NetBSD $B%*%Z%l!<%F%#%s%0%7%9%F%`(B: $B4JC1$J%,%$%I(B
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Chapter 10. $B%M%C%H%o!<%/@_Dj(B

$BL\
10.1. $B
10.2. $B?J$s$@OCBj(B

10.1. $B

10.1.1. $B%+!<%M%k@_Dj$N2

$B$3$N@a(B ($B%+!<%M%k@_Dj$N2<hubert@feyrer.de> $B$K$h$k4s9F$G$9!#(B
$B%M%C%H%o!<%/@_Dj$r$5$^$6$^$J>u67$K$"$o$;$F@_Dj$9$kA0$K!"(B $B%+!<%M%kFb$K2?$,I,MW$+!"$"$k$$$O$J$K$rF~$l$k$3$H$,$G$-$k$N$+!"(B $B$r$6$C$H8+$F$*$-$?$$$H;W$$$^$9!#%+!<%M%k$N%3%s%Q%$%k$K$D$$$F$N>\:Y$O(B Chapter 7 $B$r$4Mw$/$@$5$$!#$3$3$G$O(B $B%+!<%M%k@_Dj$N;v$K@lG0$7$^$9!#(B $B$3$3$G$O!"Nc$H$7$F(B i386/GENERIC $B%3%s%U%#%0(B $B%U%!%$%k$rMQ$$$^$9!#(B $BB>$N%W%i%C%H%[!<%`$N(B Config $B%U%!%$%k$K$b;w$?>pJs$,4^$^$l$F$$$k$O$:$G(B, $B%3%s%U%#%0%U%!%$%kCf$N%3%a%s%H$O$h$jB?$/$N%R%s%H$H$J$j$^$9!#(B $B$3$3$K=q$+$l$?>pJs$K2C$($F!"3F%+!<%M%k%*%W%7%g%s$K$D$$$F$N%I%-%e%a%s%H$O(B options(4) $B%^%K%e%"%k%Z!<%8Cf$K$"$j!"(B $B$^$?!"3F%I%i%$%P!
# $NetBSD: GENERIC,v 1.354.2.15 2001/05/06 15:18:54 he Exp $
$B3F(B config $B%U%!%$%k$N:G=i$N9T$O%P!<%8%g%s$,=q$+$l$F$$$F!"(B $B$3$l$O(B 1.354.2.15 $B$G$9!#$3$l$O(B CVS $B7PM3$G$[$+$N%P!<%8%g%s$HHf3S$7$?$j!"(B $B%P%0$,EA$($i$l$?$H$-$K;H$($^$9!#(B
options NTP # NTP phase/frequency locked loop
$B$b$7(B Network Time Protocol (NTP) $B$r;H$$$?$$$J$i!"(B $B@:EY$r9b$a$k$?$a$K$3$N%*%W%7%g%s$r;H$&$3$H$,$G$-$^$9!#(B $B$3$N%*%W%7%g%s$,L5$/$F$b!"(B NTP $B$OF0$-$^$9!#(B $B99$J$k>pJs$O(B ntpd(8) $B$r$4Mw$/$@$5$$!#(B
file-system NFS # Network File System client
$B$[$+$N5!3#$N%O!<%I%G%#%9%/$r(B $B%M%C%H%o!<%/%U%!%$%k%7%9%F%`(B (NFS)$B7PM3$G;H$$$?$$$J$i!"(B $B$3$N%*%W%7%g%s$,I,MW$G$9!#(B Section 10.2.2 $B$K(B NFS $B$K$D$$$F$N$h$j>\$7$$>pJs$,$"$j$^$9!#(B
options NFSSERVER # Network File System server
$B$3$N%*%W%7%g%s$O(B NFS $B%j%b!<%H%U%!%$%k6&M-%W%m%H%3%k(B $B$N%5!<%P!Section 10.2.2 $B$K(B NFS $B$N99$J$k(B $B>pJs$,$"$j$^$9!#(B
#options GATEWAY # packet forwarding
$B%M%C%H%o!<%/$d%M%C%H%o!<%/%$%s%?!<%U%'!<%94V$G%Q%1%C%H$N%U%)%o!<%I$r$9$k(B $B%k!<%?!<$K$7$?$1$l$P!"$3$N%*%W%7%g%s$r@_Dj$9$k$3$H$,I,MW$G$9!#(B $B%Q%1%C%H%U%)%o!<%G%#%s%0$N%9%$%C%A$@$1$G$J$/!"%P%C%U%!!<$NA}2C$b$7$^$9!#(B $B>\$7$/$O(B options(4) $B$r$4Mw$/$@$5$$!#(B
options INET # IP + ICMP + TCP + UDP
$B$3$l$G%+!<%M%kCf$N(B TCP/IP $B%3!<%I$,M-8z$K$J$j$^$9!#(B $B%M%C%H%o!<%/$r;H$o$J$$(B/$B;H$$$?$/$J$$>l9g$G$5$(!"(B X Window System $B$N$h$&$J%5%V%7%9%F%`$N%^%7%sFbIt$NDL?.$N$?$a$K(B $B$d$C$Q$jI,MW$G$7$g$&!#(B $B$h$j>\$7$$$3$H$O(B inet(4) $B$r$4Mw$/$@$5$$!#(B
options INET6 # IPV6
IPv6 $B$rMxMQ$7$?$1$l$PI,MW$G$9!#(B IPv6 $B$,$$$i$J$1$l$P!"$3$N%*%W%7%g%s$O(B NetBSD 1.5 release $B0J9_$OI8=`$G4^$^$l$F$$$k$N$G!">C$9(B/$B%3%a%s%H%"%&%H$9$k$3$H$,$G$-$^$9!#(B $BpJs$O(B inet6(4) $B%^%K%e%"%k%Z!<%8$H(B Section 9.1.7 $B$r(B $B$4Mw$/$@$5$$!#(B
#options IPSEC # IP security
$B80$H%]%j%7!<4IM}!"G'>Z!"05=L$,4^$^$l$F$$$k(B IPsec $B%W%m%H%3%k$N%5%]!<%H$r$$$l$^$9!#(B IPv4 $B$G(B IPsec $B$r;H$$$?$$$@$1$J$i!"(B $B$3$N%*%W%7%g%s$O>e$N%*%W%7%g%s!"(B INET6 $B$J$7$K;H$&$3$H$,$G$-$^$9!#(B $B$h$j>\$7$$$3$H$O(B ipsec(4) $B$r$4Mw$/$@$5$$!#(B
#options IPSEC_ESP # IP security (encryption part; define w/IPSEC)
IPsec $B$G0E9f2=$,I,MW$J$i(B IPSEC $B$K2C$($F$3$N%*%W%7%g%s$,I,MW$G$9!#(B
#options MROUTING # IP multicast routing
$B$b$7(B MBone $B%5!<%S%9$N$h$&$J%^%k%A%-%c%9%H%5!<%S%9$r%k!<%F%#%s%0$9$k$J$i!"(B $B$3$N%*%W%7%g%s$rF~$l$k$3$H$,I,MW$G$9!#Cp$H$7$F!"%k!<%F%#%s%0$=$l<+BN$O(B mrouted(8) $B%G!<%b%s$K$h$C$F@)8f$5$l$^$9!#(B
options NS # XNS #options NSIP # XNS tunneling over IP
$B$3$N%*%W%7%g%s$O(B Xerox Network Systems(tm) $B%W%m%H%3%k(B family $B$N$?$a$N$b$N$G$9!#(B $B$3$l$O(B TCP/IP $B%W%m%H%3%k%9%?%C%/$N4XO"$G$O$J$/!":#F|$G$O;H$o$l$k$3$H$O$^$l$G$9!#(B ns(4) $B%^%K%e%"%k%Z!<%8$K$$$/$i$+>\$7$$$3$H$,=q$$$F$"$j$^$9!#(B
options ISO,TPIP # OSI #options EON # OSI tunneling over IP
$B$3$N%*%W%7%g%s$O(B OSI $B%W%m%H%3%k%9%?%C%/$rF~$l$k$b$N$G!"(B $BD9$$$3$H%M%C%H%o!<%/$NA0ES$@$H8@$o$l$F$$$^$7$?!#(B $B:#F|$G$O$[$H$s$INr;K$G$9(B :-) $B99$J$k>pJs$O(B iso(4) $B%^%K%e%"%k%Z!<%8$r(B $B$4Mw$/$@$5$$!#(B
options CCITT,LLC,HDLC # X.25
$B$3$l$i$N%*%W%7%g%s$G%7%j%"%k%i%$%s>e$N%G!<%?E>Aw$G(B X.25 $B%W%m%H%3%k$r(B $B;H$($k$h$&$K$J$j$^$9!#$3$l$O(B OSI $B%W%m%H%3%k$d(B WAN $B%M%C%H%o!<%/$K4XO"$7$F(B $B:G$b$h$/;H$o$l(B $B$^$9(B/$B$^$7$?!#(B
options NETATALK # AppleTalk networking protocols
AppleTalk $B%W%m%H%3%k%9%?%C%/$N%5%]!<%H$r$7$^$9!#(B $BMxMQ$9$k$K$O%f!<%6!<%i%s%I$N%5!<%P!<%W%m%0%i%`$,I,MW$G$9!#(B pkgsrc/net/netatalk $B$d(B pkgsrc/net/netatalk-asun $B$H$$$C$?%Q%C%1!<%8$r$4Mw$/$@$5$$!#(B AppleTalk $B%W%m%H%3%k$H%W%m%H%3%k%9%?%C%/$K$D$$$F$N99$J$k>pJs$O(B atalk(4) $B%^%K%e%"%k%Z!<%8$K$"$j$^$9!#(B
options PPP_BSDCOMP # BSD-Compress compression support for PPP options PPP_DEFLATE # Deflate compression support for PPP options PPP_FILTER # Active filter support for PPP (requires bpf)
$B$3$l$i$N%*%W%7%g%s$O(B Point-to-Point $B%W%m%H%3%k$N$5$^$6$^$J(B $B$rD4@a$9$k$?$a$N$b$N$G$9!#:G=i$N(B2$B$D$O(B $BMxMQ$9$k05=L%W%m%H%3%k$r7h$a$k$b$N$G!"(B 3$B$D$a$N$O(B $B%Q%1%C%H$N%U%#%k%?%j%s%0$rM-8z$K$9$k$b$N$G$9!#(B
options PFIL_HOOKS # pfil(9) packet filter hooks options IPFILTER_LOG # ipmon(8) log support
NetBSD $B$G(B IPfilter $B$r;H$C$?%U%!%$%d!<%&%)!<%k$r$7$^$9!#(B IPfilter $B$N(B operation $B$K$D$$$F$N$h$j>\$7$$$3$H$O(B ipf(4) $B$H(B ipf(8) $B$N%^%K%e%"%k%Z!<%8$r$4Mw$/$@$5$$!#(B $B@_DjNc$O(B Section 10.2.1.1 $B$G$9!#(B
# Compatibility with 4.2BSD implementation of TCP/IP. Not recommended. #options TCP_COMPAT_42
$B$3$N%*%W%7%g%s$O!"%M%C%H%o!<%/>e$K(B 4.2BSD $B$+!"(B $B$=$N%M%C%H%o!<%/%9%?%C%/$,;H$o$l$F$$$k5!3#$,$"$k>l9g$KI,MW$G$9!#(B $B%M%C%H%o!<%/>e$K(B1$BBf0J>e(B 4.2BSD-systems $B$,$"$k$H!"(B $B@5$7$$%V%m!<%I%-%c%9%H%"%I%l%9$N@_Dj$KCm0U$9$kI,MW$,$"$j$^$9!#(B 4.2BSD $B$O%M%C%H%o!<%/$N%3!<%I$N%V%m!<%I%-%c%9%H%"%I%l%94X78$K%P%0$,$"$j!"(B $B$3$N%P%0$O!"%V%m!<%I%-%c%9%H%"%I%l%9Cf$N(B $B$9$Y$F$N%[%9%H%S%C%H$r(B "0" $B$K$9$k$3$H$r6/MW$7$^$9!#(B $B$3$N(B TCP_COMPAT_42 $B%*%W%7%g%s$G!"$3$l$,3N
options NFS_BOOT_DHCP,NFS_BOOT_BOOTPARAM
$B$3$l$i$N%*%W%7%g%s$O!"%+!<%M%k$,(B NFS $B%k!<%H%U%!%$%k%7%9%F%`$r;H$&$H8@$C$?;~$K!"(B DHCP $B$"$k$$$O(B BOOTPARAM $B%W%m%H%3%k7PM3$N%G!<%?$r8+$k$h$&$K$7$^$9!#(B $B99$J$k>pJs$O(B diskless(8) $B%^%K%e%"%k%Z!<%8$r$4Mw$/$@$5$$!#(B
# Kernel root file system and dump configuration. config netbsd root on ? type ? #config netbsd root on sd0a type ffs #config netbsd root on ? type nfs
$B$3$l$i$N9T$K!"%+!<%M%k$,$*$+$l$F$$$k%k!<%H%U%!%$%k%7%9%F%`$N(B $B>l=j$H%U%!%$%k%7%9%F%`$Nroot on tlp0 type nfs" $B$H$7$^$9!#%G%P%$%9$d%?%$%W$NBe$o$j$K(B ? $B$r;H$&$H!"(B $B%+!<%M%k$O<+J,$N$"$k>l=j$@$H(B $BH=CG$7$h$&$H$7$^$9!#(B
# ISA serial interfaces com0 at isa? port 0x3f8 irq 4 # Standard PC serial ports com1 at isa? port 0x2f8 irq 3 com2 at isa? port 0x3e8 irq 5
PPP $B$d(B SLIP $B$,;H$$$?$1$l$P(B $B%7%j%"%k%$%s%?!<%U%'!<%9(B (com) $B$,$$$/$D$+I,MW$G$9!#(B $BB>$K!"(B USB $B$d(B PCMCIA $B!"(B PUC $B$G@\B3$9$kJ}K!$b$"$j$^$9!#(B
# Network Interfaces
$B$3$N4vJ,D9$$%j%9%H$K$O$9$Y$F$N%M%C%H%o!<%/%I%i%$%P!<$,=q$+$l$F$$$^$9!#(B $B%3%a%s%H$K=>$C$F!"$D$$$F$$$k%O!<%I%&%'%"!<$KE,9g$9$k$b$N$r(B $BA*$s$G$/$@$5$$!#(B $BBgDq$N%G%P%$%9$K4X$7$F$O!"(B $B%^%K%e%"%k%Z!<%8$,$"$j$^$9!#$?$H$($P(B tlp(4), ne(4), $BEy!#(B
# MII/PHY support
$B$3$N%;%/%7%g%s$O%M%C%H%o!<%/%+!<%I$N(B media independent interfaces $B0lMw$G$9!#(B $B%O!<%H%&%'%"$K$"$o$;$?$b$N$rA*$s$G=q$$$F$/$@$5$$!#(B $B$o$+$i$J$$>l9g$O!"$9$Y$FM-8z$K$7$F$*$-!"%+!<%M%k$,$I$l$r;H$&$+8+$^$9!#(B $B99$J$k>pJs$O(B mii(4) $B%^%K%e%"%k%Z!<%8$r$4Mw$/$@$5$$!#(B
# USB Ethernet adapters aue* at uhub? port ? # ADMtek AN986 Pegasus based adapters cue* at uhub? port ? # CATC USB-EL1201A based adapters kue* at uhub? port ? # Kawasaki LSI KL5KUSB101B based adapters
USB-ethernet $B%"%@%W%?!<$OBS0hI}$OLs(B 2MBit/s $B$7$+$"$j$^$;$s$,!"(B $B$H$F$bJXMx$J$b$N$G$9!#$b$A$m$s!"$3$3$G$O07$C$F$$$J$$(B $B%O!<%I%&%'%"!<4XO"$N$[$+$N(B USB $B4XO"$N%*%W%7%g%s$bI,MW$G$9!#(B $B99$J$k>pJs$O(B $B3:Ev$9$k%^%K%e%"%k%Z!<%8$r$4Mw$/$@$5$$!#(B
# network pseudo-devices pseudo-device bpfilter 8 # Berkeley packet filter
$B$3$N5<;w%G%P%$%9$OA4$N%"%W%j%1!<%7%g%s$K$bI,MW$K$J$j$^$9!#(B $B99$J$k$3$H$O(B bpf(4) $B$r$4Mw$/$@$5$$!#(B
pseudo-device ipfilter # IP filter (firewall) and NAT
$B$3$l$O!"%U%!%$%d!<%&%)!<%k!&(B NAT (IP Masquerading) $BEy$K;H$o$l$k(B IPfilter $B$N(B $B%Q%1%C%H%U%#%k%?!pJs$O(B ipf(4) $B$H(B Section 10.2.1.1 $B$r$4Mw$/$@$5$$!#(B
pseudo-device loop # network loopback
$B$3$l$O!"%k!<%F%#%s%0F1MM!":#F|!"B?$/$N%W%m%0%i%`$,;H$C$F$$$k(B "lo0" $B%=%U%H%&%'%"%k!<%W%P%C%/%M%C%H%o!<%/%G%P%$%9$G!"(B $B:o$k$Y$-$G$O$"$j$^$;$s!#(B $B$h$j>\$7$/$O(B lo(4) $B$r$4Mw$/$@$5$$!#(B
pseudo-device ppp 2 # Point-to-Point Protocol
PPP $B$r%7%j%"%k%$%s%?!<%U%'!<%9>e!"$"$k$$$O%$!<%5%M%C%H$G(B(PPPoE) $B;H$$$?$1$l$P!"$3$N%*%W%7%g%s$,I,MW$G$9!#(B $B$3$N%$%s%?!<%U%'!<%9$N(B $B$h$j>\$7$$$3$H$O(B ppp(4) $B$r$4Mw$/$@$5$$!#(B
pseudo-device sl 2 # Serial Line IP
$B%7%j%"%k2s@~(B IP $B$O%7%s%W%k$J(B IP over (well :) serial lines $B%+%W%;%k2=$G$9!#(B $B$3$l$K$O(B IP $B%"%I%l%9%M%4%7%(!<%7%g%sEy$O4^$^$l$F$$$J$$$N$G!"(B $B:#F|$G$O!"$=$s$J$K9-$/;H$o$l$F$$$k$o$1$G$O$"$j$^$;$s!#(B sl(4) $B$r$4Mw$/$@$5$$!#(B
pseudo-device strip 2 # Starmode Radio IP (Metricom)
$B$b$7!"8E$$(B Metricon Ricochet $B%Q%1%C%HL5@~%o%$%d%l%9%M%C%H%o!<%/%G%P%$%9$r\$7$$>pJs$O(B strip(4) $B%^%K%e%"%k%Z!<%8$r$4Mw$/$@$5$$!#(B
pseudo-device tun 2 # network tunneling over tty
$B$3$N%M%C%H%o!<%/%G%P%$%9$O(B $B%M%C%H%o!<%/%Q%1%C%H$r(B $B%G%P%$%9%U%!%$%k(B /dev/tun* $B$K%H%s%M%k$9$k$N$K;H$o$l$^$9!#(B tun0 $B%$%s%?!<%U%'!<%9$K%k!<%F%#%s%0$5$l$?%Q%1%C%H$O(B /dev/tun0 $B$+$iFI$`$3$H$,$G$-!"(B tun0 $B%M%C%H%o!<%/%$%s%?!<%U%'!<%9$KAw$k$K$O(B /dev/tun0 $B$K=q$-9~$`$3$H$G$G$-$^$9!#(B $B$3$l$O!"$?$H$($P%f!<%6!<%i%s%I$G$N(B QoS $B%k!<%F%#%s%0$N\$7$/$O(B tun(4) $B$r$4Mw$/$@$5$$!#(B
pseudo-device gre 2 # generic L3 over IP tunnel
GRE $B%+%W%;%k2=$O(B IP $B>e$NG$0U$N%l%$%d!<(B 3 $B%Q%1%C%H%H%s%M%k$K;H$$$^$9!#(B $BNc$($P(B VPN$B$N
pseudo-device ipip 2 # IP Encapsulation within IP (RFC 2003)
$B0[$J$k%+%W%;%k2=%U%)!<%k%^%C%H$rMQ$$$k!"$[$+$N(B IP-in-IP $B%+%W%;%k2=%G%P%$%9!#(B $B>\$7$/$O(B ipip(4) $B%^%K%e%"%k%Z!<%8$r$4Mw$/$@$5$$!#(B
pseudo-device gif 4 # IPv[46] over IPv[46] tunnel (RFC 1933)
GIF $B%$%s%?!<%U%'!<%9$r;H$&$3$H$G%H%s%M%k$,$G$-!"(B $B$?$H$($P(B IPv6-capable uplink (ISP) $B$,L5$$$H$-(B $B@\B3@-$rF@$k$N$K;H$o$l$k(B IPv6 over IPv4 $B$J$I$,$G$-$^$9!#(B $B$[$+$NA`:n$r:.$<$k$3$H$b$G$-$^$9!#(B $B$$$/$D$+$NNc$r(B gif(4) $B%^%K%e%"%k%Z!<%8$G$4Mw$/$@$5$$!#(B
#pseudo-device faith 1 # IPv[46] tcp relay translation i/f
faith $B%$%s%?!<%U%'!<%9$O%f!<%6!<%i%s%I$G$N(B IPv6-to-IPv4 TCP $BCf7Q!"(B $B$?$H$($P(B $B%W%m%H%3%kJQ49!"$N\$7$$$3$H$O(B faith(4) $B%^%K%e%"%k%Z!<%8$r$4Mw$/$@$5$$!#(B
#pseudo-device stf 1 # 6to4 IPv6 over IPv4 encapsulation
$B$3$N%M%C%H%o!<%/%G%P%$%9$O(B $B$"$i$+$8$a@_Dj$9$kI,MW$N$J$$(B IPv6 over IPv4 $B%H%s%M%k$K;H$$$^$9!#(B $B30It8~$1$N%P%1%C%H$N%=!<%9%"%I%l%9$K(B IPv4 $B%"%I%l%9$r4^$`$3$H$G(B IPv4 $B$K$h$kLa$j$N%k!<%F%#%s%0$,$5$l$^$9!#(B $B$h$j>\$7$/$O(B stf(4) $B%^%K%e%"%k%Z!<%8$H(B Section 10.2.4 $B$r$4Mw$/$@$5$$!#(B
pseudo-device vlan # IEEE 802.1q encapsulation
$B$3$N%$%s%?!<%U%'!<%9$O(B IEEE 802.1Q $B%P!<%A%c%k(B LAN $B$N%5%]!<%H$N$?$a$N$b$N$G!"(B Ethernet $B%U%l!<%`$K(B "vlan" ID $B%?%0$rBG$D$3$H$r5v$7$^$9!#(B $B@5$7$/@_Dj$5$l$?%9%$%C%A(B($B$b$A$m$s(B VLAN $B$N%5%]!<%H$b(B)$B$r;H$&$3$H$G(B 1$B%;%C%H$H$J$k5!3#0J30$N5!3#$+$i8+$k$3$H$N$G$-$J$$(B($B%V%m!<%I%-%c%9%H$d!"$=$NB>$K$D$$$F(B) $B%P!<%A%c%k(B LAN$B$r9=C[$9$k$3$H$,$G$-$^$9!#(B $B$3$l$K4X$9$k99$J$k;v$O!"(B vlan(4) $B%^%K%e%"%k%Z!<%8$K$"$j$^$9!#(B

