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<H2><A NAME="s5">5. $B?=$79~$_$K$D$$$F(B</A></H2>
<P>$B4pK\E*$K$O<!$N<j=g$rF'$`$3$H$K$J$j$^$9!#(B
<UL>
<LI>$B$"$J$?$N4D6-$,(B ADSL $B$rMxMQ$9$k$N$KI,MW$J2<5-$N>r7o$rK~$?$7$F$$$k$+$r%A%'%C%/(B
$B$9$k!#(B</LI>
<LI>$BEEOC2q<R$H(B ISP $B$rA*$s$G!"$=$3$,$I$N$h$&$J@_Dj$rDs6!$7$F$$$k$+$rD4$Y$k!#(B</LI>
<LI>$BEEOC2q<R$KO"Mm$7$F!"?=$79~$`!#(B</LI>
</UL>
-->
<P>
<P>$B%5!<%S%9$r?=$79~$`$H!"EEOC2q<R$O3+DLF|$rO"Mm$7$F$/$k$O$:$G$9!#;d$N>l9g$O!"(B
$BEEOC2q<R$K0l2sEEOC$7$?$@$1$G!"A4$F$N<jB3$-$,40N;$7$^$7$?!#EEOC2q<R$O(B ISP
$B$H$N7@Ls$b<jG[$7$F$/$l$^$7$?!#0l=54V8e$KL5;vM=DjDL$j$K3+DL$7$^$7$?!#(B
<P>
<H2><A NAME="ss5.1">5.1 $B2HDm$GI,MW$J5!:`(B</A>
</H2>
<P>
<UL>
<LI> ADSL $B$,;HMQ$G$-$k(B NIC
<P>ADSL ANT $B$KD>@\@\B3$9$k%7%9%F%`(B(PC$B!"%o!<%/%9%F!<%7%g%s!"%k!<%?!<!"%O%V(B)
<P>
</LI>
<LI> $B20FbG[@~(B
<P>$BEEOC2q<R$H$N6-3&E@(B($B2H$N30JI(B)$B$+$i(B PC $B$,CV$$$F$"$k$H$3$m$^$GG[@~(B(2 $B?D$+(B 4$B?D(B)
$B$r$7$J$1$l$P$J$j$^$;$s!#4{$K$"$kEEOC@~$r$D$+$&$3$H$b2DG=$G$9$,!"$3$N@~$K$O(B
ANT $B$7$+$D$J$2$i$l$J$/$J$j!"B>$NEEOC$dA}@_$7$?$$5!4o$r2?$b@\B3$G$-$J$/(B
$B$J$j$^$9!#EEOC2q<R$b$7$/$O;\9)6H<T$K?7$7$$@~$r0z$$$F$b$i$C$F!"$=$l$K@\B3(B
$B$9$k$3$H$b$G$-$^$9!#(B
<P>
</LI>
<LI>$B%$%s%9%H!<%k(B
<P>
$BC/$,20Fb$NG[@~$r$9$kM=Dj$G$7$g$&$+!)(B $B%9%W%j%C%?!<$r;H$C$?>l9g$J$i<+J,$GG[@~(B
$B$9$k$3$H$,$G$-$^$9(B($B;d$NCO0h$NEEOC2q<R$OG[@~%-%C%H$HG[@~$N@bL@=q$rMQ0U$7$F(B
$B$$$^$7$?(B)$B!#$b$A$m$sEEOC2q<R$KDI2CNA6b$r;YJ'$C$FMj$a$P!"G[@~$r$7$F$/$l$^$9!#(B
$B<+J,$G$d$l$P(B 150-250 $B%I%k@aLs$G$-$^$9!#;d$O$=$&$7$^$7$?!#$?$@<+J,$NF,$rG:$^(B
$B$;$?$/$J$1$l$P!"Mj$s$G$d$C$F$b$i$C$?J}$,$$$$$G$7$g$&!#$3$N%I%-%e%a%s%H$K=q(B
$B$$$F$"$k$d$jJ}$rFI$s$G$+$i!"$I$&$9$k$+7h$a$?J}$,$$$$$H;W$$$^$9!#<+J,$G$d$k!"(B
$B$d$i$J$$$N4p=`$O!"EEOC@~$d(B LAN $B$NG[@~$r>oF|:"9T$J$C$F$$$k$+$I$&$+$G$9!#G[@~(B
