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<TITLE>Linux IP Masquerade HOWTO: $B$h$/$"$k<ALd(B (FAQ) </TITLE>
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<A HREF="IP-Masquerade-HOWTO-8.html">$B<!$N%Z!<%8(B</A>
<A HREF="IP-Masquerade-HOWTO-6.html">$BA0$N%Z!<%8(B</A>
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<HR>
<H2><A NAME="s7">7. $B$h$/$"$k<ALd(B (FAQ) </A></H2>
<P>
<P>
<A NAME="FAQ"></A> <P>$B$3$3$K:\$;$k$KAj1~$7$$<ALd$r;W$$$D$$$?$i!"(B
<A HREF="mailto:dranch@trinnet.net">dranch@trinnet.net</A> $B$KAw$C$F$/$@$5$$!#(B
$B<ALd$H!"E,@Z$J2sEz$r!"J,$+$j$d$9$/=q$$$FD:$1$l$P9,$$$G$9!#(B
$B59$7$/$*4j$$$7$^$9!#(B
<P>
<A NAME="MASQ-supported-Distributions"></A> <P>
<H2><A NAME="ss7.1">7.1 IP $B%^%9%+%l!<%I$r%5%]!<%H$7$F$$$k(B Linux $B%G%#%9%H%j%S%e!<%7%g%s$O$I$l$G$9$+!)(B</A>
</H2>
<P>Linux $B%G%#%9%H%j%S%e!<%7%g%s$,(B IP $B%^%9%+%l!<%I$r%5%]!<%H$7$F$$$J$/$F$b?4G[$O$$$j$^$;$s!#$3$N(B HOWTO $B$NA0$NJ}$K=q$+$l$F$$$k$H$*$j$K%+!<%M%k$N:F%3%s%Q%$%k$r9T$&$@$1$G$9!#(B
<P>$BCm0U(B - $B$3$NI=$KDI2C$G$-$kJ}$O(B
<A HREF="mailto:ambrose@writeme.com">ambrose@writeme.com</A> $B$^$?$O(B
<A HREF="mailto:dranch@trinnet.net">dranch@trinnet.net</A> $B08$K%a!<%k$rAw$C$F$/$@$5$$!#(B
<P>
<P>
<P>
<UL>
<LI>Caldera < v1.2 : NO - ?</LI>
<LI>Caldera v1.3 : YES - 2.0.35 based</LI>
<LI>Caldera v2.2 : YES - 2.2.5 based</LI>
<LI>Caldera eServer v2.3 : YES - ? based</LI>
<LI>Debian v1.3 : NO - ?</LI>
<LI>Debian v2.0 : NO - ?</LI>
<LI>Debian v2.1 : YES - 2.2.1 based</LI>
<LI>Debian v2.2 : YES - 2.2.15 based</LI>
<LI>DLX Linux v? : ? - ?</LI>
<LI>DOS Linux v? : ? - ?</LI>
<LI>FloppyFW v1.0.2 : ? - ?</LI>
<LI>Hal91 Linux v? : ? - ?</LI>
<LI>Linux Mandrake v5.3 : YES - ?</LI>
<LI>Linux Mandrake v6.0 : YES - 2.2.5 based</LI>
<LI>Linux PPC vR4 : NO - ?</LI>
<LI>Linux Pro v? : ? - ?</LI>
<LI>LinuxWare v? : ? - ?</LI>
<LI>Mandrake v6.0 : YES - ?</LI>
<LI>Mandrake v6.1 : YES - ?</LI>
<LI>Mandrake v7.0 : YES - 2.2.14</LI>
<LI>Mandrake v7.1 : YES - 2.2.15</LI>
<LI>Mandrake v7.2 : YES - 2.2.17</LI>
<LI>MkLinux v? : ? - ?</LI>
<LI>MuLinux v3rl : YES - ?</LI>
<LI>Redhat < v4.x : NO - ?</LI>
<LI>Redhat v5.0 : YES - ?</LI>
<LI>Redhat v5.1 : YES - 2.0.34 based</LI>
<LI>Redhat v5.2 : YES - 2.0.36 based</LI>
<LI>Redhat v6.0 : YES - 2.2.5 based</LI>
<LI>Redhat v6.1 : YES - 2.2.12 based</LI>
<LI>Redhat v6.2 : YES - 2.2.14 based</LI>
<LI>Redhat v7.0 : YES - 2.2.16 based</LI>
<LI>Slackware v3.0 : ? - ?</LI>
<LI>Slackware v3.1 : ? - ?</LI>
<LI>Slackware v3.2 : ? - ?</LI>
<LI>Slackware v3.3 : ? - 2.0.34 based</LI>
<LI>Slackware v3.4 : ? - ?</LI>
<LI>Slackware v3.5 : ? - ?</LI>
<LI>Slackware v3.6 : ? - ?</LI>
<LI>Slackware v3.9 : ? - 2.0.37pre10 based</LI>
<LI>Slackware v4.0 : ? - ?</LI>
<LI>Slackware v7.0 : YES - 2.2.13 based</LI>
<LI>Slackware v7.1 : YES - 2.2.16 based</LI>
<LI>Stampede Linux v? : ? - ?</LI>
<LI>SuSE v5.2 : YES - 2.0.32 base</LI>
<LI>SuSE v5.3 : YES - ?</LI>
<LI>SuSE v6.0 : YES - 2.0.36 based</LI>
<LI>SuSE v6.1 : YES - 2.2.5 based</LI>
<LI>SuSE v6.3 : YES - 2.2.13 based</LI>
<LI>Tomsrbt Linux v? : ? - ?</LI>
<LI>TurboLinux Lite v4.0 : YES - ?</LI>
<LI>TurboLinux v6.0 : YES - 2.2.12 based</LI>
<LI>TriLinux v? : ? - ?</LI>
<LI>Yggdrasil Linux v? : ? - ?
</LI>
</UL>
<P>
<A NAME="FAQ-Hardware"></A> <H2><A NAME="ss7.2">7.2 IP $B%^%9%+%l!<%I$r;H$&$?$a$N!"%O!<%I%&%'%"$K:GDc8BI,MW$J>r7o$H(B</A>
$B@)8B;v9`$r65$($F$/$@$5$$!#$=$l$G$I$s$J@-G=$,=P$^$9$+(B?</H2>
<P>
<P>16MB $B$N(B RAM $B$rHw$($?(B 486/66 $B$N%\%C%/%9$O!"(B 1.54Mb/s T1 $B$N%M%C%H%o!<%/$G(B
100% $B0J>e$NF/$-$r$7$^$7$?(B!
$B99$K%^%9%+%l!<%I$O(B 8MB $B$N(B RAM $B$rHw$($?(B 386SX-16s $B$N%^%7%s$G$H$F$bNI9%$K(B
$BF0:n$9$k$3$H$,CN$i$l$F$$$^$9!#(B
$B$7$+$7!"(BLinux IP $B%^%9%+%l!<%I$O(B 500 $B$r1[$($k%^%9%+%l!<%I%(%s%H%j!<$G(B
$B%9%i%C%7%s%0$r;O$a$F$7$^$&$3$H$KCm0U$7$F$/$@$5$$!#(B
$B!ZLuCm(B: $B%9%i%C%7%s%0(B: OS $B$,<B%a%b%j$H(B SWAP $B%9%Z!<%9$N4V$N%G!<%?$N(B
$BFI$_=q$-$KKX$I$N;~4V$rHq$7$F!"%W%m%0%i%`$,<B9T$G$-$J$/$J$k>u67$r8@$$$^$9!#![(B
<P>
<P>
<P>$B;d$,CN$k(B Linux IP $B%^%9%+%l!<%I$r0l;~E*$K2u$9$3$H$,$G$-$kM#0l$N(B
$B%"%W%j%1!<%7%g%s$O!"(B GameSpy $B$G$9!#(B
$B$J$<$+$H$$$&$H!"(B GameSpy $B$O;H$C$F$$$k%j%9%H$r%j%U%l%C%7%e$9$k$?$a$K(B
$BHs>o$KC;;~4V$K(B 10,000 $B$b$N%$%s%?!<%M%C%H@\B3$r9T$$$^$9!#(B
$B$3$N%;%C%7%g%s$N%?%$%`%"%&%HKx%^%9%+%l!<%I!&%F!<%V%k$O0lGU$K(B
$B$J$C$F$7$^$$$^$9!#(B
$B>\:Y$O(B FAQ $B$N(B
<A HREF="#No-Free-Ports">No-Free-Ports</A>
$B$N$H$3$m$r8+$F$/$@$5$$!#(B
<P>
<P>$B$=$l0J30$K$b!"(B
<P>
<P>Linus $B$,4IM}$7$F$$$k(B Linux $B%+!<%M%k$G$O(B TCP $B$H(B UDP $B3F!9$KBP$7$F(B 4096 $B$N(B
$BF1;~@\B3?t$N@)8B$,$"$j$^$9!#(B
$B$3$N@)8B$O!"%+!<%M%k%=!<%9$NCf$NCM$r$A$g$C$H$$$8$k$@$1$G4JC1$KJQ$($k$3$H$,(B
$B$G$-$^$9!#(B
2.2.x $B%+!<%M%k$N>l9g$O(B <EM>/usr/src/linux/include/net/ip_masq.h</EM> $B$r!"(B
2.0.x $B%+!<%M%k$N>l9g$O(B <EM>/usr/src/linux/net/ipv4/ip_masq.h</EM> $B$r(B
$BJT=8$7$^$9!#(B
$B$I$s$J$KK;$7$$%5!<%P!<$G$b@5$7$$%U%!%$%k$NCf$N@)8BCM$r:GBg(B 32000 $BKx(B
$BA}$d$;$PBg>fIW$G$7$g$&!#(B
$B$3$N?t$rJQ99$7$?$$>l9g$O!"(B PORT_MASQ_BEGIN & PORT_MASQ_END $B$NCM$r(B
32K $B$+$i(B 64K $BKx$NE,@Z$JHO0OFb$KJQ99$9$kI,MW$,$"$j$^$9!#(B
$B$3$3$KNc$r<($7$^$9(B -
<PRE>
PORT_MASQ_BEGIN=32000
PORT_MASQ_END=64000
</PRE>
<P>
<H2><A NAME="ss7.3">7.3 rc.firewall $B%3%^%s%I$r<B9T$7$?$i!V%3%^%s%I$,8+$D$+$j$^$;$s!W(B</A>
(command not found) $B$H$$$&%(%i!<$,H/@8$7$^$7$?!#$J$<$G$7$g$&(B?</H2>
<P>$B$I$N$h$&$K(B rc.firewall $B$r:n$j$^$7$?$+(B?
TELNET $B%&%$%s%I%&Fb$K%+%C%H%"%s%I%Z!<%9%H$r$7$^$7$?$+(B?
$B0?$O(B Windows/DOS $B%^%7%s$+$i(B FTP $B$r$7$^$7$?$+(B?
$B<!$N$3$H$r;n$7$F$_$F$/$@$5$$(B..