10.1.2. $B%M%C%H%o!<%/@_Dj%U%!%$%k$NA4BNA|(B

$B%M%C%H%o!<%/@_Dj$K;H$o$l$k%U%!%$%k$N%j%9%H$O(B $BO$K$9$G$K=P$F$*$j!"

/etc/hosts

$B%m!<%+%k%[%9%H%G!<%?%Y!<%9$N%U%!%$%k!#3F9T$K$O(B $B$o$+$C$F$$$k%[%9%H$N(B IP $B%"%I%l%9!"$=$N%[%9%HL>$H%(%$%j%"%9L>$,(B $B=q$+$l$F$$$^$9!#(B $B>.5,LO%M%C%H%o!<%/$G$O(B name server $B$r;H$o$:$K(B hosts $B%U%!%$%k$@$1$N@_Dj$G:Q$^$;$i$l$^$9!#(B

/etc/resolv.conf

$B$3$N%U%!%$%k$O(B the Internet Domain Name System $B$K(B $B%"%/%;%9$9$kJ}K!$r;XDj$7$^$9!#(B $B0lHLE*$K!"%M!<%`%5!<%P!<$N%"%I%l%9$rF~$l$^$9!#(B

/etc/ifconfig.xxx

$B$3$N%U%!%$%k$O5/F0;~$K(B $B%M%C%H%o!<%/%+!<%I$N<+F0@_Dj$r$9$k$N$K;H$o$l$^$9!#(B

/etc/mygate

$B%2!<%H%&%'%$$N(B IP $B%"%I%l%9$r=q$-$^$9!#(B

/etc/nsswitch.conf

Name service switch $B@_Dj%U%!%$%k$G$9!#$3$l$O(B $B%[%9%HL>!"%f!<%6!pJs$r4^$`(B $B$5$^$6$^$J%G!<%?%Y!<%9$N8!:wK!$r@)8f$9$k$b$N$G$9!#(B $BFC$K$3$N%U%!%$%k$G$O!"(B $B%G!<%?%Y!<%9$ND4$Y$k=gHV$r;XDj$7$^$9!#(B $B$?$H$($P$3$N9T(B:

hosts:    files dns

$B%[%9%H$N%G!<%?%Y!<%9$H$7$F(B2$B$D$N>pJs8;$r;XDj$7$F$$$F!"(B files ($B%m!<%+%k$N(B /etc/hosts $B%U%!%$%k(B) $B$H(B DNS ($B%$%s%?!<%M%C%H!&%I%a%$%s%M!<%`!&%7%9%F%`(B ) $B$G$"$j!"(B DNS $B8!:w$NA0$K(B $B%m!<%+%k$N%U%!%$%k$r8!:w$7$^$9!#(B
$BDL>o!"$3$N%U%!%$%k$r=q$-$+$($kI,MW$O$"$j$^$;$s!#(B

10.1.3. $B%$%s%?!<%M%C%H@\B3(B

$B%$%s%?!<%M%C%H@\B3$OB?$/$NPPP $B%W%m%H%3%k$G$D$J$0J}K!$K$D$$$F(B $B=q$-$^$9!#(B $B@\B3$9$k$K$O!"(B $B

$B%W%m%P%$%@!<$+$iI,MW$J>pJs$rF~
/etc/resolv.conf $B%U%!%$%k$rJT=8$7(B /etc/nsswitch.conf$B$r3NG'$7$^$9!#(B
$B$b$7(B /etc/ppp $B%G%#%l%/%H%j!<5Z$S(B /etc/ppp/peers $B%U%!%$%k$,!"$J$1$l$P:n$j$^$9!#(B
$B@\B3%9%/%j%W%H!"(B chat $B%U%!%$%k!"(B pppd $B%*%W%7%g%s%U%!%$%k$r:n$j$^$9!#(B
$B%f!<%6!<(B - $B%Q%9%o!<%IG'>Z%U%!%$%k$r:n$j$^$9!#(B

