á¥Ã¥»¡¼¥¸¤ò¥µ¡¼¥Ð
¤ËÁ÷¿®¤·¡¢°ã¤¦¥¢¥É¥ì¥¹¤ò¼èÆÀ¤·¤Þ¤¹¡£
¤³¤Îºî¶È¤Ï RENEW, REBIND, REBOOT ¾õÂ֤ǤâƱÍͤ˹Ԥ¤¤Þ¤¹¤¬¡¢
ɬ¤º¤·¤âɬÍפǤϤʤ¯¡¢¼ÂºÝ¹¥¤Þ¤·¤¯¤Ê¤¤¤Ç¤·¤ç¤¦¡£
.PP
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¥Í¥Ã¥È¥ï¡¼¥¯¤Ë´Ø¤¹¤ë¿¤¯¤Î¥Ñ¥é¥á¡¼¥¿¤òÀßÄꤹ¤ëɬÍפ¬¤¢¤ë¤Ç¤·¤ç¤¦¡£
$new_domain_name ¤ª¤è¤Ó $new_domain_name_servers
(¤³¤ì¤Ë¤ÏÊ£¿ô¤Î¥µ¡¼¥Ð¤ò¶õÇò¤Ç¶èÀڤäÆÎóµó¤·¤Æ¤¢¤ë¤«¤â¤·¤ì¤Þ¤»¤ó) ¤ò»ÈÍѤ·¤Æ¡¢
¿·¤·¤¤ /etc/resolv.conf ¤òºîÀ®¤¹¤ëɬÍפ¬¤¢¤ê¤Þ¤¹¡£
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ÀÅŪ·ÐÏ©¤Ï¡¢$new_static_routes ¤ò»ÈÍѤ·¤ÆÀßÄꤹ¤ëɬÍפ¬¤¢¤ë¤«¤â¤·¤ì¤Þ¤»¤ó¡£
.PP
IP ¥¨¥¤¥ê¥¢¥¹¤¬Àë¸À¤µ¤ì¤Æ¤¤¤ë¾ì¹ç¡¢¤³¤³¤ÇÀßÄꤹ¤ëɬÍפ¬¤¢¤ê¤Þ¤¹¡£
¥¨¥¤¥ê¥¢¥¹¤Î IP ¥¢¥É¥ì¥¹¤Ï  $alias_ip_address ¤È¤·¤Æµ­½Ò¤µ¤ì¡¢
¥¨¥¤¥ê¥¢¥¹ÍѤËÀßÄꤵ¤ì¤ë¾¤Î DHCP ¥ª¥×¥·¥ç¥ó (Î㤨¤Ð¥µ¥Ö¥Í¥Ã¥È¥Þ¥¹¥¯) ¤Ï
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$new_ ¤Ç³«»Ï¤¹¤ë¤Î¤Ç¤Ï¤Ê¤¯ $alias_ ¤Ç³«»Ï¤·¤Þ¤¹¡£
¥¨¥¤¥ê¥¢¥¹¤Î IP ¥¢¥É¥ì¥¹¤¬·ë¹ç¤µ¤ì¤¿ IP ¥¢¥É¥ì¥¹ ($new_ip_address) ¤È
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.SH RENEW
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$new_ ¤Ç³«»Ï¤¹¤ëÁ´ÊÑ¿ô¤Ë²Ã¤¨¤Æ $old ¤Ç³«»Ï¤¹¤ëÊ̤ÎÊÑ¿ô¤ÎÁȤ¬¤¢¤ë¤È¤¤¤¦
Îã³°¤¬¤¢¤ê¤Þ¤¹¡£
Êѹ¹¤µ¤ì¤¿²ÄǽÀ­¤¬¤¢¤ë±Ê³Ū¤ÊÀßÄê¤Ï¡¢ºï½ü¤¹¤ëɬÍפ¬¤¢¤ê¤Þ¤¹¡£
Î㤨¤Ð¡¢·ë¹ç¤µ¤ì¤¿¥¢¥É¥ì¥¹¤ËÂФ¹¤ë¥í¡¼¥«¥ë·ÐÏ©¤¬ÀßÄꤵ¤ì¤¿¾ì¹ç¡¢
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¤½¤Î¾¤Ë¤Ä¤¤¤Æ¤Ï¡¢BOUND ¤ÈƱÍͤ˽èÍý²Äǽ¤Ç¤¹¡£
.SH REBIND
DHCP ¥¯¥é¥¤¥¢¥ó¥È¤¬¡¢¿·µ¬ DHCP ¥µ¡¼¥Ð¤ËºÆ·ë¹ç¤µ¤ì¤Þ¤·¤¿¡£
¤³¤ì¤Ï RENEW ¤ÈƱÍͤ˰·¤¨¤Þ¤¹¤¬¡¢IP ¥¢¥É¥ì¥¹¤¬ÊѤï¤Ã¤¿¾ì¹ç¤Ë¤Ï¡¢
ARP ɽ¤ò¥¯¥ê¥¢¤¹¤ëɬÍפ¬¤¢¤ê¤Þ¤¹¡£
.SH REBOOT
DHCP ¥¯¥é¥¤¥¢¥ó¥È¤Ï¡¢¥ê¥Ö¡¼¥È¸å¤Ë¸µ¤Î¥¢¥É¥ì¥¹¤òºÆ³ÍÆÀ¤¹¤ë¤³¤È¤ËÀ®¸ù¤·¤Þ¤·¤¿¡£
¤³¤ì¤Ï BOUND ¤ÈƱÍͤ˽èÍý²Äǽ¤Ç¤¹¡£
.SH EXPIRE
DHCP ¥¯¥é¥¤¥¢¥ó¥È¤Ï¥ê¡¼¥¹¹¹¿·¤È¿·µ¬¥ê¡¼¥¹³ÍÆÀ¤Ë¼ºÇÔ¤·¡¢
¥ê¡¼¥¹¤Î´ü¸Â¤¬ÀÚ¤ì¤Þ¤·¤¿¡£
ÂÐ¾Ý IP ¥¢¥É¥ì¥¹¤ò²òÊü¤¹¤ëɬÍפ¬¤¢¤ê¡¢
RENEW ¤ª¤è¤Ó REBIND ¤ÈƱÍͤˡ¢´ØÏ¢¤¹¤ë¥Ñ¥é¥á¡¼¥¿¤òºï½ü¤¹¤ëɬÍפ¬¤¢¤ê¤Þ¤¹¡£
.SH FAIL
DHCP ¥¯¥é¥¤¥¢¥ó¥È¤Ï DHCP ¥µ¡¼¥Ð¤ËÀܳ¤Ç¤­¤º¡¢
¤Þ¤¿¸¡ºº¤·¤¿ IP ¥¢¥É¥ì¥¹¤Ë¤ÏÍ­¸ú¤Ê¤â¤Î¤Ï¤¢¤ê¤Þ¤»¤ó¤Ç¤·¤¿¡£
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.SH TIMEOUT
DHCP ¥¯¥é¥¤¥¢¥ó¥È¤Ï¤É¤Î DHCP ¥µ¡¼¥Ð¤Ë¤âÀܳ¤Ç¤­¤Þ¤»¤ó¤Ç¤·¤¿¡£
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