Linux $B%\%C%/%9$K%m%0%$%s$7!"(B "vim -b /etc/rc.d/rc.firewall" $B$r<B9T$7$F$_$F(B
$B$/$@$5$$!#(B
$B$=$7$F!"I=<($5$l$?9T$,$9$Y$F(B ^M $B$G=*$o$C$F$$$k$+$I$&$+8+$F$/$@$5$$!#(B
$B$b$7$=$&$J$i(B ^M $B$rA4$F:o=|$7$F!"$b$&0lEY$d$C$F$_$F$/$@$5$$!#(B
<P>
<P>
<H2><A NAME="ss7.4">7.4 $B@_Dj$rA4$F%A%'%C%/$7$^$7$?$,!"L$$@(B IP $B%^%9%+%l!<%I$rF0:n$5$;$k(B</A>
$B$3$H$,$G$-$^$;$s!#$I$&$7$?$i$h$$$G$7$g$&$+(B?</H2>
<P>
<UL>
<LI>$B$^$"Mn$ACe$$$F$/$@$5$$!#(B
$B$*Cc$G$b%3!<%R!<$G$b%=!<%@$G$b0{$s$G0lB)$D$$$F$/$@$5$$!#(B
$B5$;}$A$,Mn$ACe$$$?$i!"0J2<$K5-$5$l$F$$$k$3$H$r$d$C$F$_$F$/$@$5$$!#(B
Linux IP $B%^%9%+%l!<%I$OFq$7$/$O$J$$$N$G$9$,!"$"$J$?$K$H$C$F=i$a$F$N(B
$B35G0$,4v$D$+$"$j$^$9!#(B
<P>
</LI>
<LI>$B$b$&0lEY(B
<A HREF="IP-Masquerade-HOWTO-5.html#Testing">IP $B%^%9%+%l!<%I$N%F%9%H(B</A>
$B$N>O$NCf$K$"$kA4$F$N%9%F%C%W$r$d$C$F$_$F$/$@$5$$!#LdBj$rJz$($F$$$k=i$a$F$N%^%9%+%l!<%I!&%f!<%6$N(B 99% $B$O$3$3$r8+$F$$$^$;$s!#(B
<P>
</LI>
<LI>
<A HREF="http://www.indyramp.com/lists/masq/">IP Masquerade Mailing List Archives</A> $B$r%A%'%C%/$7$F$_$F$/$@$5$$!#62$i$/!"$"$J$?$N<ALd$dLdBj$O6&DL$N$b$N$G!"C1=c$J%"!<%+%$%VC5:w$G8+$D$1$k$3$H$,$G$-$k$G$7$g$&!#(B
<P>
</LI>
<LI>
<A HREF="http://www.ecst.csuchico.edu/~dranch/LINUX/index-linux.html#TrinityOS">TrinityOS</A> $B$NJ8=q$r%A%'%C%/$7$F$_$F$/$@$5$$!#$=$l$O!"%+!<%M%k(B 2.0.x $B$H(B 2.2.x $B$NN>J}$G$N(B IP $B%^%9%+%l!<%I$H(B PPPd$B!"(BDialD$B!"(BDHCP$B!"(BDNS$B!"(Bsendmail $B$J$I!"$?$/$5$s$N%H%T%C%/%9$r%+%P!<$7$F$$$^$9!#(B
<P>
</LI>
<LI>ROUTED $B$^$?$O(B GATED $B$rAv$i$;$F$$$J$$$3$H$r3N$+$a$F$/$@$5$$!#(B
$B3N$+$a$k$K$O(B "ps aux | grep -e routed -e gated" $B$rAv$i$;$F$_$F$/$@$5$$!#(B
<P>
</LI>
<LI> IP $B%^%9%+%l!<%I!&%a!<%j%s%0%j%9%H$X<ALd$rEj9F$7$F$/$@$5$$(B
($B>\$7$/$O$3$N>O$N<!$N9`L\$r;2>H(B)$B!#(B
$B$G$b$3$l$O%a!<%j%s%0%j%9%H$N%"!<%+%$%V$+$iEz$($r8+$D$1$i$l$J$+$C$?>l9g$@$1$K(B
$B$7$F$/$@$5$$!#(B
$B<ALd$NCf$K(B
<A HREF="IP-Masquerade-HOWTO-5.html#Testing">IP $B%^%9%+%l!<%I$N%F%9%H(B</A>
$B$N>O$NCf$GMW5a$5$l$F$$$kA4$F$N>pJs$r4^$a$F$/$@$5$$!#(B
<P>
</LI>
<LI>$B4XO"$9$k(B Linux NNTP $B%K%e!<%9%0%k!<%W$X<ALd$rEj9F$7$F$/$@$5$$!#(B
<P>
</LI>
<LI>
<A HREF="mailto:ambrose@writeme.com">ambrose@writeme.com</A> $B$H(B
<A HREF="mailto:dranch@trinnet.net">dranch@trinnet.net</A> $B08$K%a!<%k$rAw$C$F$/$@$5$$!#;d$?$A$+$i$h$j(B IP $B%^%9%+%l!<%I!&%a!<%j%s%0%j%9%H$+$iJV;v$r$b$i$&5!2q$N$[$&$,B?$$$G$7$g$&!#(B
<P>
</LI>
<LI>$B$"$J$?$N@_Dj$r$b$&0lEY%A%'%C%/$7$F$/$@$5$$!#(B:-)</LI>
</UL>
<P>
<A NAME="Masq-List"></A> <H2><A NAME="ss7.5">7.5 IP $B%^%9%+%l!<%I!&%a!<%j%s%0%j%9%H$d(B IP $B%^%9%+%l!<%I!&3+H/<T(B</A>
$B%a!<%j%s%0%j%9%H$K;22C$7$?$j!"$=$N%"!<%+%$%V$r8+$k$K$O$I$&$9$l$PNI$$$G$9$+(B?</H2>
<P>2 $B$D$"$k(B Linux IP $B%^%9%+%l!<%I!&%a!<%j%s%0%j%9%H$K;22C$9$k$K$O(B 2 $B$D$N(B
$BJ}K!$,$"$j$^$9!#(B
$BBh(B 1 $B$NJ}K!$O(B
<A HREF="mailto:masq-request@indyramp.com">masq-request@indyramp.com</A> $B$K%a!<%k$rAw$k$3$H$G$9!#(B
Linux IP $B%^%9%+%l!<%I!&3+H/<T%a!<%j%s%0%j%9%H$K;22C$9$k$?$a$K$O(B
<A HREF="mailto:masq-dev-request@indyramp.com">masq-dev-request@indyramp.com</A> $B$K%a!<%k$rAw$j$^$9!#(B
$B>\:Y$O2<$N5-=R$r;2>H$7$F$/$@$5$$!#(B
<P>
<P>
<P>
<UL>
<LI>$B%a!<%k$G$N?=$79~$_(B - $B%a!<%k%a%C%;!<%8$N7oL>$^$?$OK\J8$N$I$A$i$+$NCf$K(B
"subscribe" $B$H$$$&C18l$r=q$$$F$/$@$5$$!#(B
$B$b$7(B IP $B%^%9%+%l!<%I!&%a!<%j%s%0%j%9%H$"$k$$$O(B IP $B%^%9%+%l!<%I!&3+H/<T(B
$B%a!<%j%s%0%j%9%H$N%@%$%8%'%9%HHG$N$_$N?=$79~$_$r$7$?$$$N$J$i!"(B
$B%a!<%k%a%C%;!<%8$N7oL>$"$k$$$OK\J8$NCf$K(B "subscribe digest" $B$H$$$&C18l$r(B
$B=q$$$F$/$@$5$$(B ($B$=$N=5$N%a!<%j%s%0%j%9%H>e$N%a!<%k$NA4$F$,Bg$-$J(B
1 $B$D$N%a!<%k$K$J$C$FAw$i$l$^$9(B)$B!#(B
<P>$B%5!<%P$,$"$J$?$N%j%/%(%9%H$r<u$1<h$l$P!"%a!<%j%s%0%j%9%H$KEPO?$7!"(B
$B%Q%9%o!<%I$,Aw$i$l$F$-$^$9!#(B
$B$3$N%Q%9%o!<%I$rJ]B8$7$F$*$$$F$/$@$5$$!#(B
$B8e$G%j%9%H$+$iEPO?$r<h$j>C$7$?$j!"%*%W%7%g%s$rJQ99$9$k$?$a$KI,MW$G$9!#(B
<P>
</LI>
</UL>
<P>$BBh(B 2 $B$NJ}K!$O!"(B WWW $B%V%i%&%6$r;H$$$^$9!#(B
IP $B%^%9%+%l!<%I!&%a!<%j%s%0%j%9%H$K;22C$7$?$$>l9g$O(B
<A HREF="http://www.indyramp.com/masq-list/">http://www.indyramp.com/masq-list/</A> $B$K$"$k%U%)!<%`$r%"%/%;%9$7!"(B
IP $B%^%9%+%l!<%I!&3+H/<T%a!<%j%s%0%j%9%H$K;22C$7$?$1$l$P(B
<A HREF="http://www.indyramp.com/masq-dev-list/">http://www.indyramp.com/masq-dev-list/</A> $B$K$"$k%U%)!<%`$K(B
$B%"%/%;%9$7$F!"?=$79~$_$r$7$^$9!#(B
<P>
<P>
<P>$BM=Ls$9$k$HM=Ls$5$l$?%a!<%j%s%0%j%9%H$+$i%a!<%k$,Mh$^$9!#M=Ls$7$?%f!<%6$bM=Ls$7$F$$$J$$%f!<%6$b(B 2 $B$D$N%a!<%j%s%0%j%9%H$N%"!<%+%$%V$K$O%"%/%;%9$9$k$3$H$,$G$-$^$9!#M=Ls$N$?$a$N>\$7$$@bL@$O!">e5-(B 2 $B$D$N(B WWW URL $B$r;2>H$7$F$/$@$5$$!#(B
<P>$B:G8e$K$J$j$^$9$,!":G=i$KM=Ls$7$?%"%+%&%s%H(B/$B%"%I%l%9$+$i$7$+(B
IP $B%^%9%+%l!<%I!&%a!<%j%s%0%j%9%H$KEj9F$G$-$J$$$3$H$KCm0U$7$F$/$@$5$$!#(B
<P>
<P>$B%a!<%j%s%0%j%9%H$"$k$$$O%a!<%j%s%0%j%9%H!&%"!<%+%$%V$K4X$7$F2?$i$+$NLdBj$,$"$l$P(B
<A HREF="mailto:masq-owner@indyramp.com">Robert Novak</A> $B$KO"Mm$7$F$/$@$5$$!#(B
<P>
<A NAME="what-is-masq"></A> <H2><A NAME="ss7.6">7.6 IP $B%^%9%+%l!<%I$O!"%W%m%-%7$d(B NAT $B%5!<%S%9$H$I$&0c$&$N$G$7$g$&$+(B?</A>
</H2>
<P>
<PRE>
$B%W%m%-%7(B: $B%W%m%-%7%5!<%P$O<!$N$b$N$GMxMQ2DG=$G$9(B: Win95, NT, Linux,
Solaris$B$J$I!#(B
$BD9=j(B - + 1 IP $B%"%I%l%9(B: $B0B2A(B
+ $B@-G=8~>e$N$?$a$K%-%c%C%7%s%0!&%*%W%7%g%s$,$"$k!#(B
(www $BB>(B)
$BC;=j(B - - $B%W%m%-%7%5!<%P$K7R$,$k%/%i%$%"%s%H$N(B
$B%"%W%j%1!<%7%g%s$O%W%m%-%7!&%5!<%S%9(B (SOCKS) $B$r(B
$B%5%]!<%H$7!"3n$D%W%m%-%7%5!<%P$r;H$&$h$&$K@_Dj(B
$B$7$J$1$l$P$J$i$J$$!#(B
- WWW $B$N%+%&%s%?$HE}7W>pJs$,68$C$F$7$^$$$^$9!#(B
$B%W%m%-%7%5!<%P$O(B IP $B%^%9%+%l!<%I$HF1MM$K!"(B 1 $B$D$N%0%m!<%P%k(B IP
$B%"%I%l%9$N$_;HMQ$7!"%W%i%$%Y!<%H(B LAN $B>e$N%/%i%$%"%s%H(B (WWW $B%V%i%&%6(B
$BEy(B) $B$X$NK]Lu5!$H$7$FF0:n$7$^$9!#(B
$B$3$N%W%m%-%7%5!<%P$O!"(B1 $B$D$N%$%s%?!<%U%'!<%9$K7R$,$k%W%i%$%Y!<%H(B
$B%M%C%H%o!<%/$+$i(B TELNET, FTP, WWW $BEy$N$h$&$J@\B3MW5a$r<u$1<h$j$^$9!#(B
$B$=$7$F!"$"$?$+$b%m!<%+%k%\%C%/%9>e$NC/$+$,@\B3MW5a$rH/$7$F$$$k$+$N(B
$B$h$&$K!"=gHV$K$3$l$i$N%j%/%(%9%H$r30It$KAw?.$7$^$9!#(B
$B1s3V$N%$%s%?!<%M%C%H%5!<%P$,MW5a$5$l$?>pJs$rAw$jJV$7$F$/$k$H!"(B
$B:#EY$OFbIt%/%i%$%"%s%H$K:FEY(B TCP/IP $B%"%I%l%9$rK]Lu$7!"%H%i%U%#%C%/$r(B
$BAw$j$^$9!#(B
$B$3$N$?$a!"$=$l$O%W%m%-%7%5!<%P!ZLuCm(B: $BBeM}%5!<%P![$H8F$P$l$^$9!#(B
$BCm0U(B -
$B$"$i$f$k%"%W%j%1!<%7%g%s$b!"%M%C%H%o!<%/FbIt$N%^%7%s$G(B
$B;H$$$?$$>l9g$O!"(B Netscape $B$d4v$D$+$NM%=($J(B TELNET $B$d(B
FTP $B%/%i%$%"%s%H$N$h$&$K!"%W%m%-%7%5!<%P$N%5%]!<%H$,(B
$B$5$l$F$$$J$1$l$P$J$j$^$;$s!#(B
$B%W%m%-%7%5!<%P$N%5%]!<%H$,$5$l$F$$$J$$%/%i%$%"%s%H(B
$B%W%m%0%i%`$OF0:n$7$^$;$s!#(B
$B%W%m%-%7%5!<%P$N$b$&0l$D$NMxE@$H$7$F!"%W%m%-%7%5!<%P$NCf$K$O(B
$B%-%c%C%7%s%0$N$G$-$k$b$N$b$"$k$3$H$G$9(B (Squid for WWW) $B!#(B
$BNc$($P(B 50 $BBf$N%W%m%-%7$5$l$?(B PC $B$,$"$C$F!"$=$l$i$,F1;~$K(B
Netscape $B$r5/F0$7$?$HA[A|$7$F$/$@$5$$!#(B
$B$=$l$i$,%G%U%)%k%H$N%[!<%`%Z!<%8(B URL $B$N$^$^%$%s%9%H!<%k$5$l$F(B
$B$$$?$J$i!"F1$8(B Netscape WWW $B%Z!<%8$,3F!9$N8D!9$N%3%s%T%e!<%?$K(B
$BJL!9$K(B 50 $B2s(B WAN $B%j%s%/$r2p$7$FAw$i$l$k$3$H$K$J$j$^$9!#(B
$B%-%c%C%7%e$r;}$C$?%W%m%-%7%5!<%P$G$O!"(B 1 $B2s$@$1$,%W%m%-%7%5!<%P(B
$B$K$h$C$F%@%&%s%m!<%I$5$l!"%W%m%-%7$5$l$?%^%7%s$O%W%m%-%7Fb$N(B
$B%-%c%C%7%e$+$i(B WWW $B%Z!<%8$r<u$1<h$j$^$9!#(B
$B$3$l$O%$%s%?!<%M%C%H@\B3Cf$NBS0hI}$r@aLs$9$k$@$1$G$J$/!"(B
$B%W%m%-%7$5$l$?%^%7%s$K$H$C$FHs>o$KAa$$1~EzB.EY$K$J$j$^$9!#(B
$B%^%9%+%l!<%I(B- IP $B%^%9%+%l!<%I(B $B$O!"(BLinux $B5Z$S(B Zytel Prestige128, Cisco 770,
$B5Z$S(B NetGear ISDN routers $BEy!"4v$D$+$N(B ISDN $B%k!<%?$GMxMQ2DG=$G$9!#(B
1$BBPB?(BIP$B$N(B
NAT $BD9=j(B - + 1 IP$B%"%I%l%9$@$1$,I,MW!#(B($B0B2A(B)$B!#(B
+ $BFCJL$J%"%W%j%1!<%7%g%s$K$h$k%5%]!<%H$rMW5a$7$J$$!#(B
+ $B%U%!%$%"%&%)!<%k!&%=%U%H%&%'%"$r;HMQ$9$k$N$G!"(B
$B%M%C%H%o!<%/$,$h$j0BA4$K$J$k!#(B
$BC;=j(B - - Linux $B%\%C%/%9$+!"FCJL$J(B ISDN $B%k!<%?$rI,MW$H$9$k!#(B
($BB>$N@=IJ$OEk:\$7$F$$$k$+$bCN$l$^$;$s$,(B..)