$B$9$k$3$H$,6l$K$J$i$J$$$J$i!"<+J,$G$d$k$3$H$r9M$($F$_$k$Y$-$G$9!#$b$7$=$&$G(B
$B$J$+$C$?$j!"2q<R$,HqMQ$r=P$7$F$/$l$=$&$J$i!"6H<T$KMj$s$@$[$&$,$$$$$G$7$g$&!#(B
<P>
<P>
</LI>
</UL>
<P>
<H2><A NAME="ss5.2">5.2 $BEEOC2q<R$rA*$V(B</A>
</H2>
<P>
<UL>
<LI>$BEEOC2s@~$NIJ<A(B
<P>$B$?$$$F$$$N>l9g!"EEOC2q<R$O?=$79~$_$r<u$1IU$1$k0JA0$K!"2s@~$,(B ADSL $B$GMxMQ$G$-(B
$B$k$+$I$&$+$r%F%9%H$7$F$$$^$9!#$^$:2H$,EEOC2q<R$+$i(B 2-3 $B%^%$%k(B(3.4-4.9 km)
$B0JFb$G$"$kI,MW$,$"$j$^$9!#$^$?2s@~$K$OAu2Y%3%$%k!"%V%j%C%8!&%?%C%W!"(B
DAML $B$J$I$N>c32$H$J$k$b$N$,$J$$I,MW$b$"$j$^$9!#(BISDN $B$rMxMQ$G$-$k(B
$B2s@~$J$i$P(B ADSL $B$b$?$$$F$$$N>l9gMxMQ$G$-$^$9$,!"(BADSL $B$NJ}$,$h$j@)8B$,B?$/!"(B
$BJ]>Z$N8B$j$G$O$"$j$^$;$s!#0J>e$N>r7o$KEv$F$O$^$k>l9g$O!"EEOC2q<R$KAjCL$7$F(B
$B$_$F$/$@$5$$!#(B<BR>
$BLu<TCp!'(BDAML $B$O(B Digital Added Main Line $B$NN,>N!#8e=R$N%Z%"!&%2%$%s$HF15A8l!#(B
<P>
</LI>
<LI>$B$"$J$?$N7@Ls$7$F$$$kEEOC2q<R$G(B ADSL $B$rMxMQ$G$-$k$+(B
<P>ADSL $B$d(B DSLAM $B$r$"$J$?$NMxMQ$7$F$$$kCO6h$N6I$GK\Ev$KMxMQ$G$-$^$9$+!)(B
$B$b$&0lEY!"$"$J$?$NCO6h$GK\Ev$KMxMQ$G$-$k$+$rEEOC2q<R$K3NG'$7$F$/$@$5$$!#(B
$BJF9q$NBg<jEEOC2q<R$d!"(BADSL $B$K%?!<%2%C%H$rEv$F$F$$$k?76=%W%m%P%$%@$NB?$/$O!"(B
$B:#8e$N(B ADSL $B$N%W%i%s$r8xI=$7$F$$$^$9!#(B 99 $BG/;MH>4|$K$OBgI}$J%5!<%S%93HBg$,(B
$B4|BT$G$-$k$H;W$$$^$9!#(B
<P>
<P>
</LI>
<LI>$BDL?.B.EY(B
<P>ADSL $B$ODL?.B.EY$GNA6bBN7O$,J,$+$l$F$$$^$9$N$G!"%A%'%C%/$7$F$_$F$/$@$5$$!#(B
$BIaDL$O!"(B128k$B!"(B256k$B!"(B384k$B!"$+(B 1.5M $B$NAH9g$;$,2DG=$G$9!#$?$@$7!"2s@~$NIJ<A$K(B
$B$h$C$F?=$79~$a$kDL?.B.EY$,8BDj$5$l$k$+$b$7$l$^$;$s!#$5$i$K;d$N7@Ls$7$F$$$k(B
$BEEOC2q<R$O!"2HDm$G$NMxMQ$H%S%8%M%9$G$NMxMQ$G$O!"NA6bBN7O$,0[$J$C$F$$$^$7$?!#(B
<P>
</LI>
<LI>$BEEOC%5!<%S%9(B
<P>
ADSL $B$N%5!<%S%9$H$H$b$KEEOC%5!<%S%9$bDs6!$7$F$$$k%W%m%P%$%@$,$$$/$D$+$"$j$^$9(B