$B>e$N%j%9%H$r8+$k$H!"(B $BLLE]$G$H$F$bB?$/$N:n6H$,I,MW$K8+$($^$9!#(B $Bo$K4JC1$G(B: $B$$$/$D$+$N>.$5$$%F%-%9%H$r:n$C$?$j(B $B=q$-49$($?$j!"4JC1$J3NG'$r$9$k$@$1$G$9!#(B $B/dev/tty01 (DOS $B$N(B COM2 )$B$K$D$J$$$G$$$k$b$N$H$7$^$9!#(B

10.1.3.1. $B@\B3>pJs$rF~

$B:G=i$K!"%W%m%P%$%@!<$K@\B3$KI,MW$J>pJs$r?R$M$^$9(B $B$3$l$O(B:

$B:G4s$j$N(B POP $B$NEEOCHV9f(B
$B;H$o$l$F$$$kG'>ZK!(B
$B@\B3%f!<%6!$H%Q%9%o!<%I(B
$B%M!<%`%5!<%P!<$N(B IP $B%"%I%l%9(B

10.1.3.2. resolv.conf $B$H(B nsswitch.conf

/etc/resolv.conf $B%U%!%$%k$K$O!"%W%m%P%$%@!<$+$iCN$i$5$l$?>pJs!"(B $BFC$K(B DNS $B%"%I%l%9%5!<%P!<$N%"%I%l%9$r;XDj$9$k$3$H$,I,MW$G$9!#(B. $B$3$NNc$G$O(B 2$B$D$N(B DNS $B$O(B "194.109.123.2" $B$H(B "191.200.4.52" $B$G$9!#(B

Example 10-1. resolv.conf
nameserver 194.109.123.2 nameserver 191.200.4.52 #lookup file bind

$BCp(B: $B:G8e$N9T(B (lookup file bind) $B$O(B/etc/hosts $B%U%!%$%k$KL5$$L>A0$@$1$K(B $B%M!<%`%5!<%P!<$r;H$&$h$&$K(B $B;X<($9$k$b$N$G$9!#(B $B$3$N9T$O%3%a%s%H%"%&%H$5$l$F$$$^$9$,!"$=$l$O(B NetBSD 1.4 $B$+$i$O(B $B2?$bI,MWL5$$$+$i$G(B; $B$3$NpJs$O8=:_$G$O(B /etc/nsswitch.conf $B%U%!%$%k$K$FDj5A$7$^$9!#(B new Name Service Switch $B$G4pK\%7%9%F%`>pJs$rD4$Y$k%W%m%0%i%`$,;H$&%G!<%?%Y!<%9$N(B $B%"%/%;%9$rJQ99$7$^$9!#(B

$B$3$N(B /etc/nsswitch.conf $B%U%!%$%k$NNc$G$9!#(B

Example 10-2. nsswitch.conf
# /etc/nsswitch.conf group: compat group_compat: nis hosts: files dns netgroup: files [notfound=return] nis networks: files passwd: compat passwd_compat: nis

$BCp(B: 1$B9T!"(B "hosts:" $B$G;O$^$k9T$@$1JQ99$7$F$$$F(B; $B%[%9%HL>$N2r7h;~$K(B DNS $B$r;H$C$?8!:w$NA0$K!"(B $B%m!<%+%k$N(B hosts $B%U%!%$%k$r0z$/$h$&$K$7$^$9!#(B

10.1.3.3. pppd $BMQ$N%G%#%l%/%H%j!<$r:n$k(B

/etc/ppp $B%G%#%l%/%H%j!<$H(B /etc/ppp/peers $B%G%#%l%/%H%j!<$K(B PPP $B@\B3$N@_Dj%U%!%$%k$rCV$-$^$9!#(B $B?75,%$%s%9%H!<%k$7$?$P$C$+$j$N(B NetBSD $B$K$OB8:_$7$J$$$N$G!"(B $B:n$i$J$1$l$P$J$j$^$;$s(B (chmod 700 $B$G(B)$B!#(B

10.1.3.4. $B@\B3%9%/%j%W%H$H(B chat $B%U%!%$%k(B

$B@\B3%9%/%j%W%H$K$O(B pppd $B%3%^%s%I%i%$%s$N%Q%i%a!<%?!<$,;H$((B; $B%9%/%j%W%H$O(B /etc/ppp/peers $B$KCV$-!"(B $BIaDL$O%U%!%$%kL>$K%W%m%P%$%@!$r$D$1$^$9!#(B $B$?$H$($P!"%W%m%P%$%@!$,(B BigNet $B$G!"%W%m%P%$%@!<$N(B $B@\B3%f!<%6!$,(B alan $B$J$i(B $B@\B3%9%/%j%W%H$NNc$O(B:

Example 10-3. $B@\B3%9%/%j%W%H(B
# /etc/ppp/peers/bignet connect '/usr/sbin/chat -v -f /etc/ppp/peers/bignet.chat' noauth user alan remotename bignet.it

$B>e$NNc$G$O!"@\B3$K;H$&%9%/%j%W%H$r(B chat $B%U%!%$%k(B $B$K=q$-$^$9!#%9%/%j%W%HCf$N%*%W%7%g%s$N>\:Y$O(B pppd(8) $B%^%K%e%"%k%Z!<%8$K(B $B=q$+$l$F$$$^$9!#(B

$BCp(B: $B@\B3$KLdBj$,5/$3$C$F$$$k$J$i!"@\B3%9%/%j%W%H$Kdebug kdebug 4 $B$9$k$H!"(B $B@\B3$7$h$&$H$7$?$H$-$K%7%9%F%`$,

$B@\B3%9%/%j%W%H$O(B $BJ*M}@\B3(B ($B%b%G%`$N=i4|2=!"%@%$%d%kH/?.!"(B ...)$B$r$9$k$?$a$K(B chat $B%"%W%j%1!<%7%g%s$r8F$S=P$7$^$9!#(B chat $B$N%Q%i%a!<%?!<$O(B $B@\B3%9%/%j%W%HCf$K%$%s%i%$%s$G;XDj$G$-$^$9$,!"(B $BJL$N%U%!%$%k$KJ,$1$k$[$&$,NI$$$G$7$g$&(B $B$b$7!"(B $B$?$H$($P(B POP $B$NEEOCHV9f$,(B 02 99999999 $B$H$9$k$H(B chat $B%9%/%j%W%H$NNc$O(B:

Example 10-4. chat $B%U%!%$%k(B
# /etc/ppp/peers/bignet.chat ABORT BUSY ABORT "NO CARRIER" ABORT "NO DIALTONE" REPORT CONNECT SAY "Calling BigNet" '' ATDT0299999999 CONNECT ''

$BCp(B: chat $B%U%!%$%k$K(B $BLdBj$,$"$k$J$i!"(B cu $B%W%m%0%i%`$G

10.1.3.5. $BG'>Z(B

$BG'>Z$N4V!"(B2$B$D$N%7%9%F%`$O8_$$$KAjZ$9$k$3$H$O$J$/$F!"

login
PAP/CHAP

$B$[$H$s$I$N%W%m%P%$%@!<$,(B PAP $BG'>Z$+(B CHAP $BG'>Z$r;H$$$^$9!#(B

10.1.3.5.1. PAP/CHAP $BG'>Z(B

PAP $B$NG'>Z>pJs$O(B /etc/ppp/pap-secrets $B$KCV$+$l!"(B CHAP $B$N$O(B /etc/ppp/chap-secrets$B$KCV$+$l$^$9!#(B $B$3$l$O

user * password

$BNc$($P(B:

alan * pZY9o

$BCp(B: $B%;%-%e%j%F%#$N0Y$K(B pap-secrets $B%U%!%$%k$H(B chap-secrets $B%U%!%$%k$O(B root $B$N=jM-$K$7$F%Q!<%_%C%7%g%s$r(B "600" $B$K$7$FCV$/$Y$-$C$9!#(B

10.1.3.5.2. Login $BG'>Z(B

$B$3$NG'>ZJ}<0$O:#F|$G$O$"$^$j;H$o$l$J$/$J$j$^$7$?(B; $B$b$7%W%m%P%$%@!<$,(B login $BG'>Z$r;H$&$J$i!"(B PAP/CHAP $B%U%!%$%k$NBe$o$j$K(B chat $B%U%!%$%kCf$K%f!<%6!$H%Q%9%o!<%I$r=q$-$^$9!#(B $B$=$l$K$h$C$FBPOC<0$N%m%0%$%s$r%7%_%e%l!<%H$7$^$9!#(B $B$3$N>l9g!"(B chat $B%U%!%$%k$O$U$5$o$7$$%Q!<%_%C%7%g%s$r@_Dj$7$F$/$@$5$$!#(B

$BZ$N(B chat $B%U%!%$%k$G$9(B:

Example 10-5. login $BG'>Z$N(B chat $B%U%!%$%k(B
# /etc/ppp/peers/bignet.chat ABORT BUSY ABORT "NO CARRIER" ABORT "NO DIALTONE" '' ATDT0299999999 CONNECT '' TIMEOUT 50 ogin: alan ssword: pZY9o

**10.1.3.6. pppd $B%*%W%7%g%s(B**

pppd $B%*%W%7%g%s%U%!%$%k$N:n@.$O(B /etc/ppp/options $B$K$7$^$9(B (chmod 644)$B!#(B

Example 10-6. /etc/ppp/options
/dev/tty01 lock crtscts 57600 modem defaultroute noipdefault

$B%*%W%7%g%s$N0UL#$O(B pppd(8) $B%^%K%e%"%k%Z!<%8$r$4Mw$/$@$5$$!#(B

10.1.3.7. $B%b%G%`$N;n83(B

$B@\B3$9$kA0$K!"%b%G%`$N4JC1$J;n83$9$k$H8@$&$3$H$O(B $BNI$$9M$($G!"J*M}E*$J@\B3$H!"(B $B%3%s%T%e!<%?!<$H%b%G%`$,DL?.$G$-$k$3$H$r3NG'$7$^$7$g$&!#%F%9%H$K$O(B cu $B%W%m%0%i%`$,;H$(!"(B $B

$B/etc/uucp/port $B%U%!%$%k$r:n$j$^$9(B:
```
type modem
port modem
device /dev/tty01
speed 115200            
```
(/dev/tty01 $B$O@\B3$5$l$F$$$k%G%P%$%9$N>l=j$K9g$o$;$F(B $BBX$($F$/$@$5$$(B)
$B%b%G%`$K%3%^%s%I$NAw?.$r;O$a$k$?$a$K(B cu -p modem $B$HF~NO$7$^$9!#(B $BNc$($P(B:
```
# cu -p modem
Connected.
ATZ
OK
~.

Disconnected.
#            
```
$B>e$NNc$G$O%b%G%`$K%j%;%C%H%3%^%s%I(B (ATZ) $B$rAw$j!"(B OK $B$H1~Ez$,$"$j$^$7$?(B: $BDL?.$,$G$-$F$$$^$9!#(B cu $B$rH4$1$k$K$O!"Nc$NCf$K$"$k$h$&$K(B ~ ($B%A%k%@(B) $B$H0z$-B3$-(B . ($B%I%C%H(B) $B$rF~NO$7$F$/$@$5$$!#(B

$B%b%G%`$,F0:n$7$J$1$l$P!"@5$7$$%]!<%H$K@\B3$5$l$F$$$k$+(B $B3NG'$7$F$/$@$5$$(B ($B$D$^$j!"@5$7$$%]!<%H$KBP$7$F(B cu $B$r;H$$$^$9!#(B $B%1!<%V%k$b!"$A$g$/$A$g$/%H%i%V%k$N85$H$J$j$^$9!#(B

$BCp(B: cu $B$N5/F0;~$K(B "Permission denied" $B$H8@$&%a%C%;!<%8$,=P$k$J$i!"(B /dev/tty## $B%G%P%$%9$N=jM-

$ ls -l /dev/tty00
crw-------  1 uucp  wheel  8, 0 Mar 22 20:39 /dev/tty00

$B=jM-

$ ls -l /dev/tty00
crw-------  1 root  wheel  8, 0 Mar 22 20:39 /dev/tty00
$ cu -p modem
cu: open (/dev/tty00): Permission denied
cu: All matching ports in use

COM, com $B5Z$S(B tty

com $B$H(B COM $B!"(B tty $B$O$=$l$>$lJL$N$b$N$G$9!#(B NetBSD $B$G$O!"(B "com" $B$O%7%j%"%k%]!<%H$N%I%i%$%P!<$NL>A0$G(B ($B$3$l$O(B dmesg $B$GI=<($5$l$k$b$N(B) $B!"%]!<%H$NL>A0$O(B "tty" $B$K$J$j$^$9!#HV9f$O(B 0 $B$+$i;O$^$k$N$G!"(B com0 $B$,(B $B:G=i$N%7%j%"%k%]!<%H$N%I%i%$%P!<$K$J$j!"(B tty00 $B$H8@$&L>A0$K$J$j$^$9!#(B In the DOS $B$N@$3&$G$O!"$=$NBe$o$j$K!"(B COM1 $B$,:G=i$N%7%j%"%k%]!<%H(B ($BDL>o(B (0x3f8) $B$K3d$jEv$F$i$l$F$$$^$9(B), COM2 $B$,(B 2$BHVL\$N!"(B ... $B$H(B $B$J$j$^$9!#$=$l$f$(!"(B COM1 (DOS) $B$O(B tty00 (NetBSD) $B$KBP1~$7$^$9!#(B