- $BFbIt(B LAN $B$,:G=i$N%H%i%U%#%C%/$rH/@8$5$;$k$+!"0?$O(B
$BFCDj$N%]!<%H!&%U%)%o!<%G%#%s%0!&%=%U%H%&%'%"$,(B
$B%$%s%9%H!<%k$5$l$F$$$J$1$l$P!"30$+$iMh$k(B
$B%H%i%U%#%C%/$OFbIt(B LAN $B$K%"%/%;%9$G$-$J$$!#(B
$BB?$/$N(B NAT $B%5!<%P$O$3$N5!G=$r;}$C$F$$$^$;$s!#(B
- $BFC<l$J%W%m%H%3%k$r07$&$K$O%U%!%$%"%&%)!<%k!&(B
$B%j%@%$%l%/%?Ey$K$h$C$F8D!9$N@_Dj$,I,MW!#(B
Linux $B$O!"$3$N5!G=(B ( FTP$B!"(BIRC $BEy(B) $B$NA4LLE*$J(B
$B%5%]!<%H$r$7$F$$$k$,!"B?$/$N%k!<%?$O%5%]!<%H$7$F(B
$B$$$J$$!#(B (NetGear $B$O%5%]!<%H$7$F$$$^$9(B)
IP $B%^%9%+%l!<%I$d(B 1$BBPB?(B IP $B$N(B NAT $B$O!"%5!<%P$,(B IP $B%"%I%l%9K]Lu$r(B
$B9T$$!"FbIt%^%7%s$KBe$o$C$F$"$?$+$b%^%9%+%l!<%I%5!<%P$,@\B3MW5a$r(B
$BH/@8$7$F$$$k$+$N$h$&$K!"1s3V$N%5!<%P(B ($BNc$($P(B WWW $B%5!<%P(B) $B$K(B
$BAw$j=P$9$H$$$&0UL#$G!"%W%m%-%7%5!<%P$K;w$F$$$^$9!#(B
IP $B%^%9%+%l!<%I$H%W%m%-%7%5!<%P$N<g$J0c$$$O!"%^%9%+%l!<%I%5!<%P$O(B
$B%/%i%$%"%s%H%^%7%s$N@_DjJQ99$rA4$/I,MW$H$7$J$$$H$$$&$3$H$G$9!#(B
$B%/%i%$%"%s%H$N%G%U%)%k%H%2!<%H%&%'%$$H$7$F(B Linux $B%\%C%/%9$r;H$&$h$&$K(B
$B@_Dj$5$($9$l$P!"LdBj$J$/F/$-$^$9!#(B
$B$?$@(B RealAudio, FTP $BEy$r;H$&$K$O!"$=$l$i$NFCJL$J(B Linux $B%b%8%e!<%k$r(B
$B%$%s%9%H!<%k$9$kI,MW$,$"$j$^$9!#(B
$B99$K!"B?$/$N?M!9$O(B TELNET, FTP $BEy$N0Y$K(B IP $B%^%9%+%l!<%I(B $B$r(B
$B;HMQ$7$^$9!#(B
$B$=$l$K2C$($F!"99$K(B www $B$N%H%i%U%#%C%/$N@-G=$r>e$2$k0Y$K!"F1$8(B
Linux $B%\%C%/%9$NCf$K%-%c%C%e$rMx$+$;$?%W%m%-%7$r@_Dj$7$^$9!#(B
NAT - NAT $B%5!<%P$O(B Windows 95/NT, Linux, Solaris $B$d9b5i$J(B ISDN$B%k!<%?$G(B
$BMxMQ2DG=$G$9!#(B(Ascend $B<R@=$N$b$N$r=|$/(B)
$BD9=j(B - + $B@_Dj$,K-IY$K$G$-$k!#(B
+ $BFCJL$J%"%W%j%1!<%7%g%s%=%U%H$,MW$i$J$$!#(B
$BC;=j(B - - ISP $B$+$i%5%V%M%C%H(B IP $B%"%I%l%9$rLc$&I,MW$,$"$k!#(B
($B9b2A(B)
$B%M%C%H%o!<%/%"%I%l%9JQ49(B (Network Address Translation) $B$O!"(B
$B%Q%V%j%C%/%"%I%l%9$H$7$F;HMQ$G$-$kM-8z$J(B IP $B%"%I%l%9$r%W!<%k(B
$B$7$F$$$kH"$NL>A0$G$9!#(B
$BFbIt%M%C%H%o!<%/$+$i%$%s%?!<%M%C%H$K9T$-$?$$>l9g!"@\B3MW5a$r(B
$B=P$7$F$$$k%/%i%$%"%s%H$N%W%i%$%Y!<%H%"%I%l%9$r!"6u$$$F$$$kM-8z$J(B
$B%Q%V%j%C%/(B IP $B%"%I%l%9$K=q$-49$($F!"@\B3MW5a$r%$%s%?!<%M%C%H$K(B
$BH/9T$7$^$9!#(B
$B$=$N8e$N1~Ez%H%i%U%#%C%/$OA4$F!"(BNAT $B$N%Q%V%j%C%/(B IP $B%"%I%l%9$+$i(B
$B%W%i%$%Y!<%H!&%"%I%l%9$K=q$-49$($i$l$^$9!#(B
$B;HMQ$5$l$F$$$?%Q%V%j%C%/(B IP $B%"%I%l%9$,M=$a7h$a$i$l$?0lDj;~4V(B
$B;HMQ$5$l$J$$$H!"%Q%V%j%C%/(B IP $B%"%I%l%9$O%Q%V%j%C%/(B NAT $B%W!<%k$X(B
$BLa$5$l$^$9!#(B
NAT $B$K4X$9$kBg$-$JLdBj$O!"0lEY<+M3$K;H$($k%Q%V%j%C%/(B IP $B%"%I%l%9$,(B
$BA4$F;H$o$l$F$7$^$&$H!"$=$N8e$K%$%s%?!<%M%C%H%5!<%S%9$rMW5a$9$k(B
$B$I$N%W%i%$%Y!<%H%f!<%6$b!"%Q%V%j%C%/(B NAT $B%"%I%l%9$K6u$-$,=P$kKx$O(B
$BIT1?$K$b%$%s%?!<%M%C%H$rMxMQ$G$-$J$$$3$H$G$9!#(B
</PRE>
<P>
<P>$B?'!9$J7ABV$N(B NAT $B$K4X$9$k!"Hs>o$KI}$N9-$$M%$l$?5-=R$,$"$k$N$G8+$F$/$@$5$$(B -
<UL>
<LI>
<A HREF="http://www.suse.de/~mha/linux-ip-nat/diplom/nat.html">http://www.suse.de/~mha/linux-ip-nat/diplom/nat.html</A></LI>
</UL>
<P>$B$3$3$O!"(B NAT $B$K4X$7$F3X=,$9$k$h$$%5%$%H$G$9!#(BURL $B$NB?$/$O8E$$$G$9$,!"(B
$B$^$@M-8z$G$9(B -
<P>
<UL>
<LI>
<A HREF="http://www.linas.org/linux/load.html">http://www.linas.org/linux/load.html</A></LI>
</UL>
<P>$B$3$3$O!"(B Linux $B$dB>$N%W%i%C%H%U%)!<%`MQ$K!"B>$N(B NAT $B$K$h$k2r7hJ}K!$r(B
$BCN$k$?$a$NNI$$(B URL $B$G$9(B -
<P>
<P>
<UL>
<LI>
<A HREF="http://www.uq.net.au/~zzdmacka/the-nat-page/">http://www.uq.net.au/~zzdmacka/the-nat-page/</A></LI>
</UL>
<P>
<P>
<H2><A NAME="ss7.7">7.7 GUI $B$N(B $B%U%!%$%"!<%&%)!<%k:n@.4IM}%D!<%k$O$"$j$^$9$+(B?</A>
</H2>
<P>
<P>$B$O$$(B! $B%f!<%6!&%$%s%?!<%U%'!<%9$dJ#;($5$J$I$K$*$$$F:9$,$"$j!"BgItJ,$O(B
IPFWADM $B%D!<%kMQ$@$1$G$9$,!"$H$F$bNI$$$b$N$,$"$j$^$9!#(B
$B$3$3$K%"%k%U%!%Y%C%H=g$KMxMQ2DG=$J%D!<%k$N%j%9%H$,$"$j$^$9!#(B
$BB>$N$b$N$rCN$C$F$$$k$+!"$I$l$,NI$$$H$+!"0-$$$H$+!";H$($J$$$H$+$N9M$($,(B
$B$"$C$?$i!"(B David $B$K%a!<%k$7$F$/$@$5$$!#(B
<P>
<P>
<UL>
<LI>John Hardin $B$N(B
<A HREF="http://www.wolfenet.com/~jhardin/ipfwadm.html">IPFWADM Dot file generator</A> - IPCHAINS $B%P!<%8%g%s$,F0:n$7$^$9!#(B<P>
<P>$B!ZLuCm(B: $B>e5-(B web site $B$G$9$,!"(B ipchains $B%P!<%8%g%s$OB8:_$7$^$;$s!#(B
$B:n@.$7$?%k!<%k%U%!%$%k$r(B
<A HREF="http://www.wolfenet.com/~jhardin/ipfwadm.html">ipfwadm2ipchains</A> $B$GJQ49$7$FM_$7$$!"$H$"$j$^$9!#![(B
<P>
</LI>
<LI>Sonny Parlin $B$N(B
<A HREF="http://www.innertek.com">fBuilder</A> -
FWCONFIG $B:n<T$+$i!"$3$N?7$7$$2r7hJ}K!$O40A4$J(B WWW $B%Y!<%9$G!"(B
$B>iD9@-%*%W%7%g%sEy$,$"$j!"(B IPCHAINS $B$H(B Netfilter $B$NN>J}$KBP1~$7$F$$$^$9!#(B
<P>
</LI>
<LI>William Stearns $B$N(B
<A HREF="http://www.pobox.com/~wstearns/mason/">Mason</A> - $B%k!<%k%;%C%H$rD>@\:n$k%?%$%W$N%7%9%F%`(B</LI>
</UL>
<P>
<P>
<H2><A NAME="ss7.8">7.8 IP $B%^%9%+%l!<%I$OF0E*$K3d$jEv$F$i$l$?(B IP $B%"%I%l%9$GF0:n$7$^$9$+(B?</A>
</H2>
<P><B>$B$O$$(B</B>$B!"(BPPP $B0?$O(B DHCP/BOOTp $B%5!<%PEy$K$h$C$F!"(B ISP $B$+$i(B
$B3d$jEv$F$i$l$?F0E*(B IP $B%"%I%l%9$GF0:n$7$^$9!#(B
$BM-8z$J%$%s%?!<%M%C%H(B IP $B%"%I%l%9$r;}$D8B$j!"F0:n$9$kH&$G$9!#(B
$BL^O@!"@EE*$J(B IP $B$G$bF0:n$7$^$9!#(B
IPFWADM/IPCHAINS $B$r;H$C$?6/$$%k!<%k%;%C%H$r;H$*$&$H$7$F$$$k$+!"(B
$B%]!<%HE>Aw$r;H$*$&$H$7$F$$$k$J$i!"$3$l$i$N%k!<%k%;%C%H$O(B IP $B%"%I%l%9$,(B
$BJQ99$5$l$kEYKh$K:F<B9T$7$J$1$l$P$J$j$^$;$s!#(B
$B6/$$%U%!%$%"%&%)!<%k!&%k!<%k%;%C%H$HF0E*(B IP $B%"%I%l%9$K4X$9$kJdB-@bL@$O(B
<A HREF="http://www.ecst.csuchico.edu/~dranch/LINUX/index-linux.html#TrinityOS">TrinityOS - Section 10</A> $B$K$"$j$^$9$N$G8+$F$/$@$5$$!#(B
<P>
<P>
<H2><A NAME="ss7.9">7.9 $B%1!<%V%k!&%b%G%`(B($BAPJ}8~$H%b%G%`!&%j%?!<%s$NN>J}(B)$B$d!"(B DSL,</A>
$B1R@1%j%s%/Ey$r;HMQ$7$F%$%s%?!<%M%C%H$K@\B3$7!"(B IP $B%^%9%+%l!<%I$r;H$&$3$H$,$G$-$^$9$+(B?</H2>
<P>
<P><B>$B$O$$(B</B>$B!"(B Linux $B$,$=$N%M%C%H%o!<%/%$%s%?!<%U%'%$%9$r(B
$B%5%]!<%H$7$F$$$k8B$j!"$=$l$OF0:n$7$^$9!#(B
$BF0E*(B IP $B%"%I%l%9$r;H$C$F$$$k$J$i!"(B FAQ $B9`L\Fb$N>e5-!V(B IP $B%^%9%+%l!<%I$O(B
$BF0E*$K3d$jEv$F$i$l$?(B IP $B%"%I%l%9$GF0:n$7$^$9$+(B?$B!W$r;2>H$7$F$/$@$5$$!#(B
<P>
<H2><A NAME="ss7.10">7.10 Diald $B$^$?$O(B PPPd $B$N%@%$%"%k%*%s%G%^%s%I5!G=$r(B IP $B%^%9%+%l!<%I$H(B</A>
$B0l=o$K;H$($k$G$7$g$&$+(B?</H2>
<P>
<P>$B$b$A$m$s$G$9(B! IP $B%^%9%+%l!<%I$O(B Diald $B$^$?$O(B PPP $B$K$*$$$F40A4$K(B
$BF)2aE*$G$9!#(B