($B$?$$$F$$$OBg<j$NEEOC2q<R$G$9(B)$B!#$3$N%5!<%S%9$r<u$1$k$H!"$I$NHV9f(B($B?7$7$$$b$N$+(B
$B=>Mh$N$b$N$+$I$A$i$+(B)$B$rEEOC$K$9$k$+$r7h$a$kI,MW$,$"$j$^$9!#$D$^$j!"4{@_$NEEOC(B
$B$r(B ADSL $B$KCV$-49$($F$7$^$&$+!"?7$7$$HV9f$rEEOC$K3d$jEv$F$k$+$G$9!#(BISDN
$B%5!<%S%9$rMxMQ$7$F$$$F$=$N2s@~$r;H$$$?$$$J$i!"$^$:(B ISDN $B%5!<%S%9$r;_$a$kI,MW(B
$B$,$"$j$^$9!#(B
$B$3$N%5!<%S%9$rDs6!$7$F$$$J$$EEOC2q<R(B($BIaDL$O(B DSL $B@lLg$N%W%m%P%$%@(B)$B$b$"$j$^$9(B
$B$+$i!"Cm0U$,I,MW$G$9!#(B
<P>
</LI>
</UL>
<P>
<H2><A NAME="ss5.3">5.3 ISP $B$rA*$V(B</A>
</H2>
<P>
<UL>
<LI>ISP $B$K?=$79~$`A0$K(B
<P>ISP $B$rA*$VA0$K(B ADSL $B%5!<%S%9$r<u$1$kEEOC2q<R$H7@Ls$9$kI,MW$,$"$j$^$9!#(B
ISP $B$,$=$NEEOC2q<R$K@\B3$5$l$F$$$k$+$I$&$+%A%'%C%/$7$F$/$@$5$$!#(B
$B@\B3$5$l$F$$$J$+$C$?$i!"B>$N(B ISP $B$K>h$j49$($k$+!"(BISP $B$K@\B3$7$F$/$l$k(B
$B$h$&@bF@$9$k$+!"$5$b$J$1$l$P(B ADSL $B$r;HMQ$9$k$N$r$"$-$i$a$k$+$N$I$A$i$+(B
$B$G$9!#(B
<P>
<P>
</LI>
<LI> IP $B%"%I%l%9$H%5%V%M%C%H(B
<P>$B$^$:CN$i$J$1$l$P$J$i$J$$$3$H$O(B $B$"$J$?$K3d$jEv$F$i$l$k(B IP $B%"%I%l%9$,@EE*$J(B
$B$b$N$J$N$+!"F0E*$J$b$N$J$N$+$H$$$&$3$H$G$9!#F0E*$K3d$jEv$F$i$l$k>l9g$O(B DHCP
$B$,;H$o$l$F$$$^$9!#(B
<P>$B@EE*$J>l9g$O!"(BISP $B$O(B ADSL $B2s@~$K3d$jEv$F$i$l$l$F$$$k(B 1 $B$+$i(B 254 $B$N(B IP
$B%"%I%l%9$NFb$N$I$l$+$r!"$=$N%"%I%l%9$KBP1~$7$?2DJQD9$N%5%V%M%C%H!&%^%9%/(B
(VLSM)$B$H$H$b$K3d$jEv$F$i$l$k$G$7$g$&!#(B
<P>$B;d$N7@Ls$7$F$$$k(B ISP $B$O!"%[%9%H$N?t$,A}$($kEY$KDI2CNA6b$r@A5a$7$^$9!#(B
$B$*$=$i$/BgJ}$N4D6-$G$O!"(B1 $BBf$N%[%9%H(B(32 $B%S%C%H!&%^%9%/(B)$B$+(B 6 $BBf$N%[%9%H(B
(29 $B%S%C%H(B $B%^%9%/(B)$B$G;HMQ$7$F$$$k$N$G$O$J$$$+$H;W$$$^$9!#$3$N0UL#$,J,$+$i(B
$B$J$$$J$i$P!"(B<EM>IP-Subnetting HOWTO</EM> $B$rFI$s$G$_$F$/$@$5$$!#(B
$B$^$?J#?t%[%9%H$N%5%V%M%C%H$r3d$jEv$F$k>l9g!"(B1 $B$D$O(B ISP $B$N%k!<%?$N%"%I%l%9(B
$BMQ$K<h$C$F$*$/I,MW$,$"$j$^$9(B($B$D$^$j(B 6 $BBfJ,$N%[%9%H$N%5%V%M%C%H$NFb$G(B