10.1.3.8. Activating the link

$B=`Hw$,@0$C$?$N$G!"(B $B

# pppd call bignet

$B$3$3$G!"(B bignet $B$O(B $B$9$G$K=q$+$l$?(B $B@\B3%9%/%j%W%HL>$G$9!#(B pppd $B$N@\B3%a%C%;!<%8$r8+$k$K$O!"(B $B

# tail -f /var/log/messages

$B@ZCG$9$k$K$O!"(B pppd $B$r(B kill -HUP $B$7$F(B $B$/$@$5$$!#(B

10.1.3.9. $B@\B3$H@ZCG$K%9%/%j%W%H$rMQ$$$k(B

$B@\B3F0:n$,$-$A$s$HF0$/$J$i!"(B $BKh2s%3%^%s%I$rBG$?$:$K!"$=$l$r%9%/%j%W%H$K$7$^$7$g$&!#(B $B$3$N%9%/%j%W%H(B2$B$D$r!"Nc$($P!"(B ppp-up $B$H(B ppp-down $B$HL>IU$1$^$9!#(B

ppp-up $B$r%W%m%P%$%@!<$X@\B3$9$k$N$K;H$$(B:

Example 10-7. ppp-up
#!/bin/sh MODEM=tty01 POP=bignet if [ -f /var/spool/lock/LCK..$MODEM ]; then echo ppp is already running... else pppd call $POP tail -f /var/log/messages fi

ppp-down $B$r@\B3$r@Z$k$H$-$K;H$$$^$9(B:

Example 10-8. ppp-down
#!/bin/sh MODEM=tty01 if [ -f /var/spool/lock/LCK..$MODEM ]; then echo -f killing pppd... kill -HUP `cat /var/spool/lock/LCK..$MODEM` echo done else echo ppp is not active fi

$B$3$N(B2$B$D$N%9%/%j%W%H$NMxE@$O!"(B pppd $B$,%"%/%F%#%V$K$J$k$H(B /var/spool/lock $B%G%#%l%/%H%j!<$K(B LCK..tty01 $B%U%!%$%k$,:n$i$l$k$3$H$G!"(B $B$3$N%U%!%$%k$K$O(B pppd $B%W%m%;%9$N(B pid $B$,5-O?$5$l$F$$$^$9!#(B

$B$3$N(B2$B$D$N%9%/%j%W%H$O

# chmod u+x ppp-up ppp-down

10.1.4. Creating a small home network

$B%M%C%H%o!<%-%s%0$OJ86g$J$7$K(B Unix $B$H(B NetBSD $B$NSection 10.2.1 $B$G$O!"(B NetBSD $B%^%7%s$r%M%C%H%o!<%/$N%2!<%H%&%'%$$H$7$F(B $BF0$+$9$?$a$N@bL@$r$7$^$9(B: IPNAT $B$r;H$&$H!"(B $B%2!<%H%&%'%$%^%7%s$K$h$k(B1$BK\$N@\B3$G(B $B%M%C%H%o!<%/>e$NA4%[%9%H$,%$%s%?!<%M%C%H$KE~C#$G$-$^$9!#(B $B%M%C%H%o!<%/9=C[A0$K$9$k$3$H$O!"9XF~$9$k%M%C%H%o!<%/%+!<%I$,(B NetBSD $B$G%5%]!<%H$5$l$F$$$k$+D4::$9$k$3$H$@$1$G$9(B ( INSTALL $B%U%!%$%k$K%5%]!<%H$5$l$F$$$k%G%P%$%9$N0lMw$,$"$k$N$GD4$Y$^$9(B)$B!#(B

$B:G=i$K!"%M%C%H%o!<%/%+!<%I$,%$%s%9%H!<%k$5$l$F$$$F!"(B $B%1!<%V%k$G%O%V!"%9%$%C%A%s%0%O%V$"$k$$$OD>@\$K7R$,$l$F$$$kI,MW$,$"$j$^$9(B (Figure 10-1 $B$r$4Mw$/$@$5$$(B)$B!#(B

$Bdmesg $B%3%^%s%I$N=PNO$rD4$Y$F$/$@$5$$!#(B $B

...
ne0 at isa0 port 0x280-0x29f irq 9
ne0: NE2000 Ethernet
ne0: Ethernet address 00:c2:dd:c1:d1:21
...

$B%+!<%I$,%+!<%M%k$K8!=P$5$l$F$$$J$1$l$P!"(B $B%+!<%M%k%3%s%U%#%0%l!<%7%g%s%U%!%$%k$GM-8z$K$J$C$F$$$k$N$r%A%'%C%/$7!"(B $B%+!<%I$H%+!<%M%k$N(B IRQ $B@_Dj$,B7$C$F$$$k$N$r3N$+$a$F$/$@$5$$!#(B $BNc$($P!"$3$l$O%3%s%U%#%0%l!<%7%g%s%U%!%$%k$N(B isa NE2000 $B$N9T$G!"(B ; $B%+!<%M%k$O!"%+!<%I$,(B IRQ 9 $B$r;H$&$3$H$r4|BT$7$F$$$^$9!#(B

...
ne0 at isa? port 0x280 irq 9 # NE[12]000 ethernet cards
...

$B%+!<%I$N@_Dj$,0c$&$H!"5/F0$7$?;~!"H/8+$5$l$J$$$G$7$g$&!#(B $B$3$N>l9g!"%+!<%M%k%3%s%U%#%0%l!<%7%g%s%U%!%$%k$r=q$-49$($F(B $B?7$7$$%+!<%M%k$r%3%s%Q%$%k$9$k$+!"%+!<%I$N@_Dj$rJQ99$7$^$9(B ($B$?$$$F$$!"%;%C%H%"%C%W%G%#%9%/$r;H$&$+!"8E$$%+!<%I$G$O!"(B $B%+!<%I>e$N%8%c%s%Q!<%9%$%C%A$rJQ$($kI,MW$,$"$j$^$9(B)$B!#(B

# ifconfig ne0
ne0: flags=8822<BROADCAST,NOTRAILERS,SIMPLEX,MULTICAST> mtu 1500 media: Ethernet 10base2

$B%M%C%H%o!<%/%+!<%I$N@_Dj$N%=%U%H%&%'%"ItJ,$O$H$F$b4JC1$G$9!#(B IP $B%"%I%l%9(B "192.168.1.1" ($B$3$l$OFbIt%M%C%H%o!<%/MQ$K(B $BM=Ls$5$l$F$$$^$9(B) $B$,$=$N%+!<%I$K3d$jEv$F$i$l$^$7$?!#(B

# ifconfig ne0 inet 192.168.1.1 netmask 0xffffff00

$B$5$-$N%3%^%s%I$r$b$&0lEY7+$jJV$9$H!":#EY$OJL$N7k2L$K$J$j$^$9(B:

# ifconfig ne0
ne0: flags=8863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST> mtu 1500
          media: Ethernet 10base2
          inet 192.168.1.1 netmask 0xffffff00 broadcast 192.168.1.255

ifconfig $B$N=PNO$,JQ$o$j$^$7$?(B: the IP $B%"%I%l%9$,I=<($5$l!"(B2$B$D$N%U%i%0(B "UP" $B$H(B "RUNNING" $B$,=P$^$7$?!#(B $B%$%s%?!<%U%'!<%9$,(B "UP" $B$G$J$1$l$P!"(B $B%7%9%F%`$O%Q%1%C%H$rAw?.$7$^$;$s!#(B

$B$3$N%[%9%H$K$O(B 192.168.1.1 $B$H$$$&FbIt%M%C%H%o!<%/MQ$N(B IP $B%"%I%l%9$,M?$($i$l$^$7$?!#$3$l$O(B $B%$%s%?!<%M%C%H$+$i$OE~C#$G$-$^$;$s!#(B $B@_Dj$,=*$o$C$?$N$G!"%F%9%H$r$7$^$9(B; $B%M%C%H%o!<%/>e$K!"%"%/%F%#%V$J%[%9%H$,B>$K$"$l$P(B ping $B$G%F%9%H$,$G$-$^$9!#(B $BNc$($P!"%"%/%F%#%V$J%[%9%H$,(B 192.168.1.2 $B$H$9$k$H(B:

# ping 192.168.1.2
  PING ape (192.168.1.2): 56 data bytes
  64 bytes from 192.168.1.2: icmp_seq=0 ttl=255 time=1.286 ms
  64 bytes from 192.168.1.2: icmp_seq=1 ttl=255 time=0.649 ms
  64 bytes from 192.168.1.2: icmp_seq=2 ttl=255 time=0.681 ms
  64 bytes from 192.168.1.2: icmp_seq=3 ttl=255 time=0.656 ms
  ^C
  ----ape PING Statistics----
  4 packets transmitted, 4 packets received, 0.0% packet loss
  round-trip min/avg/max/stddev = 0.649/0.818/1.286/0.312 ms

$B$3$N@_Dj$G$O!"$5$J$/$F:Q$`$h$&$K$9$k$K$O(B 2$B$D$N$3$H$r$9$kI,MW$,$"$C$F(B: $B:G=i$K!"(B /etc/ifconfig.ne0 $B%U%!%$%k$r:n$j!"(B $B

inet 192.168.1.1 netmask 0xffffff00

$B/etc/rc.conf $B%U%!%$%k$G(B $B

auto_ifconfig=YES

/etc/hosts $B%U%!%$%k$O(B IP $B%"%I%l%9$HJ8;z$K$h$kJLL>$N%G!<%?%Y!<%9$G(B: $BFbIt%M%C%H%o!<%/$KB0$9$kA4$F$N%[%9%H$N%"%I%l%9$r=q$$$F$*$-$^$9!#(B $BNc$($P(B:

Example 10-9. /etc/hosts

#     $NetBSD: hosts,v 1.4 1997/01/09 05:33:14 mikel Exp $
#
# Host Database
# This file should contain the addresses and aliases
# for local hosts that share this file.
# It is used only for "ifconfig" and other operations
# before the nameserver is started.
#
#
127.0.0.1             localhost
#
# RFC 1918 specifies that these networks are "internal".
# 10.0.0.0    10.255.255.255
# 172.16.0.0  172.31.255.255
# 192.168.0.0 192.168.255.255

192.168.1.1   ape.insetti.net ape
192.168.1.2   vespa.insetti.net vespa
192.168.1.0   insetti.net

/etc/nsswitch.conf $B$O(B Example 10-2 $B$K@bL@$5$l$F$$$k$h$&$K(B $BJQ99$7$^$9!#(B

$BCp(B: $B$3$NNc$G$O!"%M%C%H%o!<%/%+!<%I$,%+!<%M%k$K$h$C$F(B ne0 $B$HG'<1$5$l$F$$$k$N$G!"(B /etc/ifconfig.ne0 $B$H8@$&%U%!%$%k$r:n$j$^$7$?!#(B $BB>$N%+!<%I$r;H$&>l9g$O!"(B $B%U%!%$%kL>$N(B ne0 $B$H8@$&ItJ,$r(B $B%+!<%I$K9g$o$;$FE,@Z$JL>A0$K$7$F$/$@$5$$!#(B

$BMWLs$9$k$H!"%M%C%H%o!<%/@_Dj$K$Oifconfig $B$G(B)$B!"(B $B:G8e$K!"(B /etc/hosts $B%U%!%$%k$H(B /etc/nsswitch.conf $B%U%!%$%k$rJQ99$7$^$9!#(B $B$3$No$K4JC1$G!"(B $B.5,LO%M%C%H%o!<%/$KE,$7$F$$$^$9!#(B

10.1.5. $B%7%j%"%k%1!<%V%k$G$N(B2$BBf$N%3%s%T%e!<%?!<@\B3(B

$B%M%C%H%o!<%/$K7R$$$G$$$J$$(B2$BBf$N%3%s%T%e!<%?!<4V$G%U%!%$%kE>Aw$,(B $BI,MW$J;~!"FC$K%U%m%C%T!<$r;H$C$F%U%!%$%k$r%3%T!<$9$k$N$,null modem $B%1!<%V%k(B($BLuCp(B:$B%/%m%9%1!<%V%k(B))$B$G%M%C%H%o!<%/$9$k$3$H$,$G$-$^$9!#(B $B

10.1.5.1. NetBSD $B$H(B BSD $B$d(B Linux $B$N@\B3(B

$BN>J}$N5!3#$G(B NetBSD $B$,Av$C$F$$$k>l9g(B $B$,0lHV4JC1$G(B: SLIP $B%W%m%H%3%k$G@\B3$9$k$N$,Hs>o$K4JC1$G$9!#(B 1$BBfL\$N5!3#$K

# slattach /dev/tty00
  # ifconfig sl0 inet 192.168.1.1 192.168.1.2

2$BBfL\$N5!3#$K$O!"