$BM#0l$NLdBjE@$O!"F0E*(B IP $B%"%I%l%9$rHw$($?!V6/$$%U%!%$%"%&%)!<%k!&%k!<%k%;%C%H!W(B
$B$r;HMQ$9$k$+$I$&$+$G$9!#(B
$B>\$7$/$O(B FAQ $B9`L\$N>e5-!V(B IP $B%^%9%+%l!<%I$OF0E*$K3d$jEv$F$i$l$?(B IP
$B%"%I%l%9$GF0:n$7$^$9$+(B?$B!W$r;2>H$7$F$/$@$5$$!#(B
<P>
<P>
<H2><A NAME="ss7.11">7.11 IP $B%^%9%+%l!<%I$G$O!"$I$s$J%"%W%j%1!<%7%g%s$,%5%]!<%H$5$l$F$$$^$9$+(B?</A>
</H2>
<P>$BF0:n$9$k%"%W%j%1!<%7%g%s$N%j%9%H$r99?7$7B3$1$k$3$H$OHs>o$K:$Fq$G$9!#(B
$B$7$+$7$J$,$i!"(B (Netscape, MSIE, $BEy$N(B) WWW $B%V%i%&%6!"(B (WS_FTP $BEy$N(B) FTP,
TELNET, SSH, RealAudio, POP3 ($B%a!<%k<u?.(B - Pine, Eudora, Outlook),
SMTP ($B%a!<%kAw?.(B) $BEy!"DL>o$N%$%s%?!<%M%C%H%"%W%j%1!<%7%g%s$NKX$I$O(B
$B%5%]!<%H$5$l$F$$$^$9!#(B
$B%^%9%+%l!<%I8_49$N%/%i%$%"%s%H$NB?>/40A4$J%j%9%H$O$3$N(B HOWTO $B$N(B
<A HREF="IP-Masquerade-HOWTO-6.html#Clients">$B%/%i%$%"%s%H(B</A> $B$N>O$K$"$j$^$9!#(B
<P>
<P>$B$h$jJ#;($J%W%m%H%3%k$d!"0?$O%S%G%*2q5D%=%U%H%&%'%"$N$h$&$JFCJL$J(B
$B@\B3J}K!$r;H$C$F$$$k%"%W%j%1!<%7%g%s$O!"@lMQ$NJd=u%D!<%k$r;H$&(B
$BI,MW$,$"$j$^$9!#(B
<P>
<P>
<P>$B$h$j>\:Y$K$O!"(B
<A HREF="http://www.tsmservices.com/masq">Linux IP masquerading Applications</A> $B$r8+$F$/$@$5$$!#(B
<H2><A NAME="ss7.12">7.12 $B$I$&$d$C$?$i(B IP $B%^%9%+%l!<%I$r(B Redhat, Debian, Slackware $BEy$G(B</A>
$B2TF/$5$;$k$3$H$,$G$-$^$9$+(B?</H2>
<P>$B$3$N(B HOWTO $B$NCf$G@bL@$7$F$$$k(B IP $B%^%9%+%l!<%I$N%;%C%H%"%C%W<j=g$O!"(B
$B$*<j;}$A$N(B Linux $B%G%#%9%H%j%S%e!<%7%g%s$N<oN`$rLd$o$:E,MQ$G$-$^$9!#(B
$B%G%#%9%H%j%S%e!<%7%g%s$NCf$K$O!"%;%C%H%"%C%W$r$h$jMF0W$K$9$k(B GUI $B0?$O(B
$BFCJL$N@_Dj%U%!%$%k$r;}$C$F$$$k$b$N$b$"$k$+$bCN$l$^$;$s!#(B
$B;dC#$O$G$-$k$@$10lHLE*$J(B HOWTO $B$r=q$/0Y$K:GA1$r?T$/$7$F$$$^$9!#(B
<P>
<P>
<P>
<H2><A NAME="ss7.13">7.13 $B$7$P$7$P;HMQ$7$F$$$J$$$H(B TELNET $B@\B3$,@Z$l$k$h$&$K8+$($^$9!#(B</A>
$B$J$<$G$7$g$&$+(B? </H2>
<P>IP $B%^%9%+%l!<%I$O(B TCP $B%;%C%7%g%s!"(B TCP FIN $B5Z$S(B UDP $B%H%i%U%#%C%/$N(B
$B%?%$%`%"%&%H!&%?%$%^$r%G%U%)%k%H$G(B15$BJ,$K@_Dj$7$^$9!#(B
$BKX$I$N%f!<%6$K$O<!$N@_Dj(B ($B$3$N(B HOWTO$B$N(B /etc/rc.d/rc.firewall ruleset $B$N(B
$BCf$G4{$K<($7$^$7$?(B) $B$r;H$3$H$r$*>)$a$7$^$9!#(B
<P>
<P>Linux 2.0.x $B$G(B IPFWADM $B$r;H$&>l9g(B -
<P>
<PRE>
# IP $B%^%9%+%l!<%I$N%?%$%`%"%&%H(B
#
# TCP$B%;%C%7%g%s$N%?%$%`%"%&%H$O(B 2 $B;~4V(B
# TCP/IP $B$N(B $B!V(B FIN $B!W%Q%1%C%H$,<u?.$5$l$?8e$N%?%$%`%"%&%H$O(B 10 $BIC(B
# UDP $B%H%i%U%#%C%/$N%?%$%`%"%&%H$O(B 60 $BIC(B ($B%^%9%+%l!<%I!&%/%i%$%"%s%H$N(B
# ICQ $B%f!<%6$O!"(B ICQ $B$N@_Dj$NCf$G%U%!%$%"%&%)!<%k$N%?%$%`%"%&%HCM$r(B
# 30 $BIC$^$G5v$9$h$&$K$9$kI,MW$,$"$j$^$9!#(B)
#
/sbin/ipfwadm -M -s 7200 10 60
</PRE>
<P>
<P>Linux 2.2.x $B$G(B IPCHAINS $B$r;H$&>l9g(B -
<P>
<P>
<PRE>
# IP $B%^%9%+%l!<%I$N%?%$%`%"%&%H(B
#
# TCP$B%;%C%7%g%s$N%?%$%`%"%&%H$O(B 2 $B;~4V(B
# TCP/IP $B$N(B $B!V(B FIN $B!W%Q%1%C%H$,<u?.$5$l$?8e$N%?%$%`%"%&%H$O(B 10 $BIC(B
# UDP $B%H%i%U%#%C%/$N%?%$%`%"%&%H$O(B 60 $BIC(B ($B%^%9%+%l!<%I!&%/%i%$%"%s%H$N(B
# ICQ $B%f!<%6$O!"(B ICQ $B$N@_Dj$NCf$G%U%!%$%"%&%)!<%k$N%?%$%`%"%&%HCM$r(B
# 30 $BIC$^$G5v$9$h$&$K$9$kI,MW$,$"$j$^$9!#(B)
#
/ipchains -M -S 7200 10 60
</PRE>
<P>
<P>
<H2><A NAME="ss7.14">7.14 $B%$%s%?!<%M%C%H@\B3$r$7$h$&$H$7$F$b!":G=i$O@\B3$G$-$^$;$s!#(B</A>
$B$b$&0lEY$d$C$F$_$k$H!"LdBj$J$/F0:n$7$^$9!#$J$<$G$7$g$&$+(B?</H2>
<P>$B$=$NM}M3$O!"$"$J$?$,F0E*(B IP $B%"%I%l%9$r;H$C$F$$$F!":G=i$K%$%s%?!<%M%C%H@\B3$r(B
$B$7$h$&$H$7$?;~$K$O(B IP $B%^%9%+%l!<%I$,$^$@$=$N(B IP $B%"%I%l%9$rCN$i$J$$$+$i$G$9!#(B
$B$3$N2r7h:v$,$"$j$^$9!#(B
/etc/rc.d/rc.firewall $B%k!<%k%;%C%H$K2<5-$r2C$($F$/$@$5$$(B -
<P>
<P>
<PRE>
# $BF0E*(B IP $B%f!<%6(B -
#
# SLIP $B$d(B PPP, DHCP $BEy$+$i(B IP $B%"%I%l%9$rF0E*$K<u$1<h$C$F$$$k$J$i!"(B
# $B0J2<$N%*%W%7%g%s$rM-8z$K$7$F$/$@$5$$!#(B
# $B$3$l$O(B IP $B%^%9%+%l!<%I$,(B Diald $B$d$3$l$HF1MM$J%W%m%0%i%`$H0l=o$K(B
# $B;H$o$l$k;~$K!"F0E*(B IP $B%"%I%l%9$N%O%C%-%s%0$r$d$j0W$/$7$^$9!#(B
#
echo "1" > /proc/sys/net/ipv4/ip_dynaddr
</PRE>
<P>
<A NAME="MTU-issues"></A> <H2><A NAME="ss7.15">7.15 ( MTU ) - IP $B%^%9%+%l!<%I$O$&$^$/F0:n$7$F$$$k$h$&$K8+$($^$9!#(B</A>
$B$7$+$7!"$$$/$D$+$N%5%$%H$G$OF0:n$7$^$;$s!#$3$l$O!"DL>o(B WWW $B$H(B FTP $B$G5/$3$j$^$9!#(B</H2>
<P>$B$3$N860x$O(B 2 $B$D9M$($i$l$^$9!#(B1 $B$DL\$OHs>o$K0lHLE*$G$9$,!"(B2 $B$DL\$OHs>o$K4u$G$9!#(B
<P>
<UL>
<LI> 2.0.38 $B$H(B 2.2.9 $B0J9_$N(B Linux$B%+!<%M%k$G!"%^%9%+%l!<%I!&%3!<%I$NCf$K5DO@$N$"$k%P%0$,$"$j$^$9!#(B
<P>$B%f!<%6$NCf$K$O!"(B IP $B%^%9%+%l!<%I$,(B DF $B$9$J$o$A!VCGJR2=$7$J$$(B
(Don't Fragment)$B!W%S%C%H$,%;%C%H$5$l$F$$$k%Q%1%C%H$K4X$7$FLdBj$r(B
$BJz$($F$$$k$+$bCN$l$J$$!"$H$$$&;v<B$r;XE&$9$k?M$b$$$^$9!#(B
$B4pK\E*$K!"%^%9%+%l!<%I!&%\%C%/%9$,%$%s%?!<%M%C%H$K(B 1500 $BL$K~$N(B MTU $B$G(B
$B@\B3$7$?>l9g$K$O!"4v$D$+$N%Q%1%C%H$K$O(B DF $B%U%#!<%k%I$,%;%C%H$5$l$k$G$7$g$&!#(B
Linux $B%\%C%/%9$N(B MTU $B$r(B 1500 $B$XJQ99$9$k$3$H$G$3$NLdBj$r2r7h$7$?$h$&$K(B
$B8+$($^$9$,!"%P%0$O$^$@>C$($?$o$1$G$O$"$j$^$;$s!#(B
$B5/$3$C$F$$$k$H9M$($i$l$k$3$H$O!"%^%9%+%l!<%I!&%3!<%I$,(B ICMP 3 Sub 4 $B%3!<%I$r(B
$BIU$1$FJV$C$F$-$?(B ICMP $B%Q%1%C%H$rE,@Z$K=q$-D>$7$F!"%H%i%U%#%C%/$rH/9T$7$?(B
$B%^%9%+%l!<%I!&%/%i%$%"%s%H$KJV$7$F$$$J$$$H$$$&$3$H$G$9!#(B
$B$3$N$?$a$K!"%Q%1%C%H$OMn$H$5$l$^$9!#(B
<P>
<P>$B0lJ}!"B>$N%f!<%6$O$=$NLdBj$,5/$-$k1s3V$N%5%$%H(B ($BE57?E*$K$O(B SSL $B@\B3$N%5%$%HEy(B)
$B$N4IM}<T$N$;$$$@$H;XE&$7$^$9!#(B
$BH`$i$,%;%-%e%j%F%#JP<9IB$G!"(B (Type4 - $BI,MW$H$5$l$k%U%i%0%a%s%H(B - $B$r4^$`(B)
$BA4<oN`$N(B ICMP $B%a%C%;!<%8$r=|5n$7$F$$$k$N$G!"$3$l$O(B TCP/IP $B%W%m%H%3%k$N(B
$B4pK\86B'$r2u$7$F$$$k$H8@$&$N$G$9!#(B
<P>
<P>$BAPJ}$N<gD%$b3F!90lM}$"$j$^$9!#(B
$B$=$7$F!"3F!9$N%0%k!<%W$O:#F|$^$GF$5D$7B3$1$F$$$^$9!#(B
$B$b$7!"$"$J$?$,%M%C%H%o!<%/$N%W%m%0%i%^$G!"$3$NLdBj$r2r7h0?$O?dB,$G$-$k$J$i!"(B
$B$d$C$F$_$F$/$@$5$$!#(B
$B>\$7$/$O(B
<A HREF="http://www.tux.org/hypermail/linux-kernel/1999week10/0124.html">MTU Thread from the Linux-Kernel</A> $B$r%A%'%C%/$7$F$/$@$5$$!#(B
<P>
<P>$B$G$b?4G[$O$"$j$^$;$s!#(B
$B40A4$G$h$$BP=hK!$O!"%$%s%?!<%M%C%H%j%s%/$N(B MTU $B$r(B 1500 $B$KJQ99$9$k$3$H$G$9!#(B
$B:#!"%f!<%6$NCf$K$O(B TELNET $B$d%2!<%`Ey$N1~Ez;~4V$KIR46$J%W%m%0%i%`$K(B
$B0-$$$H8@$C$F$3$l$Km4m0$9$k?M$b$$$^$9$,!"1F6A$O$[$s$N>/$7$G$9!#(B
$B7Z$$%5%$%H$G$OKX$I$N(B HTTP $B$d(B FTP $B%H%i%U%#%C%/$,9bB.$K$J$j$^$9(B!