$B<+J,$N%^%7%s$K;HMQ$G$-$k$N$O(B 5 $BBfJ,$H$$$&$3$H$G$9(B)$B!#$^$?(B IP $B%^%9%+%l!<(B
$B%G%#%s%0(B(HOWTO $B;2>H$N$3$H(B)$B$d%M%C%H%o!<%/!&%"%I%l%9!&%H%i%s%9%l!<%7%g%s(B
(NAT) $B$r;H$&$3$H$N$h$C$F!"$"$J$?$N(B LAN $B$K@\B3$5$l$F$$$k2?Bf$b$N%^%7%s$+$i(B
$BMxMQ$9$k$3$H$b2DG=$K$J$j$^$9!#$b$7(B 30 $BBf0J>e$N%[%9%H$r@\B3$7$?$$$J$i!"(B
$B$=$N;]$r=q$$$??=@A=q$r:n@.$7$F$/$@$5$$!#(B
<P>
<P>
</LI>
<LI>$B%2!<%H%&%(%$$N%"%I%l%9(B
<P>$B%G%U%)%k%H$N%2!<%H%&%(%$!&%"%I%l%9$K$D$$$F$O!"$"$J$?$N%5%V%M%C%H$NCf$N(B
$B:G=i$N%[%9%H(B $B%"%I%l%9$r;HMQ$7$F$/$@$5$$(B($B$?$H$($P!"%5%V%M%C%H$N%l%s%8$H(B
$B%"%I%l%9$,(B 192.168.1.240/29 $B$H$9$k$H(B $B%[%9%H$O(B 241 $B$+$i(B 246 $B$NCf$+$i3d$jEv$F(B
$B$F!"(B241 $B$,%G%U%)%k%H!&%2!<%H%&%(%$$K$J$j$^$9(B)$B!#(B
<P>
<P>
</LI>
<LI> MAC $B%"%I%l%9$N?t(B
<P>ANT $B$O(B $BJ#?t$N(B MAC $B%"%I%l%9$,MxMQ2DG=$G$9!#$?$H$($P;d$N;H$C$F(B
$B$$$k$b$N$O!":GBg(B 16 $BBf$N(B MAC $B%"%I%l%9$,MxMQ$G$-$^$9!#$3$N$/$i$$$"$l$P(B
$B$?$$$F$$$N4D6-$G$O==J,$@$H;W$$$^$9!#$7$+$7$b$C$H$?$/$5$s$N%^%7%s$r(B
ANT $B$KD>@\@\B3$7$F$$$k%O%V$K@\B3$7$?$$$J$i!":GBg2?Bf$^$G2DG=$J$N$+$^$:(B
$B3NG'$9$Y$-$G$7$g$&!#(B
<P>
</LI>
<LI> DNS $B%5!<%P(B
<P>ISP $B$O(B $B%I%a%$%sL>$N8!:w$r$9$k$?$a$N(B 1 $BBf0J>e$N(B DNS $B%5!<%P$rMQ0U$7$F$$$k$O$:(B
$B$G$9!#(BISP $B$NCf$K$O(B $B8DJL$N%5!<%S%9$H$7$F%I%a%$%s!&%M!<%`!&%5!<%P$N%[%9%F%#%s%0(B
$B%5!<%S%9(B($B%W%i%$%^%j$b$7$/$O%;%3%s%@%j(B $B%5!<%P$N$$$:$l$+(B)$B$rDs6!$7$F$$$k$H$3$m(B
$B$b$"$j$^$9!#>\$7$/$O(B ISP $B$KAjCL$7$F$_$F$/$@$5$$!#(B
<P>
</LI>
<LI>$B%f!<%6(B ID $B$H%Q%9%o!<%I(B
<P>$BIaDL(B ISP $B$O(B shell $B%"%+%&%s%H(B $B%5!<%S%9$d%a!<%k$=$NB>$N%5!<%S%9MQ$K(B
$B%f!<%6L>!?%Q%9%o!<%I$r;Y5k$7$^$9!#;d$N7@Ls$7$F$$$k(B ISP $B$G$O!"8D?M(B web $BMQ(B
$B$NNN0h$H%a!<%k!&%5!<%PB>$$$/$D$+$N%5!<%S%9$rDs6!$7$F$$$^$9!#(B
<P>
</LI>
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