# slattach /dev/tty00
  # ifconfig sl0 inet 192.168.1.2 192.168.1.1

$B@\B3;n83$K$O(B ping $B$,;H$((B; $BNc$($P!"(B 2$BBfL\$N5!3#$G$3$&$7$^$9(B:

# ping 192.168.1.1

$B$3$l$,A4ItF0$$$F$$$l$P!"(B 2$BBf4V$N%M%C%H%o!<%/@\B3$,F0$$$F$$$F!"(B ftp $B$d(B telnet $B$d!"B>!"(B $BF1MM$J%3%^%s%I$r$O(B /etc/hosts $B%U%!%$%k$K=q$$$F$*$/$3$H$,$G$-$^$9!#(B

$B>e$NNc$G$O!"N>J}$N%Q%=%3%s$G:G=i$N%7%j%"%k%]!<%H(B (/dev/tty0) $B$r;H$$$^$7$?!#(B $BB>$N%]!<%H$r;H$&>l9g!"(B $B%G%P%$%9L>$rCV$-49$($F$/$@$5$$!#(B
192.168.x.x $B$H$$$C$?(BIP $B%"%I%l%9$O(B "$BFbIt(B" $B%M%C%H%o!<%/$N0Y$KM=Ls$5$l$F$$$^$9!#(B 1$BBfL\$N%Q%=%3%s$r(B 192.168.1.1 $B!"(B 2$BBfL\$K$O(B 192.168.1.2$B$K$7$^$7$?!#(B
$B@\B3$r9bB.2=$9$k$?$a$K(B slattach $B$K(B -s speed $B%*%W%7%g%s$r;XDj$G$-$^$9!#(B
inetd $B$,F0$$$F$$$F(B ftpd $B%5!<%P!<$,M-8z$K$J$C$F$$$k$@$1$G(B ftp$B$G%U%!%$%k$NE>Aw$,$G$-$^$9!#(B

Linux: 2$BBf$N$&$A(B1$BBf$,(B Linux $B5!$J$i!"(B Linux $BB&$N%3%^%s%I$,# slattach -p slip -s 115200 /dev/ttyS0 & # ifconfig sl0 192.168.1.2 pointopoint 192.168.1.1 up # route add 192.168.1.1 dev sl0 $B:G=i$N%3%^%s%I$G(B "&" $B$rK:$l$J$$$h$&$K$7$F$/$@$5$$!#(B

10.1.5.2. NetBSD $B$H(B Windows NT $B$N@\B3(B

NetBSD $B$H(B Windows NT $B$O(B ($BBgDq(B) $B%7%j%"%k(B $B%/%m%9(B $B%1!<%V%k$G%M%C%H%o!<%/$rAH$a$^$9!#(B $B4pK\E*$K$O!"(B Windows NT $B>e$G(B "Remote Access" $B@\B3$r9T$$!"(B NetBSD $B>e$G$O(B pppd $B$r5/F0$7$^$9!#(B

/root $B$K(B .ppprc $B%U%!%$%k$r:n$C$F$+$i!"(B root $B$G(B pppd $B$r

connect '/usr/sbin/chat -v CLIENT CLIENTSERVER'
  local
  tty00  
  115200
  crtscts
  lock   
  noauth
  nodefaultroute
  :192.168.1.2

$B:G=i$N9T$K$D$$$F$O!"$3$N@a$N8e$m$G@bL@$7$^$9(B; 192.168.1.2 $B$O(B Windows NT $B5!$K$D$J$0(B NetBSD $B$N(B IP $B%"%I%l%9$G(B; tty00 $B$O@\B3$K;H$&%7%j%"%k%]!<%H(B (1$BHVL\$N%7%j%"%k%]!<%H(B)$B$G$9!#(B

NT $BB&$N(B null modem $B%G%P%$%9$r%3%s%H%m!<%k%Q%M%k(B($B%b%G%`$N%"%$%3%s(B) $B$+$i%$%s%9%H!<%k$7!"$=$N%b%G%`$r;H$C$F(B Remote Access $B@\B3$r:n$kI,MW$,$"$j$^$9!#(B null modem $B%I%i%$%P!<$O(B Windows NT 4 $B$G$OI8=`$G$9$,!"$G$9$,!"$=$l$O(B 100% null modem $B$G$O$J$/(B: $B@\B3$,%"%/%F%#%V$K$J$C$F$+$i!"(B NT $B$O(B CLIENT $B$H8@$&J8;zNs$rAw?.$7!"(B CLIENTSERVER $B$H8@$&1~Ez$,5"$C$F$/$k$N$rBT$A$^$9!#(B $B$3$l$O!"(B .ppprc $B%U%!%$%k$N:G=i$N9T(B: chat $B$,!"@\B3$,(B activated $B$+!"Mn$A$k$+$N;~$K(B NT $B$K1~Ez$9$kI,MW$,$"$k$H$$$&$3$H$G$9!#(B

Remote Access $B@\B3$N@_Dj$NCf$G$D$.$N;XDj$r$9$kI,MW$,$"$j(B: null modem $B$r;H$&!"(B $BEEOCHV9f$r(B "1" ($B$H$K$+$/!";H$o$l$F$$$J$$$b$N(B)$B!"(B PPP $B%5!<%P!l9g(B NetBSD)$B$+$i$N$b$N$r;H$&!#(B $B%O!<%I%&%'%"E>Aw@)8f$rA*$S!"%]!<%H$N@_Dj$O(B 115200 8N1 $B$H$7$^$9!#(B

$B$3$l$G@\B3$N$?$a$N=`Hw$,@0$$$^$7$?!#(B

2$BBf$N%7%j%"%k%]!<%H$r(B $B%/%m%9%1!<%V%k$G7R$.$^$9!#(B
NetBSD $B$N(B pppd $B$r5/F0$7$^$9!#(B pppd $B$N%a%C%;!<%8$r8+$k$K$O(B: tail -f /var/log/messages)$B!#(B
Windows NT $B$N(B Remote Access $B$r%"%/%F%#%V$K$7$^$9!#(B

10.1.5.3. NetBSD $B$H(B Windows 95 $B$N@\B3(B

Windows 95 $B$N@_Dj$b(B Windows NT $B$N>l9g$HF1MM$G(B: Windows 95 $B$N%j%b!<%H%"%/%;%9$H(B NetBSD $B$N(B PPP $B%5!<%P!<$r;H$$$^$9!#(B $B$[$H$s$I$N(B ($BA4It$G$O$J$$$+$b$7$l$^$;$s$,(B) Windows 95 $B%j%j!<%9$G$O(B null modem $B%I%i%$%P!<$,F~$C$F$$$J$$$N$G!"(B $B>/$7LLE]$J$3$H$K$J$j$^$9!#(B $B0lHV4JC1$J2r7hK!$O%$%s%?!<%M%C%H>e$G(B null modem $B%I%i%$%P!<$rC5$7$F(B ($B$=$l$O>.$5$J(B .INF $B%U%!%$%k$G$9(B)$B!"(B Windows NT $B$N>l9g$HF1MM$K$9$k$3$H$G$9!#(B $BM#0l0c$&$N$O(B .ppprc $B%U%!%$%k$N:G=i$N9T(B ( chat $B8F$S=P$7(B) $B$,L5$/$F$bNI$$$3$H$G$9!#(B

Windows 95 $B$G(B real null modem $B%I%i%$%P!<$,8+$D$+$i$J$+$C$?>l9g$G$b!"(B $B$A$g$C$H$7$?%H%j%C%/$G2DG=$G$9(B:

Section 10.1.5.2 $B$K=q$+$l$F$$$k$h$&$J(B Remote Access $B@\B3$r(B "Standard Modem" $B$r;HMQ$7$F:n$j$^$9!#(B
.ppprc $BCf$N(B chat $B$N8F$S=P$79T$rconnect '/usr/sbin/chat -v ATH OK AT OK ATE0V1 OK AT OK ATDT CONNECT'
Section 10.1.5.2 $B$K=q$+$l$F$$$k$h$&$K$7$F@\B3$r$7$^$9!#(B

$B$3$NJ}K!$G$O(B chat $B%W%m%0%i%`$O@\B3$5$l$k$H$-$K8F$P$l(B Windows 95 $B$KI8=`%b%G%`$H;W$o$;$k$h$&$J(B $B%(%_%e%l!<%H$r$7!"(B Windows 95 $B$KBP$7$F(B $BI8=`%b%G%`$,$9$k$@$m$&1~Ez$HF1$81~Ez$r$7$^$9!#(B Windows 95 $B$,%b%G%`%3%^%s%IJ8;zNs$rAw=P$9$l$P(B chat $B$OI,$:(B OK $B$rJV$7$^$9!#(B

10.2. $B?J$s$@OCBj(B

$B$3$N>O(B (Introduction to TCP/IP Networking) $B$O(B Hubert Feyrer <hubert@feyrer.de> $B$K$h$k4s9F$G$9(B

10.2.1. IPNAT

$B$o$+$j$K$/$$F,;z8l(B IPNAT $B$O(B Internet Protocol Network Address Translation $B$N$3$H$G!"(B $BFbIt%M%C%H%o!<%/$r%$%s%?!<%M%C%H$K7R$0$b$N$G$9!#(B $B$3$N0UL#$O(B $B$?$C$?(B1$B$D$N(B "$BK\J*$N(B" IP $B%"%I%l%9!"(B $B%9%?%F%#%C%/(B($B@EE*(B) $B$"$k$$$O(B $B%@%$%J%_%C%/(B($BF0E*(B) IP $B%"%I%l%9$G!"(B IPNAT $B$,Av$C$F$$$k%2!<%H%&%'!<$K$h$C$F(B $BFbIt%M%C%H%o!<%/$NA4$F$N%[%9%H$,F1;~$K%$%s%?!<%M%C%H$K@\B3$G$-$k(B $B$K$9$k$b$N$G$9!#(B

IPNAT $B$NMxMQK!$NNc$,(B /usr/share/examples/ipf $B%G%#%l%/%H%j!<$K4v$D$+M-$j$^$9$N$G(B: BASIC.NAT $B%U%!%$%k5Z$S(B nat-setup $B$r8+$F$/$@$5$$!#(B

$B$3$N@a$G5-=R$9$k@_DjNc$N>\:Y$O(B Figure 10-1 $B$NDL$j$G(B: host 1 $B$O%b%G%`$G%W%m%P%$%@!<$KEEOC$r$+$1!"(B $B%@%$%J%_%C%/(B IP $B%"%I%l%9$rLc$C$F%$%s%?!<%M%C%H$K@\B3$7$^$9!#(B host 2 $B5Z$S(B host 3 $B$O(B $BDL>o@_Dj$G$O%$%s%?!<%M%C%H$K@\B3$G$-$^$;$s$,(B: IPNAT $B$,$=$l$r(B $B2DG=$K$7(B: host 1 $B$,(B hosts 2 $B5Z$S(B 3 $B$N%2!<%H%&%'!<$H$7$FF/$-$^$9!#(B

Figure 10-1. $B%2!<%H%&%'!<$N$"$k%M%C%H%o!<%/(B

10.2.1.1. $B%2!<%H%&%'!<(B/$B%U%!%$%d!<%&%)!<%k$N@_Dj(B

IPNAT $B$r;H$&$K$O%+!<%M%k%3%s%U%#%0%l!<%7%g%s%U%!%$%k$N(B "pseudo-device ipfilter" $B$rM-8z$K$7$?%+!<%M%k$r(B $B;H$&I,MW$,$"$j$^$9!#(B $B8=:_$N%+!<%M%k$,M-8z$K$J$C$F$$$k$+$rD4$Y$kJ}K!$O(B:

# sysctl net.inet.ip.forwarding
  net.inet.ip.forwarding = 1

$B>e$NNc$N$h$&$K7k2L$,(B "1" $B$K$J$i$PM-8z$K$J$C$F$$$F!"$=$&$G$O$J$/!"(B "0"$B$J$i$P!"$3$N%*%W%7%g%s$,L58z$K$J$C$F$$$^$9!#(B 2$BDL$j$NJ}K!$,$"$C$F(B:

$B%G%U%)%k%H$G(B GATEWAY $B%*%W%7%g%s$rM-8z$K$J$C$F$$$k(B $B?7$7$$%+!<%M%k$r%3%s%Q%$%k$9$k!#(B
$B
```
# sysctl -w net.inet.ip.forwarding=1            
```
$BDI2C$5$l$k(B sysctl $B@_Dj$O(B /etc/sysctl.conf $B$K=q$$$F$*$/;v$G!"5/F0;~$K<+F0E*$K@_Dj$5$l$^$9!#(B $B$3$N>l9g=q$$$F$*$/$N$O(B
```
net.inet.ip.forwarding=1	      
```

$B$3$N@a$N;D$j$G$O(B PPP $B@\B3$K$h$j%W%m%P%$%@!<$K@\B3$5$l$kEY$K(B $B<+F0E*$K$,$+$+$k$h$&$K$J$k(B IPNAT $B$N@_Dj$r=q$-$^$9!#(B $B$3$N@_Dj$G$O!"(B($BNc$($P(B)$B2HDm%M%C%H%o!<%/$NA4$F$N%[%9%H$,!"(B $B$=$l$,(B NetBSD $B$r;H$C$F$J$/$F$b!"%2!<%H%&%'!<5!$rDL$8$F(B $B%$%s%?!<%M%C%H$K@\B3$G$-$k$h$&$K$J$j$^$9!#(B

$B:G=i$K!"(B /etc/ipnat.conf $B%U%!%$%k$r:n$j!"

map ppp0 192.168.1.0/24 -> 0/32 proxy port ftp ftp/tcp
map ppp0 192.168.1.0/24 -> 0/32 portmap tcp/udp 40000:60000
map ppp0 192.168.1.0/24 -> 0/32

192.168.1.0/24 $B$O3d$jEv$F$?%M%C%H%o!<%/%"%I%l%9$G$9!#(B $B$3$N@_Dj%U%!%$%k$N(B1 $B9TL\$O%*%W%7%g%s$G(B: active FTP $B$,%2!<%H%&%'!<1[$($GF0$1$k$h$&$K$9$k$b$N$G$9!#(B 2$B9TL\$O(B tcp $B%Q%1%C%H5Z$S(B udp $B%Q%1%C%H$r@5$7$/07$($k$h$&$K$9$k$b$N$G(B; $BJ#?tBP(B1 $B$NDL?.4X78$N0Y$K(B portmapping $B$O=EMW$G$9!#(B) 3$B9TL\$O(B ICMP, ping $BEy$rM-8z$K$7$^$9!#(B