<P>
<P>[ -- DSL $B$^$?$O%1!<%V%k!&%b%G%`$N$?$a$K(B PPPoE $B@\B3$r9T$C$F$$$k$+!"(BMTU $B$r(B 1500 $B$KJQ99$7$J$$$3$H$K7h$a$?>l9g$O!"0J2<$NJL$N2r7hK!$r8+$F$/$@$5$$!#(B -- ]
<P>$B$3$l$r2r7h$9$k0Y$K!":G=i$K%$%s%?!<%M%C%H%j%s%/MQ(B MTU $B$,:#$I$&$J$C$F$$$k$+$r(B
$B8+$F$/$@$5$$!#(B
$B$3$N0Y$K$O(B "/bin/ifconfig" $B$r<B9T$7$^$9!#(B
$B%$%s%?!<%M%C%H@\B3$KAjEv$9$k%i%$%s$r8+$F!"(B MTU $B$rA\$7$^$9!#(B
$B$3$l$O(B 1500 $B$K%;%C%H$5$l$F$$$kI,MW$,$"$j$^$9!#(B
$BDL>o!"%$!<%5%M%C%H!&%j%s%/$O%G%U%)%k%H$G$3$l$K$J$j$^$9$,!"%7%j%"%k@\B3$N(B
PPP $B%j%s%/$O%G%U%)%k%H$G(B 576 $B$K$J$k$G$7$g$&!#(B
<P>
</LI>
</UL>
<P>
<H3>PPP $B%j%s%/$N(B MTU $B$NJQ99(B - </H3>
<P>
<UL>
<LI>PPP $B%j%s%/$N(B MTU $B$NLdBj$r2r7h$9$k$K$O!"(B/etc/ppp/options $B%U%!%$%k$r(B
$BJT=8$7!">e$NJ}$KJL!9$J(B 2 $B9T(B "mtu 1500" $B$H(B "mru 1500" $B$r2C$($^$9!#(B
$B?7$7$$JQ99$rJ]B8$7!"(BPPP $B$r:F5/F0$7$F$/$@$5$$!#(B
$B>e$K=q$$$?$d$j$+$?$G(B PPP $B%j%s%/$,@5$7$$(B MTU $B$H(B MRU $B$K$J$C$F$$$k$3$H$r(B
$B3NG'$7$F$/$@$5$$!#(B
<P>
</LI>
<LI>DSL $B$d%1!<%V%k%b%G%`Ey$K%V%j%C%8@\B3$d%k!<%?@\B3$5$l$?I8=`$N(B
$B%$!<%5%M%C%H!&%j%s%/>e$G(B MTU $BLdBj$r2r7h$9$k$?$a$K$O!";H$C$F$$$k(B Linux
$B%G%#%9%H%j%S%e!<%7%g%s$G$N@5$7$$%M%C%H%o!<%/=i4|2=%9%/%j%W%H$r(B
$BJT=8$7$J$1$l$P$J$j$^$;$s!#(B
<A HREF="http://www.ecst.csuchico.edu/~dranch/LINUX/index-linux.html#TrinityOS">TrinityOS - Section 16</A> $B$K$"$k%M%C%H%o!<%/:GE,2=$N0Y$NJ8=q$r(B
$B8+$F$/$@$5$$!#(B
<P>
</LI>
</UL>
<H3>$B8E$$(B UNIX $B$N%7%j%"%k%$%s%?!<%U%'!<%9(B - </H3>
<P>
<UL>
<LI>$B:G8e$K!"$3$l$O6&DL$NLdBj$G$O$"$j$^$;$s$,!"$3$l$+$i5-$92r7hK!$,(B
$BEv$F$O$^$k?M$bCf$K$O$$$^$9!#(B
PPP $B%f!<%6$N>l9g!"$I$N%]!<%H$K(B PPPd $B%3!<%I$,@\B3$5$l$F$$$k$+3NG'$7$^$9!#(B
$B$=$l$O(B /dev/cua* $B%]!<%H$G$9$+(B? $B$=$l$H$b(B /dev/ttyS* $B%]!<%H$G$9$+(B?
$B$3$l$O(B /dev/ttyS* $B%]!<%H$G$J$1$l$P$J$j$^$;$s!#(B
cua $B%9%?%$%k$O2a5n$N$b$N$G!"Hs>o$K4qL/$JJ}K!$G$$$/$D$+$N$b$N$r2u$7$^$9!#(B
</LI>
</UL>
<P>
<H3>PPPoE $B%f!<%6(B - </H3>
<P>PPPoE ($B:GBg(B MTU $B$H$7$F(B 1490 $B$rMW5a$7$^$9(B) $B$r;HMQ$9$k%f!<%6!"0?$O(B MTU $B$r(B
1500 $B$K$7$J$$$3$H$K7h$a$?%f!<%6$N0Y$N2r7hK!$r=q$-$^$9!#(B
$BA4$F$N%^%9%+%l!<%I!&%/%i%$%"%s%H(B PC $B$N(B MTU $B$NCM$r30It%$%s%?!<%M%C%H%j%s%/$N(B
MTU $B$HF1$8CM$K@_Dj$9$l$P!"$&$^$/F0:n$9$k$G$7$g$&!#(B
PPPoE ISP $B$NCf$K$O@5$7$/@\B3$9$k$?$a$K(B 1460 $B$N(B MTU $B$rMW5a$9$k=j$b$"$k$+$b(B
$BCN$l$^$;$s$N$G!"Cm0U$7$F$/$@$5$$!#(B
<P>
<P>$B$I$&$d$C$F$3$l$r$9$k$+$O!"0J2<$N3F%*%Z%l!<%F%#%s%0!&%7%9%F%`MQ$NC1=c$J%9%F%C%W$K=>$C$F$/$@$5$$!#(B
<P>$B<!$NNc$O!"$"$k(B DSL $B5Z$S%1!<%V%k%b%G%`%f!<%6$N0Y$N!"E57?E*$J(B PPPoE
$B@\B3MQ$N(B MTU $B$,(B 1490 $B$NNc$r<($7$^$9!#(B
128Kb/s $B0J>e$N@\B3$N>l9g$OA4$F!"2DG=$J8B$jBg$-$JCM$r;HMQ$9$k$3$H$r?d>)$7$^$9!#(B
<P>
<P>$B$h$j>.$5$J(B MTU $B$r;HMQ$9$kM#0l$N<B:]$NM}M3$O!"=hM}G=NO$r5>@7$K$7$F$G$b(B
$B$h$jAa$$1~Ez;~4V$rF@$?$$$H$-$G$9!#(B
$B$3$N%H%T%C%/$K$D$$$F$N>\:Y$O0J2<$r8+$F$/$@$5$$(B -
<P>
<P>
<A HREF="http://www.ecst.csuchico.edu/~dranch/PPP/ppp-performance.html#mtu">http://www.ecst.csuchico.edu/~dranch/PPP/ppp-performance.html#mtu</A><P>