/etc/ppp/ip-up $B%U%!%$%k$r:n$j$^$9(B; $B$3$l$O(B PPP $B@\B3$,F0$-=P$9Kh$K(B $B<+F0E*$K8F$S=P$5$l$^$9!#(B

#!/bin/sh
# /etc/ppp/ip-up
/etc/rc.d/ipnat forcestart

/etc/ppp/ip-down $B%U%!%$%k$r:n$j$^$9(B; $B$3$l$O(B PPP $B@\B3$,JD$8$i$l$?$H$-(B $B<+F0E*$K8F$S=P$5$l$^$9!#(B

#!/bin/sh
# /etc/ppp/ip-down
/etc/rc.d/ipnat forcestop

ip-up $B$H(B ip-down $B$O6&$K

# chmod u+x ip-up ip-down

$B%2!<%H%&%'%$5!$N=`Hw$,$G$-$^$7$?!#(B

10.2.1.2. $B%/%i%$%"%s%H$N@_Dj(B

$B%2!<%H%&%'%$5!>e$K(B /etc/resolv.conf $B%U%!%$%k$N$h$&$J$b$N$r(B $B$D$/$j$^$9!#(B

# route add default 192.168.1.1

192.168.1.1 $B$OA0@a$G@_Dj$7$?%2!<%H%&%'%$5!$N(B $B%"%I%l%9$G$9!#(B

$B$b$A$m$s!"Kh2sBG$A$3$`$3$H$O$7$?$/$J$$$G$7$g$&$+$i!"(B $BNI$$J}K!$,$"$C$F!"(B/etc/rc.conf $B%U%!%$%k$N(B "defaultroute" $B%(%s%H%j!<$G(B $BDj5A$9$k$+!"(B /etc/mygate $B%U%!%$%k$K%2!<%H%&%'%$$N%"%I%l%9$r(B $B=q$/$+$N(B $B$I$A$i$+$G$G$-(B: /etc/mygate ($B$^$?$O(B defaultroute $B%*%W%7%g%s(B) $B$NFbMF$r(B route add default $B%3%^%s%I$N0z?t$H$7$F;H$&$3$H$G!"(B $B%G%U%)%k%H%k!<%H$O%7%9%F%`=i4|2=Cf$K<+F0E*$K@_Dj$5$l$^$9!#(B

$B%/%i%$%"%s%H5!$,(B NetBSD $B$r;H$C$F$$$J$1$l$P!"@_Dj$OJQ$o$j$^$9!#(B Windows $B%Q%=%3%s$G$O!"(BTCP/IP $B%W%m%H%3%k$N%W%m%Q%F%#!"%2!<%H%&%'%$$G(B NetBSD $B%2!<%H%&%'%$$N(B IP $B%"%I%l%9$r(B $B%2!<%H%&%'%$$H$7$F@_Dj$7$^$9!#(B

$B0J>e$,%/%i%$%"%s%H5!$KI,MW$J$3$H$G$9!#(B

10.2.1.3. $BJXMx$J%3%^%s%I(B

ping
netstat -r: $B%k!<%F%#%s%0%F!<%V%k$NI=<((B ( route show $B$HF1MM(B)
traceroute: $B%/%i%$%"%s%H>e$G!"(B $B9T$-@h$^$G$N%Q%1%C%H$N%k!<%H$rDI@W$7$FI=<($7$^$9(B
tcpdump: $B%2!<%H%&%'%$>e$G(B TCP/IP traffic $B$N%b%K%?!<$K;H$$$^$9(B

10.2.2. NFS

$B$3$l$G!"(B NFS $B$r;H$C$F!"%M%C%H%o!<%/$rDL$8$F%U%!%$%k$d%G%#%l%/%H%j!<$N(B $B6&M-$9$k$?$a$N=`Hw$,$G$-$^$7$?!#(B $B%U%!%$%k6&M-$N;kE@$G8+$F!"%U%!%$%k$d%G%#%l%/%H%j!<$N(B $B%"%/%;%9$rDs6!$9$k%3%s%T%e!<%?!<$r(B server $B$H8F$S!"$=$l$i$N%U%!%$%k$d%G%#%l%/%H%j!<$r(B $B;H$&%3%s%T%e!<%?!<$r(B client $B$H8F$S$^$9!#(B 1$BBf$N%3%s%T%e!<%?!<$G%5!<%P!<$H%/%i%$%"%s%H$KF1;~$K$J$k$3$H$,$G$-$^$9!#(B

$B%+!<%M%k$O%/%i%$%"%s%H5Z$S%5!<%P!<$=$l$>$l$K$U$5$o$7$$%*%W%7%g%s$G(B $B%3%s%Q%$%k$5$l$F$$$kI,MW$,$"$j$^$9(B ($B$=$N%*%W%7%g%s$O!"%+!<%M%k%3%s%U%#%0%l!<%7%g%s%U%!%$%k(B $BCf$K4JC1$K8+$D$1$i$l$^$9!#(B NFS $B4X78$N%+!<%M%k%*%W%7%g%s$K4X$9$k>\$7$$$3$H$O(B Section 10.1.1 $B$r(B $B$4Mw$/$@$5$$!#(B
$B%5!<%P!<$G$O(B /etc/inetd.conf $B$N(B RPC $B%5!<%S%9$,M-8z$K$J$C$F$$$kI,MW$,$"$j$^$9!#(B
$B%5!<%P!<$N(B /etc/rc.conf $B$G$O(B inetd $B$H(B portmap $B%G!<%b%s!"(B nfs_server $B%*%W%7%g%s$,M-8z$K$J$C$F$$$kI,MW$,$"$j$^$9!#(B
$B%/%i%$%"%s%H$N(B /etc/rc.conf $B$G$O(B inetd $B$H(B nfs_client $B$,M-8z$K$J$C$F$$$k(B $BI,MW$,$"$j$^$9!#(B
$B%5!<%P!<$O%(%/%9%]!<%H$9$k%G%#%l%/%H%j!<$r(B /etc/exports $B$K(B list $B$7$F$+$i!"(B kill -HUP `cat /var/run/mountd.pid $B%3%^%s%I$r

$B%/%i%$%"%s%H5!$,(B NFS $B$G%j%b!<%H%G%#%l%/%H%j!<$K%"%/%;%9$G$-$k$h$&$K$J$k$K$O(B:

$B%5!<%P!<$,$=$N%G%#%l%/%H%j!<$r%(%/%9%]!<%H$7$F$$$k(B
$B%/%i%$%"%s%H5!$,mount server:/xx/yy /mnt

mount $B%3%^%s%I$O%j%b!<%H%G%#%l%/%H%j!<$K4X$9$k%*%W%7%g%s$,(B $BK-IY$K$"$C$F!"$"$^$jD>46E*$KH=$k$b$N$G$OM-$j$^$;$s(B ($B95$($a$K8@$C$F$b(B)$B!#(B

10.2.2.1. NFS $B@_DjNc(B

$B7Y9p(B: $B$3$NJ#;($J@_DjNc$O(B NetBSD $B%a!<%j%s%0%j%9%H$G(B $B;EF~$l$^$7$?$,!"(B $B;d$O;n$7$F$$$^$;$s(B; NFS $B$rF/$+$;$kJ}K!$N%"%$%G%"$K$O$J$k$G$7$g$&!#(B

$B%7%J%j%*$O$N%G%#%l%/%H%j!<$r(B $BA4$F$N%/%i%$%"%s%H5!$G(B $B6&M-$7$^$9!#(B

$B%5!<%P!<$+$i%(%/%9%]!<%H$5$l$F$$$k%G%#%l%/%H%j!<$O(B:

/export/cli?/root: 5$B$D$N%/%i%$%"%s%H%^%7%s$=$l$>$l$N(B $B8GM-$N%k!<%H%G%#%l%/%H%j!
/export/cli?/swap: 5$B$D$N%/%i%$%"%s%H%^%7%s$=$l$>$l$N%9%o%C%W%G%#%l%/%H%j!<$G(B5$B$D!#(B
/export/common/usr: /usr $B%G%#%l%/%H%j!<(B; $BA4%/%i%$%"%s%H6&DL!#(B
/usr/src: $BA4%/%i%$%"%s%H%^%7%s$G6&DL$N(B /usr/src $B%G%#%l%/%H%j!<(B $B!#(B

$Be$K$"$j(B

/dev/ra0a on /
  /dev/ra0f on /usr
  /dev/ra1a on /usr/src
  /dev/ra2a on /export

$B3F%/%i%$%"%s%H$O

buzz:/export/cli?/root on /
  buzz:/export/common/usr on /usr
  buzz:/usr/src on /usr/src

$B%5!<%P!<$N@_Dj$O

# /etc/exports
  /usr/src -network 123.45.67.0 -mask 255.255.255.0
  /export  -alldirs -maproot=root -network 123.45.67.0 -mask 255.255.255.0

$B%/%i%$%"%s%H%^%7%s$G$O(B /etc/fstab $B$NCf?H$r(B

buzz:/export/cli?/root / nfs rw
  buzz:/export/common/usr /usr nfs rw,nodev,nosuid
  buzz:/usr/src /usr/src rw,nodev,nosuid

$B>e$NNc$N:G=i$N9T$N(B "?" $BJ8;z(B $B$O(B $B%/%i%$%"%s%H5!$4$H$K$D$1$?HV9f$G$9!#(B

10.2.3. amd $B$G$N(B `/net` $B@_Dj(B

10.2.3.1. $B35O@(B

NFS ($B$dB>$N(B) $B%^%&%s%H$NLdBj(B $B$O!"(B $BDL>o!"$=$l$r$9$k$N$K(B root $B8"8B$K$J$kI,MW$,$"$C$F!"(B $B%f!<%6!<$K$OITJX$G$9!#(B amd $B$r;H$&$3$H$G!"(B certain $B%G%#%l%/%H%j!<(B ($B$3$3$G$O(B /net)$B$r(B $B$@$l$b$,0lHL%f!<%6!<$G(B NFS-mount $B$G$-!"(B NFS $B%5!<%P!<$KD9$$$3$H

certain $B%5!<%P!<$,%U%!%$%k%7%9%F%`$N(B $B%(%/%9%]!<%H$r$7$F$$$k$+!"$^$?!"$=$l$O$I$l$+!"D4$Y$k$K$O!"(B showmount $B%3%^%s%I$K(B -e (export) $B%9%$%C%A$rIU$1$F(B:

% showmount -e wuarchive.wustl.edu
  Exports list on wuarchive.wustl.edu:
  /export/home                       onc.wustl.edu 
  /export/local                      onc.wustl.edu 
  /export/adm/log                    onc.wustl.edu 
  /usr                               onc.wustl.edu 
  /                                  onc.wustl.edu 
  /archive                           Everyone

$B$"$k%G%#%l%/%H%j!<(B ($BNc$($P(B /archive/systems/unix/NetBSD) $B$N2<$r%"%/%;%9$9$k$?$a$K%G%#%l%/%H%j!<$r%^%&%s%H$7$?$1$l$P!"(B $BC1$K$=$N%G%#%l%/%H%j!<$K9T$/$@$1$G(B:

% cd /net/wuarchive.wustl.edu/archive/systems/unix/NetBSD

$B%U%!%$%k%7%9%F%`$O(B ( amd $B$K$h$C$F(B) $B%^%&%s%H$5$l!"(B $B%G%#%l%/%H%j!<$,(B $B%7%9%F%`$N%9!<%Q!<%f!<%6!<$K$h$C$F(B $B%^%&%s%H$5$l$?$h$&$K!"$"$i$f$k%U%!%$%k$N(B $B%"%/%;%9$,$G$-$^$9!#(B

10.2.3.2. $B

/net $B%G%#%l%/%H%j!<$N@_Dj$O(B $Bamd $B@_Dj$b4^$_$^$9(B):

/etc/rc.conf $B$G!"
```
amd=yes            
```
mkdir /amd
mkdir /net
/usr/share/examples/amd/master $B$h$j(B $B!"(B /etc/amd/master$B$K
```
/net            /etc/amd/net            
```

/usr/share/examples/amd/net $B$r(B $BNc$K!"(B /etc/amd/net $B$K

/defaults       type:=host;rhost:=${key};fs:=${autodir}/${rhost}/root
  *               host==${key};type:=link;fs:=/                           \
                  host!=${key};opts:=ro,soft,intr,nodev,nosuid,noconn

$B%j%V!<%H$9$k$+!"(Bamd $B$r
```
# sh /etc/rc.d/amd restart	    
```

10.2.4.6to4 $B$G$N(B IPv6 $B@\B3@-(B & $B0\9T(B

$B$3$N@a$G$OOCBj$r(B IPv6 $B%M%C%H%o!<%/@\B3$N$7$+$?$K$D$$$F$K=8Cf$7$^$9$,!"(B - $B%M%$%F%#%V@\B3$r$9$k$N$O(B $B$^$@4JC1$J$3$H$G$O$J$/(B - $B%M%$%F%#%V$N(B IPv6 $B%T%"!<$,=P$F$/$k$^$G$N4V$N(B $B%M%$%F%#%V(B IPv6 $B@\B3(B $B$NBe$o$j$K$D$$$F5-=R$7$^$9!#(B