<P>*** $B$&$^$/$$$C$?$H$+!"$$$+$J$+$C$?$H$+!"0?$OB>$N(B OS $B$G$N$d$jJ}$r(B
*** $BCN$C$F$$$k$J$i!"(B David Ranch $BKx%a!<%k$rAw$C$F$/$@$5$$!#$h$m$7$/(B!
<P>
<H3>Linux:</H3>
<P>
<HR>
<PRE>
1. MTU $B$N@_Dj$O(B Linux $B%G%#%9%H%j%S%e!<%7%g%s$K$h$j0[$J$j$^$9!#(B
Redhat$B$G$O(B - /sbin/ifup $B%9%/%j%W%H$NCf$NMM!9$J(B "ifconfig" $B$N9T$r(B
$BJT=8$9$kI,MW$,$"$j$^$9!#(B
Slackware$B$G$O(B - /etc/rc.d/rc1.inet $B$NCf$NMM!9$J(B "ifconfig" $B$N9T$r(B
$BJT=8$9$kI,MW$,$"$j$^$9!#(B
2. $B$3$3$K!"$I$N%G%#%9%H%j%S%e!<%7%g%s$G$bF/$/NI$$Nc$,$"$j$^$9!#(B
/etc/rc.d/rc.local $B%U%!%$%k$rJT=8$7!"%U%!%$%k$N:G8e$K0J2<$N9T$r(B
$BIU$12C$($^$9(B -
echo "Changing the MTU of ETH0"
/sbin/ifconfig eth0 mtu 1490
"eth0" $B$O%$%s%?!<%M%C%H$K@\B3$5$l$?%^%7%s$N>eN.B&$N%$%s%?!<%U%'!<%9L>$K(B
$BCV$-49$($^$9!#(B
3. "TCP $B<u?.%&%$%s%I%&(B" (TCP Receive Windows) $B$N$h$&$J9bEY$J%*%W%7%g%s$d!"(B
$BFCDj$N(B Linux $B%G%#%9%H%j%S%e!<%7%g%sKh$N%M%C%H%o!<%-%s%0!&%9%/%j%W%H$N(B
$BJT=8J}K!Ey$N>\$7$$Nc$O!"(B
</PRE>
<HR>
<BLOCKQUOTE><CODE>
<A HREF=" http://www.ecst.csuchico.edu/~dranch/LINUX/index-linux.html#trinityos"> http://www.ecst.csuchico.edu/~dranch/LINUX/index-linux.html#trinityos</A></CODE></BLOCKQUOTE>
<HR>
<PRE>
$B$N(B16$B>O$r8+$F$/$@$5$$!#(B
</PRE>
<HR>
<P>
<H3>MS Windows 95 - </H3>
<P>
<HR>
<PRE>
1. $B%l%8%9%H%j$K$I$s$JJQ99$r2C$($k$3$H$bHs>o$K4m81$G$9!#0BA4$N$?$a$KI,$:%P%C%/(B
$B%"%C%W!&%3%T!<$r<h$C$F9T$C$F$/$@$5$$!#(B
$B<+8J@UG$$G9T$C$F$/$@$5$$!#(B
2. [$B%9%?!<%H(B] $B"*(B [$B%U%!%$%kL>$r;XDj$7$F<B9T(B(R)] $B"*(B "RegEdit" $B$HF~NO$7$^$9!#(B
$B!ZLuCm(B: $B$3$3$N9`L\$OF|K\8l(B Windows 95 $B$NI=<(FbMF$r;2>H$7$F$$$^$9!#![(B
3. $B:n6HA0$K$O%l%8%9%H%j$N%P%C%/%"%C%W!&%3%T!<$r<h$C$F$/$@$5$$!#(B
$BJ}K!$O!"%(%/%9%W%m!<%iEy$G(B \WINDOWS $B%G%#%l%/%H%j$K$"$k(B "user.dat" $B$H(B
"system.dat" $B%U%!%$%k$r0BA4$J>l=j$K%3%T!<$7$F$*$-$^$9!#(B
$B0JA0$K=R$Y$?J}K!$G$"$k!"(B
"Regedit $B>e$G(B [$B%l%8%9%H%j(B(R)]$B"*(B[$B%l%8%9%H%j%U%!%$%k$N=q$-=P$7(B(E)]
[$B%l%8%9%H%j$N=q$-=P$7(B]$B%&%#%s%I%&>e$G(B [$B%U%!%$%kL>(B(N)]$B"*(B[$BJ]B8(B(S)]"
$B$O!"%l%8%9%H%j$rC1$K%^!<%8$9$k$@$1$G$"$C$F!"CV49$r$9$kLu$G$O$J$$$H$$$&(B
$B$3$H$KCm0U$7$F$/$@$5$$!#(B
4. "n" $B$G=*N;$9$k%l%8%9%H%j%D%j!<$N3F!9$rC5:w$7$^$9!#(B ($BNc$($P(B0007)$B!!(B
NIC $B$N(B IP $B%"%I%l%9$r;}$C$?(B "IPAddress" $B$H$$$&%l%8%9%H%j%(%s%H%j$,(B
$B$"$j$^$9!#(B
$B$=$N%-!<$N2<$K!"2<5-$r2C$($F$/$@$5$$(B -
</PRE>
<HR>
<BLOCKQUOTE><CODE>
<A HREF="http://support.microsoft.com/support/kb/articles/q158/4/74.asp">http://support.microsoft.com/support/kb/articles/q158/4/74.asp</A> $B$+$i(B
</CODE></BLOCKQUOTE>
<HR>
<PRE>
[Hkey_Local_Machine\System\CurrentControlset\Services\Class\NetTrans\000n]
type=DWORD
name="MaxMTU" ($B%@%V%k%/%)!<%F!<%7%g%s$O=q$+$J$$$G$/$@$5$$(B)
value=1490 (10 $B?J?t(B) ((10 $B?J?t(B)$B$H$$$&J8;z$O=q$+$J$$$G$/$@$5$$(B)
type=DWORD
name="MaxMSS" ($B%@%V%k%/%)!<%F!<%7%g%s$O=q$+$J$$$G$/$@$5$$(B)
value=1450 (10 $B?J?t(B) ((10 $B?J?t(B)$B$H$$$&J8;z$O=q$+$J$$$G$/$@$5$$(B)
5. "TCP Receive Window" (TCP $B<u?.%&%$%s%I%&(B) $B$bJQ99$G$-$^$9!#(B
$B$3$l$O;~$H$7$F%M%C%H%o!<%/$N@-G=$r$+$J$j8~>e$5$;$k$3$H$b$"$j$^$9!#(B
$B$b$7%9%k!<%W%C%H$,0-$/$J$C$?$H$o$+$C$?$i!"$3$l$i$N9`L\$r85$NCM$K(B
$BLa$7$F$+$i%j%V!<%H$7$F$/$@$5$$!#(B
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\MSTCP]
type=DWORD
name="DefaultRcvWindow" ($B%@%V%k%/%)!<%F!<%7%g%s$O=q$+$J$$$G$/$@$5$$(B)
value=32768 (10 $B?J?t(B) ((10 $B?J?t(B)$B$H$$$&J8;z$O=q$+$J$$$G$/$@$5$$(B)
type=DWORD
name="DefaultTTL" ($B%@%V%k%/%)!<%F!<%7%g%s$O=q$+$J$$$G$/$@$5$$(B)
value=128 (10 $B?J?t(B) ((10 $B?J?t(B)$B$H$$$&J8;z$O=q$+$J$$$G$/$@$5$$(B)
6. $B:F5/F0$7$FJQ99$rM-8z$K$7$F$/$@$5$$!#(B
</PRE>
<HR>
<P>
<H3>MS Windows 98 - </H3>
<P>
<HR>
<PRE>
1. $B%l%8%9%H%j$K$I$s$JJQ99$r2C$($k$3$H$bHs>o$K4m81$G$9!#0BA4$N$?$a$KI,$:%P%C%/(B
$B%"%C%W!&%3%T!<$r<h$C$F9T$C$F$/$@$5$$!#(B
$B<+8J@UG$$G9T$C$F$/$@$5$$!#(B
2. [$B%9%?!<%H(B] $B"*(B [$B%U%!%$%kL>$r;XDj$7$F<B9T(B(R)] $B"*(B "RegEdit" $B$HF~NO$7$^$9!#(B
$B!ZLuCm(B: $B$3$3$N9`L\$OF|K\8l(B Windows 98 $B$NI=<(FbMF$r;2>H$7$F$$$^$9!#![(B
3. $B:n6HA0$K$O%l%8%9%H%j$N%P%C%/%"%C%W!&%3%T!<$r<h$C$F$/$@$5$$!#(B
$BJ}K!$O!"%(%/%9%W%m!<%iEy$G(B \WINDOWS $B%G%#%l%/%H%j$K$"$k(B "user.dat" $B$H(B
"system.dat" $B%U%!%$%k$r0BA4$J>l=j$K%3%T!<$7$F$*$-$^$9!#(B
$B0JA0$K=R$Y$?J}K!$G$"$k!"(B
"Regedit $B>e$G(B [$B%l%8%9%H%j(B(R)]$B"*(B[$B%l%8%9%H%j%U%!%$%k$N=q$-=P$7(B(E)]
[$B%l%8%9%H%j$N=q$-=P$7(B]$B%&%#%s%I%&>e$G(B [$B%U%!%$%kL>(B(N)]$B"*(B[$BJ]B8(B(S)]"
$B$O!"%l%8%9%H%j$rC1$K%^!<%8$9$k$@$1$G$"$C$F!"CV49$r$9$kLu$G$O$J$$$H$$$&(B
$B$3$H$KCm0U$7$F$/$@$5$$!#(B
4. "n" $B$G=*N;$9$k%l%8%9%H%j%D%j!<$N3F!9$rC5:w$7$^$9!#(B ($BNc$($P(B0007)$B!!(B
NIC $B$N(B IP $B%"%I%l%9$r;}$C$?(B "IPAddress" $B$H$$$&%l%8%9%H%j%(%s%H%j$,(B
$B$"$j$^$9!#(B
$B$=$N%-!<$N2<$K!"2<5-$r2C$($F$/$@$5$$(B -
</PRE>
<HR>
<BLOCKQUOTE><CODE>
<A HREF="http://support.microsoft.com/support/kb/articles/q158/4/74.asp">http://support.microsoft.com/support/kb/articles/q158/4/74.asp</A> $B$+$i(B
</CODE></BLOCKQUOTE>
<HR>
<PRE>
[Hkey_Local_Machine\System\CurrentControlset\Services\Class\NetTrans\000n]
type=STRING
name="MaxMTU" ($B%@%V%k%/%)!<%F!<%7%g%s$O=q$+$J$$$G$/$@$5$$(B)
value=1490 (10 $B?J?t(B) ((10 $B?J?t(B)$B$H$$$&J8;z$O=q$+$J$$$G$/$@$5$$(B)
5. "TCP Receive Window" (TCP $B<u?.%&%$%s%I%&(B) $B$bJQ99$G$-$^$9!#(B
$B$3$l$O;~$H$7$F%M%C%H%o!<%/$N@-G=$r$+$J$j8~>e$5$;$k$3$H$b$"$j$^$9!#(B
$B$b$7%9%k!<%W%C%H$,0-$/$J$C$?$H$o$+$C$?$i!"$3$l$i$N9`L\$r85$NCM$K(B
$BLa$7$F$+$i%j%V!<%H$7$F$/$@$5$$!#(B
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\MSTCP]
type=STRING
name="DefaultRcvWindow" ($B%@%V%k%/%)!<%F!<%7%g%s$O=q$+$J$$$G$/$@$5$$(B)
value=32768 (10 $B?J?t(B) ((10 $B?J?t(B)$B$H$$$&J8;z$O=q$+$J$$$G$/$@$5$$(B)
type=STRING
name="DefaultTTL" ($B%@%V%k%/%)!<%F!<%7%g%s$O=q$+$J$$$G$/$@$5$$(B)
value=128 (10 $B?J?t(B) ((10 $B?J?t(B)$B$H$$$&J8;z$O=q$+$J$$$G$/$@$5$$(B)
6. $B:F5/F0$7$FJQ99$rM-8z$K$7$F$/$@$5$$!#(B
</PRE>
<HR>
<P>
<H3>MS Windows NT 4.x</H3>
<P>
<HR>
<PRE>
1. $B%l%8%9%H%j$K$I$s$JJQ99$r2C$($k$3$H$bHs>o$K4m81$G$9!#0BA4$N$?$a$KI,$:%P%C%/(B
$B%"%C%W!&%3%T!<$r<h$C$F9T$C$F$/$@$5$$!#(B
$B<+8J@UG$$G9T$C$F$/$@$5$$!#(B
2. [$B%9%?!<%H(B] $B"*(B [$B%U%!%$%kL>$r;XDj$7$F<B9T(B] $B"*(B "RegEdit" $B$HF~NO$7$^$9!#(B
$B!ZLuCm(B: $B$3$3$N9`L\$OF|K\8l(B Windows NT $B$NI=<(FbMF$r;2>H$7$F$$$^$9!#![(B
3$B!%!V%l%8%9%H%j!W(B $B"*(B $B!V(B Export Registry File ($B%l%8%9%H%j%U%!%$%k$N<h$j9~$_(B)$B!W(B $B"*(B