IPv6 $B%M%$%F%#%V$rDs6!$9$k(B ISP $B$r8+$D$1$k$K$O$+$J$j$N9,1?$,I,MW$G$9!#(B $B

$B$3$l$,!"$"$J$?$NA*Br;h$KF~$kM>CO$,L5$$$H$7$F$b!"(B $B$^$@(B IPv6 $B@\B3@-$rF@$kJ}K!$,$"$C$F!"(B $B%H%s%M%k$r;H$&$H$$$&J}K!$G$9!#(B Figure 10-2 $B$K$"$k$h$&$K!"%1!<%V%k>e$r(B IPv6 $B$,N.$l$kBe$o$j$K!"(B IPv4 $B$N%+%W%;%k$KJq$^$l$?(B IPv6 $B%Q%1%C%H$,N.$l$k$b$N$G$9!#8=B8$7$F$$$k(B IPv4 $B%$%s%U%i$r;H$$!"(B $B%+%W%;%k2=$5$l$?%Q%1%C%H$r(B IPv6 $B$,;H$($k(B uplink $B$KAw$j!"(B $B$=$3$G%+%W%;%k$r2r$$$F!"%M%$%F%#%V(B IPv6 $B7PM3$G(B IPv6 $B%Q%1%C%H$rH/Aw$7$F$b$i$$$^$9!#(B

Figure 10-2. $B$7$P$7$PJQ49K!$H$7$F;H$o$l$k(B IPv4 $B%Q%1%C%H$X$N(B IPv6 $B%H%s%M%j%s%0(B

$B%H%s%M%k$r;H$&$H$-!"(B2$B$D$N2DG=@-$,$"$j$^$9!#(B 1$B$D$O$$$o$f$k(B "configured" $B%H%s%M%k$NMxMQ$G!"(B $B$b$&(B1$B$D$O(B "automatic" $B%H%s%M%k$NMxMQ$G$9!#(B "configured" $B%H%s%M%k$O%H%s%M%k$NN>C<$G=`Hw$r$9$k$3$H$,I,MW$G!"(B $B@_Dj>pJs$r8r49$9$k2?$i$+$NEPO?$N$h$&$J$b$N$H$H$b$KMQ$$$i$l$^$9!#(B $BNc$($P$3$N$h$&$J(B configured $B%H%s%M%k$K(B [RFC1933] $B$K=q$+$l$F$$$k(B IPv6-over-IPv4 encapsulation $B$,$"$j(B $BNc$($P(B NetBSD $B$G$O(B gif(4) $B%G%P%$%9$K

"automatic" $B%H%s%M%k$O(B $B$J$s$i$+$NpJs$r$D$/$j!"(B $BFC$KEPO?$r$9$k$3$H$b$J$7$K%"%C%W%j%s%/$K;H$($k(B $B%H%s%M%k%W%m%H%3%k$rF0$+$7$F$F$$$^$9!#(B $B$3$N$h$&$J%W%m%H%3%k$GNI$/;H$o$l$F$$$k$b$N$K(B [RFC3056] $B$K=q$+$l$F$$$k(B 6to4 $B%a%+%K%:%`$,$"$j!"(B NetBSD $B$G$O(B stf(4) $B%G%P%$%9$NCf$KpJs$rEPO?$9$k$3$H$rMW5a$5$l$J$$%a%+%K%:%`$K$O!"$[$+$K(B 6over4 $B$,$"$j!"(B IPv6 $B$r(B $BNc$($P%$!<%5%M%C%H$d(B FDDI $B$NBe$o$j$K!"(B $B%^%k%A%-%c%9%H$,M-8z$J(B IPv4 $B%M%C%H%o!<%/$N>e$G1?$VRFC2529] $B$G$9!#(B $B$3$N@\(B configured IPv6 $B%H%s%M%k$r@_Dj$9$l$P$h$/!"(B $B$3$N>l9g!"$=$s$J$K:$$k$3$H$G$O$"$j$^$;$s!#(B

10.2.4.1. Getting 6to4 IPv6 up & running

6to4 $B$O(B IPv4 uplink $B$@$1$r;}$D%[%9%H$G(B IPv6 $B@\B3@-$rSection 9.1.7 $B$K=q$$$F$"$k(B background $B$r(B have $B$k$J$i$P!#(B $B%@%$%J%_%C%/$K3d$jEv$F$i$l$?(B IPv4 $B%"%I%l%9$HF1MM$K%9%?%F%#%C%/$J$b$N$,MQ$$$i$l!"(B $BNc$($P!":#F|$G$O%b%G%`%@%$%"%k%"%C%WJ}<0$G$b8+$D$1$i$l$^$9!#(B $B%@%$%J%_%C%/(B IPv4 $B%"%I%l%9$J$i!"(B IP $B%"%I%l%9JQ2=$K$h$C$F!"(B $B%G!<%?$N

$B$3$N@a$N@_DjNc$O(B NetBSD 1.5.2 $BMQ$N$b$N$G$9!#(B

10.2.4.2. 6to4 $B$N$?$a$N%"%I%l%96u4V$rF@$k(B

$B$"$J$?$N%5%$%H$N(B 6to4 IPv6 $B@_Dj$O(B1$B$D$N(B IPv6 $B%"%I%l%9$+$i(B $B@.$jN)$C$F$*$i$:(B; $B$=$NBe$o$j!"(B /48 $B%M%C%H%o!<%/A4BN$,$l(B 2⁶⁴ $B%N!<%I$r;}$D$3$H$N$G$-$k(B IPv6 $B%5%V%M%C%H$r(B 2¹⁶ $BM?$($i$l$^$9!#(B Figure 10-3 $B$K(B IPv4 $B%"%I%l%9$+$iF@$i$l$k(B IPv6 $B%"%I%l%9(B ($BHO0O(B) $B$r<($7$^$9!#(B

6to4 $B%W%j%U%#%C%/%9$H!"(B $B%o!<%k%I%o%$%I$G%f%K!<%/$J(B IPv4 $B%"%I%l%9$N$*$+$2$G!"$3$N%"%I%l%9%V%m%C%/$O%f%K!<%/$G!"(B $B3:Ev(B IPv4 $B%"%I%l%9$r;}$C$?$"$J$?$N5!3#$K3d$jEv$F$i$l$^$9!#(B

Figure 10-3. IPv4 $B%"%I%l%9$+$i(B IPv6 $B%"%I%l%9$r

10.2.4.3. $B@\B3$N$7$+$?(B

configured "IPv6-over-IPv4 tunnel" $B@_Dj(B $B$H$O0c$C$F!"(B 6bone $B%2!<%H%&%'!<$X$NEPO?$OI,MW$J$/!"(B $BA4$F$N(B ( IPv4 $B$G%+%W%;%k2=$5$l$?(B) IPv6 traffic$B$,Aw$i$l$^$9!#(B $BBe$o$j$K!"(B IPv6 $B%"%I%l%9$O!"$"$J$?$N(B IPv4 $B$+$iF3$+$l$?$b$N$G!"(B $BA4$F$N1~Ez$O$"$J$?$N0lHV6a$/$N(B 6to4 $B%2!<%H%&%'!<$rDL$C$F(B $BAw$i$l$^$9!#(B $B%Q%1%C%H$N%+%W%;%k3+J|$O(B 6to4-capable $B%M%C%H%o!<%/%$%s%?!<%U%'!<%9$K$h$C$F9T$o$l!"(B $B7k2L$N(B IPv6 $B%Q%C%1!<%8$O$"$J$?$N7PO)@_Dj$K=>$C$FG[Aw$5$l$^$9!#(B ( 6to4 $B$r3d$jEv$F$?%M%C%H%o!<%/$K(B2$BBf0J>e$N5!3#$,$"$k>l9g(B)$B!#(B

IPv6 $B%Q%1%C%H$NAw=P$G$O!"(B 6to4-capable $B%M%C%H%o!<%/%$%s%?!<%U%'!<%9(B $B$,(B IPv6 $B%Q%1%C%H$rAw$7$^$9!#(B Figure 10-4 $B$K$3$l$,IA$+$l$F$$$^$9!#(B

Figure 10-4. 6to4 $B$G$OMW5a$H1~Ez$G0[$J$k%2!<%H%&%'!<$rDL$k%k!<%H$r$H$l$k(B

10.2.4.4. $B%;%-%e%j%F%#LdBj(B

"configured tunnel" $B@_Dj$HBP>HE*$K!"IaDL!"$"$J$?$O(B 6to4 $B$r$-$A$s$HF0:n$5$;$l$k$h$&$K$OG'>Z$5$l$F$$$J$$=P=j$+$i$N(B 6to4 $B%Q%1%C%H$r(B $B%V%m%C%/$9$k$h$&$K%Q%1%C%H%U%#%k%?!<$r@_Dj$9$k$3$H$,$G$-$^$;$s!#(B $B$=$l$J$j$K!"0-0U$N$"$k%f!<%6!<$O(B $BL58z$J(B/$BM-32$J(B IPv6 $B%Z%$%m!<%I$N%Q%1%C%H$rAw$k$3$H$,$G$-$^$9!#(B $B$b$7!"$^$@6-3&%2!<%H%&%'!<$G%U%#%k%?!<$7$F$J$/$F$b!"(B $B0J2<$K<($9FCD'$N%Q%1%C%H(B $B$O@5Ev$J(B 6to4 $B%Q%1%C%H$H$9$k$Y$-$G$O$J$/$F!"(B $B$$$/$D$+$N%U%!%$%d!<%&%)!<%k$O$=$l$i$r@5Ev$G$"$k$H$9$k$h$&$G$9(B:

$BL$;XDj(B IPv4 $B;OE@(B/$B=*E@(B $B%"%I%l%9(B: 0.0.0.0/8
outer (v4) $B;OE@(B/$B=*E@$N(B $B%k!<%W%P%C%/%"%I%l%9(B: 127.0.0.0/8
$B;OE@(B/$B=*E@(B $B$N(B IPv4 $B%^%k%A%-%c%9%H(B : 224.0.0.0/4
limited $B%V%m!<%I%-%c%9%H(B: 255.0.0.0/8
$B;OE@(B/$B=*E@$N%5%V%M%C%H%V%m!<%I%-%c%9%H%"%I%l%9(B : $B$"$J$?$N(B IPv4 $B@_Dj$K0MB8(B

NetBSD stf(4) $B%^%K%e%"%k%Z!<%8$K$O%U%#%k%?%j%s%0$K4X$9$k$$$/$D$+$N99$J$k%"%I%P%$%9(B $B$HF1MM$K!"%G%U%)%k%H$N(B KAME $B%9%?%C%/$,Z$9$k$N$K(B IPsec $BG'>Z(B $B$r;H$&$3$H$,$G$-$^$9!#(B

10.2.4.5. 6to4 $B@_Dj$KI,MW$J%G!<%?(B

IPv6 over 6to4 $B$N%;%C%H%"%C%W$H@_Dj$K$O!"(B $B$"$i$+$8$a!"$$$/$i$+$N@_Dj>pJs$rCN$C$F$*$/I,MW$,$"$j$^$9!#(B $B$3$l$i$O(B:

$B$"$J$?$N(B $B%m!<%+%k(B IPv4 $B%"%I%l%9!#(B $B$[$H$s$I$N(B Unix $B%7%9%F%`$G(B 'ifconfig -a' $B$+(B 'netstat -i' $B%3%^%s%I$N$I$A$i$G$G$bD4$Y$i$l$^$9!#(B NAT $B$r;H$C$?(B $B%2!<%H%&%'!
$B$3$NNc$G$O!"%m!<%+%k(B IPv4 $B%"%I%l%9$H$7$F(B 62.224.57.114 $B$r;H$$$^$9!#(B
$B$"$J$?$N%m!<%+%k(B IPv6 $B%"%I%l%9$O(B IPv4 $B%"%I%l%9$+$iF@$k$b$N$G$9!#(B $BJ}K!$K$D$$$F$O(B Figure 10-3 $B$r(B $B$4Mw$/$@$5$$!#(B
$B$3$NNc$G$O!"(B $B$3$l$O(B 2002:3ee0:3972:0001::1 (62.224.57.114 == 0x3ee03972, 0001::1 $B$OG$0U(B $B$KA*$s$@$b$N(B)$B!#(B
$BMxMQ$7$?$$(B 6to4 uplink $B%2!<%H%&%'%$$N(B IPv6 $B%"%I%l%9!#(B IPv6 $B%"%I%l%9$K$O!"DL>o$N(B 6to4 translation $B$G$O(B $B$=$N(BIPv4 $B%"%I%l%9$b4^$^$l$F$$$^$9!#(B
$B$3$3$G$O(B 2002:c25f:6cbf::1 (== 194.95.108.191 == 6to4.ipv6.fh-regensburg.de) $B$r;H$$$^$9!#(B

10.2.4.6. Kernel Preparation

6to4 $B%Q%1%C%H$r=hM}$9$k$K$O!"(B $B%*%Z%l!<%F%#%s%0%7%9%F%`$N%+!<%M%k$,(B $B$=$l$i$N$3$H$K$D$$$FCN$C$F$$$kI,MW$,$"$j$^$9!#(B 6to4 $B$N$3$H$rCN$C$F$$$F$=$l$r07$($k%I%i%$%P!<$,F~$C$F$$$J$1$l$P$J$j$^$;$s!#(B

NetBSD $B%+!<%M%k$K$D$$$F$O!"(B IPv6 $B$H(B 6to4 $B$r;H$&$?$a$K(B kernel config $B%U%!%$%k$K

options INET6                 # IPv6  pseudo-device stf             # 6to4 IPv6 over IPv4 encapsulation

$BCp(B stf(4) $B%G%P%$%9$O%G%U%)%k%H$G$OM-8z2=$5$l$F$$$^$;$s!#(B $B%+!<%M%k$r:F9=C[$7$F!"?7$7$$%+!<%M%k$G%j%V!<%H$7$F$/$@$5$$!#(B $B?7$7$$%+!<%M%k$N@_Dj$H9=C[!"%$%s%9%H!<%k$K$D$$$F(B $B$N99$J$k>pJs$O(B Chapter 7 $B$r(B $B8+$F$/$@$5$$(B!

10.2.4.7. 6to4 $B@_Dj(B

$B$3$N@a$G$O(B 6to4 $B@_Dj$N%3%^%s%I$K$D$$$F5-=R$7$^$9!#(B $B4JC1$K8@$&$H!"$=$l$N%9%F%C%W$O$3$&$G(B:

$B%$%s%?!<%U%'!<%9$N@_Dj(B
$B%G%U%)%k%H%k!<%H$N@_Dj(B
$BI,MW$J$i$P(B $B%k!<%?!

6to4 $B@_Dj$N:G=i$NCJ3,$O(B 6to4 $B%$%s%?!<%U%'!<%9$K(B IPv6 $B%"%I%l%9$r3d$jEv$F$k$3$H$G$9!#(B $B$3$l$O(B ifconfig(8) $B%3%^%s%I$G9T$$$^$9!#(B $B>e$NNc$G$O!"3d$jEv$F$r$9$k(B NetBSD $B$N%3%^%s%I$O(B:

# ifconfig stf0 inet6 2002:3ee0:3972:1::1 prefixlen 16 alias  ($B%m!<%+%k(B)

$B$3$l$i$N%3%^%s%I$G(B 6to4 $B%G%P%$%9$N@_Dj8e!"(B $B$9$Y$F$N(B IPv6 traffic $B$r(B 6to4 (uplink) $B%2!<%H%&%'%$$K(B $B%U%)%o!<%I$9$k$N$K%k!<%F%#%s%0$N@_Dj$,I,MW$G$9!#(B $B$3$N0lHVNI$$J}K!$O%G%U%)%k%H%k!<%H$r@_Dj$9$k$3$H$G!"(B NetBSD $B$G$O$=$N%3%^%s%I$O(B:

# route add -inet6 default 2002:cdb2:5ac2::1 (remote)

$BCp(B NetBSD $B$N(B stf(4) $B%G%P%$%9$O(B 6to4 uplink$B$N(B IPv4 $B%"%I%l%9(B $B$r(B $B%k!<%F%#%s%0%F!<%V%k$+$i7h$a$^$9!#(B $B$3$NFCD'$K$h$j!"(B $BNc$($P(B via 6Bone $B7PM3$N(B IPv6 uplink$B$,$"$l$P(B $B$"$J$?<+?H$N(B 6to4 (uplink) $B%2!<%H%&%'%$$,4JC1$K@_Dj$G$-$^$9!#(B

$B$3$l$i$N%3%^%s%I$r

# /sbin/ping6 www.kame.net

6to4 $B7PM3$N(B IPv6 $B@_Dj$N:G8e$N%9%F%C%W$H$7$F!"(B $B$"$J$?$,%M%C%H%o!<%/>e$K$$$/$D$+$N%[%9%H$r;}$C$F$$$k>l9g(B $B%k!<%?!$X$N%k!<%F%#%s%0$OHs>o$K9b$/$J$k$G$7$g$&(B - $B%Q%1%C%H$,(B6to4 $B%2!<%H%&%'!<$KAw$i$l$F!"NY$N%N!<%I$K5"$C$F$/$k(B $B$H$$$&$3$H$K$J$j$^$9!#(B $BBe$o$j$K!"(B1$BBf$K(B 6to4 $B$r@_Dj$7!"%1!<%V%k>e$O(B IPv6 $B%M%$%F%#%V$G$*OC$9$kJ}K!$N$[$&$,!"(B handling things $B$h$j$b$h$$$G$7$g$&!#(B

$B$3$N:G=i$N%9%F%C%W$O!"%$!<%5%M%C%H$K(B IPv6 $B%"%I%l%9$r(B $B?6$k$3$H$G$9!#

ifconfig ne0 inet6 alias 2002:3ee0:3972:2:1234:56ff:fe78:9abc

$B$3$3$G!"(B 'ne0' $B$O%$!<%5%M%C%H%+!<%I%$%s%?!<%U%'!<%9$NNc$G$9!#(B $B$3$l$O!"$I$N

$B/etc/rc.conf $B$G(B "ip6mode=router" $B$r@_Dj$7$^$9!#$3$l$K$h$C$F!"(B sysctl $B$K$h$C$F(B "net.inet6.ip6.forwarding" $B$r(B "1" $B$K@_Dj$5$l$^$9(B:

# sysctl -w net.inet6.ip6.forwarding=1

Figure 10-5. $B%Q%1%C%H%U%)%o!<%G%#%s%0$,I,MW$J(B 6to4 $B%k!<%?!<(B

BSD $B$G%k!<%?!/etc/rtadvd.conf $B%U%!%$%k$N%A%'%C%/$,I,MW$G$9!#(B $B$$$m$$$m@_Dj$9$k$3$H$,$G$-$k$h$&$K$J$C$F$$$^$9$,!"(B $BDL>o!"2?$bF~$C$F$$$J$$%G%U%)%k%H@_Dj$GBg>fIW$G$9!#(B $B%G%U%)%k%H>uBV$G!"%k!<%?!<$N%M%C%H%o!<%/%$%s%?!<%U%'!<%9(B $B$9$Y$F$N>e$G8+$D$+$C$?(B IPv6 $B%"%I%l%9$,DLCN$5$l$^$9!#(B

$B%A%'%C%/$9$k$3$H$G!"%k!<%?!rtadvd'$B$H8F$P$l$^$9!#(B $B5/F0$O

# rtadvd

10.2.4.8. pkgsrc/net/6to4 $B$r;H$C$F(B Quickstart

$B$3$3$^$G!"(B 6to4 $B$NF/$-$H$F

pkgsrc/net/6to4 $B%Q%C%1!<%8$N@_Dj$N%9%F%C%W$O(B:

6to4-1.1nb1 $B%Q%C%1!<%8$r(B pkgsrc $B$+$i%3%s%Q%$%k$9$k$+!"(B pkg_add $B$r;H$C$F(B $B%$%s%9%H!<%k$7$F$/$@$5$$!#(B
```
# cd /usr/pkgsrc/net/6to4
  # make install
	    
```
$B>e$N2r@b$r8+$F!"%+!<%M%k$K(B stf(4) $B5<;w%G%P%$%9$,F~$C$F$$$k$+(B $B3NG'$7$F$/$@$5$$!#(B
'6to4' $B%Q%C%1!<%8$N@_Dj$r$7$^$9!#(B $B:G=i$K(B/usr/pkg/etc/6to4.conf-example $B$r(B /usr/pkg/etc/6to4.conf $B$K%3%T!<$7!"$=$l$+$iJQ?t$rD4@0$7$^$9!#(B $B$3$N%U%!%$%k$O(B perl $BJ8K!$G$"$k$3$H$KCm0U$7$F$/$@$5$$!#(B
```
# cd /usr/pkg/etc
  # cp 6to4.conf-example 6to4.conf
  # vi 6to4.conf
	    
```
6to4.conf $B$K@_Dj$G$-$kA4$F$NJQ?t$K$D$$$F$N@bL@$O!"(B 6to4(8) $B%^%K%e%"%k%Z!<%8$r$4Mw$/$@$5$$!#(B PPP $B7PM3$N%@%$%"%k%"%C%W(B IP $B$G!"(B $B2HDm$"$k$$$O;E;v>l%M%C%H%o!<%/$NB>$N(B IPv6 $B%^%7%s$K(B Router Advertizing $B$r$7$h$&$H;W$o$J$$$J$i$P!"(B $B2?$b@_Dj$9$kI,MW$,$"$j$^$;$s!#(B Router Advertising $B$r@_Dj$7$?$1$l$P!"(B in_if $B$K(B $BFbIt8~$1(B ($B%$!<%5%M%C%H(B) $B%$%s%?!<%U%'!<%9$r@_Dj$9$k$3$H$,I,MW$G!"(B $BNc$($P(B
```
$in_if="rtk0";            # Inside (ethernet) interface 
```
$B%@%$%d%k%"%C%W$r$7!"$=$l$+$i!"
```
# /usr/pkg/sbin/6to4.pl start	    
```
$B$=$l$G@\B3$5$l$k$O$:$J$N$G!"(B ping6(8) $BEy$r;H$C$F(B $BF0$$$F$$$k$3$H$r3NG'$7$F$/$@$5$$!#(B $BF0$/$J$i!"(B /etc/ppp/ip-up $B%9%/%j%W%H$K
```
logger -p user.info -t ip-up Configuring 6to4 IPv6
  /usr/pkg/sbin/6to4.pl stop
  /usr/pkg/sbin/6to4.pl start	    
```
LAN $B$N(B IPv6 route $B$K$7$?$1$l$P!"(B Router Advertising $B$N@_Dj$H$7$F(B 6to4.pl $B$r
```
# /usr/pkg/sbin/6to4 rtadvd-start	    
```
$B>o$KJQ$o$i$J$$@_Dj$H$7$F(B /etc/ppp/ip-up $B$K(B $B=q$-$3$`$HNI$$$G$7$g$&!#(B
6to4 $B@_Dj$,<+F0$G9T$o$l$k$h$&$K(B /etc/ppp/ip-up $B$K/etc/ppp/ip-down $B$b=q$-49$($F!"(B offline $B$K$J$C$?$H$-$K(B $B$=$l$,;_$^$k$h$&$K$7$?$$$H;W$$$^$9!#(B /etc/ppp/ip-down $B$K=q$-2C$($k$b$N$O
```
logger -p user.info -t ip-down Shutting down 6to4 IPv6
  /usr/pkg/sbin/6to4.pl rtadvd-stop     /usr/pkg/sbin/6to4.pl stop 
```

10.2.4.9. $B$o$+$C$F$$$k(B 6to4 $B%2!<%H%&%'%$(B

$B8=:_!"8x3+(B 6to4 $B%2!<%H%&%'%$$OB?$/$O$J$/!"(B $B>/$J$$Cf$+$i$b!"(B $B%M%C%H>e$G:G$b6a$$$b$N$r;H$$$?$$$G$7$g$&!#(B $BF0:n$,CN$i$l$F$$$k(B 6to4 $B%2!<%H%&%'%$$N%j%9%H$O(B http://www.kfu.com/~nsayer/6to4/ $B$K$"$j$^$9!#(B $B%F%9%H$G$O(B 6to4.kfu.com $B$H(B 6to4.ipv6.microsoft.com $B$@$1$,F0$$$F$^$7$?!#(B Cisco $B$OB>$K;}$C$F$$$F!"$=$l$OMxMQA0$KEPO?$,I,MW$G$9!#(B http://www.cisco.com/ipv6/ $B$r$4Mw$/$@$5$$!#(B

$B%I%$%D$K$b(B 6to4 $Be$K=q$+$l$?@_DjK!$,;H$o$l$F$$$^$9!#$3$N5!3#$N@_DjA4BN$O(B http://www.feyrer.de/IPv6/netstart.local $B$G8+$k$3$H$,$G$-$^$9!#(B

10.2.4.10. Conclusion & Further Reading

Compared to where IPv4 is today, IPv6 is still in it's early steps. It is working, there are all sort of services and clients available, only the userbase is missing. It is hoped the information provided here helps people better understand what IPv6 is, and to start playing with it.

A few links should be mentioned here for interested parties:

An example script to setup 6to4 on BSD based machines is available at http://www.netbsd.org/packages/net/6to4/. The script determines your IPv6 address and sets up 6to4 and (if wanted) router advertising. It was designed to work in dialup setups with changing IPv4 addresses.
Given that there isn't a standard for IPv6 in Linux land today, there are different setup instructions for most distributions. The setup of IPv6 on Debian Linux can be found at http://people.debian.org/~csmall/ipv6/setup.html and http://www.mailgate.org/linux/linux.debian.ipv6/msg00137.html.
The BSD Unix implementations have their own IPv6 documentation each, interresting URLs are http://www.netbsd.org/Documentation/network/ipv6/ for NetBSD, http://www.freebsd.org/doc/en_US.ISO_8859-1/books/handbook/ipv6-implementation.html for FreeBSD and pages 61 and 62 of the BSD/OS Administrator's Guide at http://www.bsdi.com/products/internet/release-notes/rn42.pdf.
Projects working on implementing IPv6 protocol stacks for free Unix like operating systems are KAME for BSD and USAGI for Linux. Their web sites can be found at http://www.kame.net/ and http://www.linux-ipv6.org/. A list of host and router implementations can be found at http://playground.sun.com/pub/ipng/html/ipng-implementations.html.
Besides the official RFC archive at ftp://ftp.isi.edu/in-notes, information on IPv6 can be found at several web sites. First and foremost, the 6Bone's web page at http://www.6bone.net/ must be mentioned. 6Bone was started as the testbed for IPv6, and is now an important part of the IPv6-connected world. Other web pages that contain IPv6-related contents include http://www.ipv6.org/, http://playground.sun.com/pub/ipng/html/ and http://www.ipv6forum.com/. Most of these sites carry further links - be sure to have a look!

$BLa$k(B	$B%[!<%`(B	$B?J$`(B
TCP/IP $B%M%C%H%o!<%-%s%035O@(B		$B%I%a%$%s%M!<%`%7%9%F%`(B - DNS