$B!V(B Save a copy ($B%l%8%9%H%j%U%!%$%k$N=q$-=P$7(B)$B!W$G%l%8%9%H%j$N%3%T!<$r(B
$B0BA4$J>l=j$K$7$^$$$^$9!#(B
4$B!%(B 2 $BK\$N2DG=$J%l%8%9%H%j%D%j!<$K<!$N%-!<$r:n@.$7$F$/$@$5$$!#(B
$B!!!!B??t$N%(%s%H%j!<$,!"%@%$%d%k%"%C%W%M%C%H%o!<%/(B (ppp)$B!"%$!<%5%M%C%H(B NIC$B!"(BPPTP
$B!!(B VPN $B$J$I$NMM!9$J%M%C%H%o!<%/AuCVMQ$K$"$j$^$9!#(B
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Parameters\Tcpip]
$B$H(B
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\<Adapter-name>\Parameters
\Tcpip]
"<Adapter-Name>" $B$O<+J,$N%"%C%W%j%s%/(B LAN NIC $B%$%s%?!<%U%'!<%9$N(B
$B!!!!!!$=$l$>$l$NL>A0$KCV49$7$^$9!#(B
type=DWORD
name="MTU" (quotes$B5-9f$O4^$a$J$$(B)
value=1490 (10 $B?J?t(B) ((10 $B?J?t(B)$B$H$$$&J8;z$O4^$a$J$$(B)
*** $B$b$7$5$i$K$"$J$?$,(B NT 4.x$B$G$N(B MSS$B!"(BTCP Window Size $B!"(BTTL $B%Q%i%a!<%?!<$r(B
*** $BJQ99$9$kJ}K!$rCN$C$F$$$?$i(B dranch@trinnet.net $B$K%a!<%k$rAw$C$F$/$@$5$$!#(B
*** HOWTO $B$KDI2C$7$?$$$H;W$$$^$9!#(B
5$B!%%j%V!<%H$7$FJQ99$rM-8z$K$7$F$/$@$5$$!#(B
</PRE>
<HR>
<P>
<H3>MS Windows 2000</H3>
<P>
<HR>
<PRE>
1$B!%%l%8%9%H%j$K$I$s$JJQ99$r2C$($k$3$H$bHs>o$K4m81$G$9!#0BA4$N$?$a$KI,$:%P%C%/(B
$B!!(B $B%"%C%W!&%3%T!<$r<h$C$F9T$C$F$/$@$5$$!%<+J,<+?H$N%j%9%/$G9T$C$F$/$@$5$$!#(B
2. [$B%9%?!<%H(B] $B"*(B [$B%U%!%$%kL>$r;XDj$7$F<B9T(B] $B"*(B "RegEdit" $B$HF~NO$7$^$9!#(B
$B!ZLuCm(B: $B$3$3$N9`L\$OF|K\8l(B Windows 2000 $B$NI=<(FbMF$r;2>H$7$F$$$^$9!#![(B
3$B!%!V%l%8%9%H%j!W(B $B"*(B $B!V(B Export Registry File ($B%l%8%9%H%j%U%!%$%k$N<h$j9~$_(B)$B!W(B $B"*(B
$B!V(B Save a copy ($B%l%8%9%H%j%U%!%$%k$N=q$-=P$7(B)$B!W$G%l%8%9%H%j$N%3%T!<$r(B
$B0BA4$J>l=j$K$7$^$$$^$9!#(B
4$B!%%-!<$^$G%J%S%2!<%H$7$^$9(B -
$B!!!!(B[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Inter
faces\<ID for Adapter>
$B3F(B <ID for Adapter> $B!J%"%@%W%?$N(B ID $B!K$O!"(BDNS$B!"(BTCP/IP $B%"%I%l%9!"(B
$B%G%U%)%k%H!&%2!<%H%&%'%$!"%5%V%M%C%H!&%^%9%/$J$I$N$?$a$N(B
$B%G%U%)%k%H!&%-!<$r;}$C$F$$$^$9!#<+J,$N%M%C%H%o!<%/!&%+!<%IMQ$N$b$N$r8+$D$1$F$/$@$5$$!#(B
5$B!%<!$N%(%s%H%j!<$r:n$j$^$9!#(B
type=DWORD
name="MTU" (quotes$B5-9f$O4^$a$J$$(B)
value=1490 (10 $B?J?t(B) ((10 $B?J?t(B)$B$H$$$&J8;z$O4^$a$J$$(B)
http://support.microsoft.com/support/kb/articles/Q120/6/42.asp?LN=EN-US&SD=gn&FR=0
*** $B$b$7(B NT 2000$B$G$N(B MSS$B!"(BTCP Window Size $B!"(BTTL $B%Q%i%a!<%?!<$rJQ99$9$kJ}K!$r(B
*** $BCN$C$F$$$?$i(B dranch@trinnet.net $B$K%a!<%k$rAw$C$F$/$@$5$$!#(B
*** HOWTO$B$KDI2C$7$?$$$H;W$$$^$9!#(B
6$B!%%j%V!<%H$7$FJQ99$rM-8z$K$7$F$/$@$5$$!#(B
</PRE>
<HR>
<P>$B>e=R$N$h$&$K!"$b$7(B OS/2, MacOS $BEy$NB>$N(B OS $B$KF1MM$JJQ99$r2C$($kJ}K!$r(B
$BCN$C$F$$$kJ}$O!"(B
<A HREF="mailto:dranch@trinnet.net">David Ranch</A>
$B$X%a!<%k$rAw$C$F$/$@$5$$!#(B
HOWTO $B$KF~$l$F$$$-$^$9!#(B
<P>
<P>
<H2><A NAME="ss7.16">7.16 IP $B%^%9%+%l!<%I(B FTP $B%/%i%$%"%s%H$,F0:n$7$^$;$s!#(B</A>
</H2>
<P>"ip_masq_ftp" $B%b%8%e!<%k$,%m!<%I$5$l$F$$$k$+%A%'%C%/$7$F$/$@$5$$!#(B
$B$3$l$r9T$&$K$O!"%^%9%+%l!<%I%5!<%P$K%m%0%$%s$7$F(B "/sbin/lsmod" $B%3%^%s%I$r(B
$B<B9T$7$^$9!#(B
$B$b$7!"%m!<%I$5$l$F$$$kH&$N(B "ip_masq_ftp" $B%b%8%e!<%k$,8+Ev$?$i$J$$$J$i!"(B
<A HREF="IP-Masquerade-HOWTO-3.html#firewall-examples">IP $B%U%)%o!<%G%#%s%0%]%j%7!<$r@_Dj$9$k(B</A>
$B$N>O$G?d>)$5$l$F$$$k4pK\E*$J(B
/etc/rc.d/rc.firewall $B$K=>$C$F$$$k$+3N$+$a$F$/$@$5$$!#(B
$B$b$7!"FH<+$N%k!<%k%;%C%H$r;H$C$F$$$k$J$i!"(B HOWTO $B$NNc$K$"$kKX$I$N%k!<%k$,(B
$B4^$^$l$F$$$k$+$I$&$+$r3NG'$7$F$/$@$5$$!#(B
$B$=$&$7$J$$$H$$$D$^$G$bBt;3$NLdBj$K8+Iq$o$l$k$3$H$K$J$j$^$9!#(B
<P>
<P>
<H2><A NAME="ss7.17">7.17 IP $B%^%9%+%l!<%I$,CY$$$h$&$K8+$($^$9!#(B</A>
</H2>
<P>$B$3$l$K$O4v$D$+$N860x$,9M$($i$l$^$9(B -
<P>
<UL>
<LI>$B$"$J$?$O%b%G%`@-G=$K8=<B0J>e$N$b$N$r4|BT$7$F$$$k$+$b$7$l$^$;$s!#I8=`E*$J(B 56K $B$N%b%G%`@\B3$K$D$$$F7W;;$7$F$_$^$9!#(B
<OL>
<LI>56k $B%b%G%`$G$9$+$i!"KhIC(B 56,000 $B%S%C%H$N%G!<%?B.EY$K$J$j$^$9!#(B
</LI>
<LI>$B<B:]$K$OJF9q(B FCC $B$N@)8B$K$h$C$F(B 56K $B$N%b%G%`$G$O$J$/(B 52k $B$N%b%G%`$r;}$C$F$$$k$3$H$K$J$j$^$9!#(B</LI>
<LI>$B$G$b<B:]$O$[$H$s$I(B 52K $B$G@\B3$G$-$k$3$H$O$"$j$^$;$s!#;d$OIaCJ(B 48K $B0J2<$G$D$J$,$j$^$9!#(B</LI>
<LI>$BKhIC(B 48,000 $B%S%C%H$H$$$&$3$H$OKhIC(B 4,800 $B%P%$%H$G$9!#(B
(8$B%S%C%H$,(B 1 $B%P%$%H$G!"(B RS232 $B%7%j%"%k%S%C%H$O3+;O%S%C%H$H=*N;%S%C%H$K(B
2$B%S%C%H$,I,MW$G$9!#(B)
</LI>
<LI>MTU $B$,(B 1500 $B$N$H$-!"(B 1 $BIC4V$K(B 3.2 $B%Q%1%C%H<u$1<h$l$^$9!#(B
$B$3$l$O%U%i%0%a%s%F!<%7%g%s$r4^$`$N$G!"(B 1 $BIC4V$K(B 3 $B%Q%1%C%H$K@Z$j<N$F(B
$B$i$l$^$9!#(B
</LI>
<LI>$B$^$?(B MTU $B$,(B 1500 $B$@$H!"$3$N>l9g$O(B 3.2 x 40 $B%P%$%H(B (8%) $B$N(B TCP/IP $B$N(B
$B%*!<%P!<%X%C%I$,$"$j$^$9!#(B
</LI>
<LI>$B=>$C$F!"4|BT$G$-$k:G9b%G!<%?E>AwG=NO$O!"05=LL5$7$G(B4.68KB/s $B$G$9!#(B
v.42bis $B%O!<%I%&%(%"05=L!"(B MNP5, $B0?$O(B MS/Stac $B05=LEy$G05=L$7$?>l9g!"(B
$B%F%-%9%H%U%!%$%k$N$h$&$J9b05=L$K8~$$$?%G!<%?$G$O0u>]E*$JCM$r(B
$B=P$7$F$$$^$9$,!"<B:]$O(B ZIP $B$d(B MP3 $B$N$h$&$J!"4{$K05=L$5$l$F$$$k%U%!%$%k$N(B
$BE>Aw$G$OCY$/$J$C$F$7$^$$$^$9!#(B
</LI>
</OL>
<P>
</LI>
<LI>$B%$!<%5%M%C%H$r;H$&$H$-$N@_Dj(B (DSL, $B%1!<%V%k%b%G%`(B, LAN $BEy(B)
<P>
<UL>
<LI>$BFbIt$H30It$N%M%C%H%o!<%/$NN>J}$,(B "IP Alias" $B$N5!G=$G(B 1 $B$D$N(B
$B%M%C%H%o!<%/%+!<%I>e$GF0:n$7$F$$$k$H$$$&$3$H$,$J$$$+$I$&$+3NG'$7$F(B
$B$/$@$5$$!#(B
$B$b$7$=$&$J$C$F$$$k$H!"F0:n$7$F$O$$$k$b$N$N!"9b$$N($N>WFM$d(B IRQ $B$N(B
$B;HMQN(Ey$K$h$C$F$H$F$D$b$J$/CY$/$J$j$^$9!#(B
$BJL$N%M%C%H%o!<%/%+!<%I$rF~<j$7$F!"FbIt%M%C%H%o!<%/$H30It%M%C%H%o!<%/$,(B
$B3F!9<+J,$N%$%s%?!<%U%'!<%9$r;}$D$h$&$K$9$k$3$H$r6/$/$*>)$a$7$^$9!#(B
<P>$B%$!<%5%M%C%H@_Dj$NCf$N(B SPEED $B$H(B DUPLEX $B$NN>J}$,E,@Z$G$"$k$3$H$r3N$+$a$F(B
$B$/$@$5$$!#(B
<P>
<UL>
<LI>10Mb/s $B%$!<%5%M%C%H%+!<%I$d!"KX$I$N(B 100Mb/s $B%+!<%I$NCf$K$O!"(B
$BA4Fs=E@\B3!ZLuCm(B: Full Duplex$B![$r%5%]!<%H$7$^$9!#(B
$B%$!<%5%M%C%H!&%+!<%I$+$i(B DSL $B%b%G%`$X$N@\B3(B ($BCf4V$N%O%V$N$J$$>l9g(B)
$B$O!"(B DSL $B%b%G%`$,A4Fs=E$r%5%]!<%H$7$F$$$k>l9g$N$_!"$3$l$r(B
$B@_Dj$9$k$3$H$,$G$-$^$9!#(B
$B$^$?;HMQ$5$l$F$$$k(B 8 $BK\$N%o%$%d!<A4$F$,7k@~$5$l$F$$$kNI<A$N(B
$B%$!<%5%M%C%H%1!<%V%k$r;H$&$h$&?43]$1$F$/$@$5$$!#(B
</LI>
<LI>$B%O%V$r;H$C$?FbIt%M%C%H%o!<%/$OA4Fs=E!ZLuCm(B: Full Duplex$B![(B
$B5!G=$r;H$($^$;$s!#(B
$BA4Fs=EDL?.5!G=$r;H$&$K$O(B 10Mb/s $B$^$?$O(B 100Mb/s $B$N%$!<%5%M%C%H%9%$%C%A(B
$B!ZLuCm(B: $B%9%$%C%A%s%0%O%V![$r;H$&I,MW$,$"$j$^$9!#(B
</LI>
<LI>$B%$!<%5%M%C%H%+!<%I>e$N(B 10/100Mb/s SPEED $B<+F0%M%4%7%(!<%7%g%s$H(B
$BA4Fs=E(B/$BH>Fs=E<+F0%M%4%7%(!<%7%g%s$NAPJ}6&!"%M%C%H%o!<%/$NGK2u$r(B
$B5/$3$9$3$H$,$"$j$^$9!#(B
$B$G$-$l$P(B NIC $B$N(B speed $B$H(B duplex $B$NN>J}$H$b%+!<%M%k!&%=!<%9$K@_Dj$r(B
$BD>$K=q$-9~$`(B ($B%O!<%I%3!<%I(B) $B$3$H$r$*>)$a$7$^$9!#(B
$B$3$l$O!"(BLinux NIC $B%+!<%M%k!&%b%8%e!<%k$K$OD>@\@_Dj2DG=$J$N$G$9$,!"(B
$B%+!<%M%k%b%8%e!<%k$r;H$o$:%I%i%$%P$rD>$KAH$_9~$`$h$&@_Dj$7$F(B
$B%3%s%Q%$%k$5$l$?%+!<%M%k(B ($B%b%N%j%7%C%/!&%+!<%M%k(B) $B$K$*$$$F$O(B
$BD>@\@_Dj2DG=$G$O$"$j$^$;$s!#(B
$B$3$N>l9g!"(B
<A HREF="IP-Masquerade-HOWTO-8.html#Donald Becker's NIC drivers and utils FAQ-Hardware">Donald Becker's NIC drivers and utils FAQ-Hardware</A>
$B$+$i$N(B MII utilities $B$r;H$&$+!"$^$?$O%+!<%M%k%=!<%9$K@_Dj$rD>$K(B
$B=q$-9~$`I,MW$,$"$j$^$9!#(B
</LI>
</UL>
</LI>
</UL>
<P>
</LI>
<LI>MTU $B$r:GE,2=$7!">/$J$/$H$b(B 8192 $B$K(B TCP Sliding window $B$r%;%C%H$7$^$9!#(B
<P>
<UL>
<LI>$B40A4$K$3$NJ8=q$NHO0O30$J$N$G$9$,!"$3$l$O(B PPP,
$B%$!<%5%M%C%H(B, TokenRing $BEy!"FbIt$^$?$O30It$K;}$C$F$$$kA4$F$N(B
$B%M%C%H%o!<%/!&%j%s%/$r>/$7$@$1NI$/$7$^$9!#(B
$B$3$N%H%T%C%/$N>\:Y$O!">e5-$N(B
<A HREF="#MTU-issues">MTU $BLdBj(B</A>
$B$N9`L\$NCf$G(B
$B4J7i$K?($l$i$l$F$$$^$9!#(B
$B99$K$b$C$H>\$7$/$O(B
<A HREF="http://www.ecst.csuchico.edu/~dranch/LINUX/index-linux.html#TrinityOS">TrinityOS - Section 16</A> $B$N(B $B%M%C%H%o!<%/$N:GE,2=(B (Network Optimization) $B$N>O$r%A%'%C%/$7$F$/$@$5$$!#(B
</LI>
</UL>
<P>
</LI>
<LI>PPP $B$r;H$C$F$$$k%7%j%"%k%b%G%`$N%f!<%6(B
<P>
<UL>
<LI>$B30It%b%G%`$r;H$C$F$$$k$J$i!"$h$$%7%j%"%k%1!<%V%k$r;H$C$F$$$k$3$H$r3N$+$a$F$/$@$5$$!#$5$i$K!"B?$/$N(B PC $B$O!"%^%6!<%\!<%I$+(B I/O $B%+!<%I$+$i%7%j%"%k%]!<%H%3%M%/%?$^$G$rJ?$Y$C$?$$%j%\%s!&%1!<%V%k$G@\B3$7$F$$$^$9!#$3$l$i$,$"$l$P!"$=$l$,$h$$>uBV$G$"$k$3$H$r3N$+$a$F$/$@$5$$!#8D?ME*$K!";d$OA4$F$N%j%\%s!&%1!<%V%k$N$^$o$j$K%U%'%i%$%H!&%3%"(B($B3%9u?'$N6bB0E*$J%j%s%0(B)$B$rIU$1$F$$$^$9!#(B
<P>
</LI>
<LI>$B$3$N(B HOWTO $B$N(B FAQ $B%;%/%7%g%s$N>e$N$[$&$K5-:\$5$l$?$h$&$K(B MTU $B$,(B 1500 $B$K%;%C%H$5$l$F$$$k$3$H$r3N$+$a$F$/$@$5$$!#(B
<P>
</LI>
<LI>$B%7%j%"%k%]!<%H$,(B 16550A $B$"$k$$$O$=$l$h$jNI$$(B UART $B$G$"$k$3$H$r3N$+$a$F$/$@$5$$!#(B $BD4$Y$k$K$O(B "dmesg | more" $B%3%^%s%I$r<B9T$7$^$9!#(B
<P>
</LI>
<LI>$B%7%j%"%k%]!<%H$N(B IRQ $B$N@_Dj(B
<P>
<P>
<UL>
<LI>$B$[$H$s$I$N(B PC $B%O!<%I%&%(%">e$G(B Craig Estey $B$N(B
<A HREF="http://www.best.com/~cae/irqtune/">IRQTUNE</A> tool $B$r;H$&$H(B SLIP $B$d(B PPP $B@\B3$r4^$`%7%j%"%k%]!<%H$N@-G=$rCx$7$/8~>e$5$;$^$9!#(B</LI>
</UL>
<P>
</LI>
<LI>PPP $B@\B3MQ$N%7%j%"%k%]!<%H$,(B 115,200 bps$B!J0?$O(B ISDN
$B%?!<%_%J%k%"%@%W%?Ey$N$h$&$J!"%b%G%`$H%7%j%"%k%]!<%H$NN>J}$,07$($k(B
$B>l9g$O!"$3$l$h$jAa$$B.EY!K$GF0:n$7$F$$$k$+3NG'$7$F$/$@$5$$!#(B
<P>
<P>
<UL>
<LI>2.0.x $B%+!<%M%k(B - 2.0.x $B%+!<%M%k$G$OD>@\(B 115200 $B$K(B
$B%7%j%"%k%]!<%H$r@_Dj$9$k$3$H$,$G$-$J$$$N$G!"4qL/$J$d$j$+$?$r$7$^$9!#(B
$BNc$($P(B COM2 $B$K@\B3$5$l$?%b%G%`$N>l9g$O(B /etc/rc.d/rc.local $BKt$O(B
/etc/rc.d/rc.serial $B$N$h$&$J5/F0%9%/%j%W%H%U%!%$%k$NCf$G!"<!$N$h$&$J(B
$B%3%^%s%I$r<B9T$7$^$9(B -
<P>
<UL>
<LI> setserial /dev/ttyS1 spd_vhi
<P>
</LI>
<LI>PPPd $B%9%/%j%W%H$NCf$G!"(Bpppd $B$N(B man $B%Z!<%8$K=>$C$F(B speed "38400" $B$r4^$`$h$&$K<B:]$N(B pppd $B<B9T%i%$%s$rJT=8$7$F$/$@$5$$!#(B</LI>
</UL>
<P>
</LI>
<LI>2.2.x $B%+!<%M%k(B - 2.1.x $B$H(B 2.2.x $B$N%+!<%M%k$ON>J}6&(B 2.0.x
$B%+!<%M%k$H0c$$!"$3$N(B "spd_vhi" $BLdBj$O$"$j$^$;$s!#(B
<P>
<UL>
<LI>$B$G$9$N$G!"(B PPPd $B%9%/%j%W%HCf$G(B pppd $B$N(B man $B%Z!<%8$K=>$$!"(B
"115200" $B$N%7%j%"%kE>AwB.EY$r4^$`$h$&$K<B:]$N(B pppd $B%3%^%s%I%i%$%s$r(B
$BJT=8$7$F$/$@$5$$!#(B
</LI>
</UL>
</LI>
</UL>
</LI>
</UL>
<P>
<P>
</LI>
<LI>All interface types:
<P>
</LI>
</UL>
<P>
<H2><A NAME="ss7.18">7.18 PORTFW $B$r(B IP $B%^%9%+%l!<%I$G;H$C$F$$$^$9$,!"%i%$%s$,D9$$4VBT$A>uBV$K(B</A>
$B$J$k$H@Z$l$F$7$^$$$^$9!#(B</H2>
<P>DSL $B$+%1!<%V%k%b%G%`$N%f!<%6$J$i$P!"IT1?$K$b$3$N8=>]$OHs>o$K0lHLE*$G$9!#(B
$B4pK\E*$K5/$3$C$F$$$k$3$H$O!"(B ISP $B$O;HMQCf$NB>$N@\B3$rM%@h$7$F%5!<%S%9(B
$B$9$k$?$a$K!"$"$J$?$N@\B3$rM%@hEY$NHs>o$KDc$$%-%e!<$KDI$$$d$C$F$7$^$&$+$i$G$9!#(B
$BLdBj$O%f!<%6$N(B DSL $B$d%1!<%V%k%b%G%`@\B3$+$i$N%H%i%U%#%C%/$,(B ISP $B$N(B
$B%O!<%I%&%(%"$r5/$3$9$^$G$N4V!"<B:]$K%(%s%I%f!<%6$N@\B3$,;H$($J$/$J$C$F(B
$B$7$^$&$3$H$G$9!#(B
<P>
<UL>
<LI><P>
</LI>
<LI>DSL $B@_Hw$NCf$K$O!";HMQ$5$l$F$$$J$$@\B3$r@ZCG$7$F$7$^$$!"(B
$B%/%i%$%"%s%H$,@\B3$5$l$F$$$k$+H]$+$r(B 30 $BIC$K0lEYDxEY$7$+%A%'%C%/$7$J$$(B
$B$b$N$b$"$j$^$9!#(B
</LI>
<LI>$B%1!<%V%k%b%G%`$N@_Dj$K$h$C$F$O!";HMQ$5$l$F$$$J$$@\B3$rDc$$(B
$BM%@hEY!ZLuCm(B: priority queue$B![$K@_Dj$7!"%/%i%$%"%s%H$,@\B3$5$l$F$$$k$+(B
$BH]$+$r(B 1 $BJ,4V$K(B 1 $B2sDxEY$7$+%A%'%C%/$7$J$$$b$N$bB8:_$7$^$9!#(B
</LI>
</UL>
<P>$B$I$&$7$?$i$$$$$G$7$g$&$+(B?
30 $BIC$K0lEY(B ping $B$r%G%U%)%k%H%2!<%H%&%'%$$KEj$2$^$7$g$&!#(B
$B$3$l$r$d$k$K$O(B /etc/rc.d/rc.local $B%U%!%$%k$rJT=8$7!"%U%!%$%k$N0lHV2<$K(B
$B0J2<$rIU$12C$($F$/$@$5$$!#(B
<P>
<P>
<HR>
<PRE>
ping -i 30 100.200.212.121 > /dev/null &
</PRE>
<HR>
<P>100.200.212.121 $B$r<+J,$N%G%U%)%k%H!&%k!<%?(B ($B>eN.$N%k!<%?(B) $B$KCV$-49$($F(B
$B$/$@$5$$!#(B
<P>$B!ZLuCm(B: ADSL $B0?$O%1!<%V%k%b%G%`Ey$G%$%s%?!<%M%C%H@\B3$9$k:]$K!"%W%m%P%$%@(B
$BB&$+$i<+F0E*$K%G%U%)%k%H%2!<%H%&%'%$$,3d$j?6$i$l$k>l9g$O!"$3$N%"%I%l%9$,(B
$B@\B3$NEYKh$K?o;~JQ99$5$l$k2DG=@-$,$"$k$N$G!"Cm0U$,I,MW$G$9!#(B
$B%W%m%P%$%@$,Ds<($9$k@\B3;qNA$K!"8GDj$N%G%U%)%k%H%2!<%H%&%'%$$,<($5$l$F(B
$B$$$k>l9g$O!">e5-8GDj(B IP $B$NJ}K!$,;H$($^$9$,!"$=$&$G$J$$>l9g$O!"@\B33NN)(B
$B$N:]$K<B9T$5$l$k%7%'%k%9%/%j%W%H$+$i!"%G%U%)%k%H%2!<%H%&%'%$$N(B IP $B%"%I%l%9(B
$B$r=&$$=P$7$F!">e5-%3%^%s%I$r<B9T$7$J$1$l$P$J$j$^$;$s!#![(B
<P>
<P>
<H2><A NAME="ss7.19">7.19 IP $B%^%9%+%l!<%I$rF0$+$9$3$H$,$G$-$^$7$?$,!"(BSYSLOG $B$N%m%0%U%!%$%k$K(B</A>
$B$"$i$f$k<oN`$NL/$JDLCN$d%(%i!<$r<u$1<h$C$F$$$^$9!#(BIPFWADM $B$d(B IPCHAINS $B$N%U%!%$%"%&%)!<%k%(%i!<$r$I$&FI$a$P$h$$$G$7$g$&$+(B?</H2>
<P>$B62$i$/!"3NG'$9$Y$-6&DL;v9`$,Fs$D$"$j$^$9(B -
<P>
<UL>
<LI><B>$B%^%9%+%l!<%I(B - $B<:GT$7$?(B TCP $B$N%A%'%C%/%5%`%(%i!<(B - </B>
$B$3$N%(%i!<$O!"%$%s%?!<%M%C%HB&$+$iMh$k%Q%1%C%H$N%G!<%?ItJ,$K%(%i!<$,(B
$B$"$C$?;~$K8+$k$G$7$g$&$,!"$=$l0J30$N;~$K8+$k$3$H$O$J$$$G$7$g$&!#(B
Linux $B%\%C%/%9$,$3$N%Q%1%C%H$r<u?.$7$?$H$-!"%Q%1%C%H$N(B CRC $B$r7W;;$7$F(B
$B%(%i!<$,$J$$$+3N$+$a$^$9!#(B
$B%^%$%/%m%=%U%H(B Windows $BEy$N(B OS $B$N%^%7%s$G$O!"C1$K%Q%1%C%H$r<N$F$k$@$1(B
$B$G$9$,!"(B Linux IP $B%^%9%+%l!<%I$O$3$l$rJs9p$7$^$9!#(B
$B$b$7!"$"$J$?$,(B PPP $B%j%s%/$GBt;3$NJs9p$r$r<u$1$k$h$&$J$i!"@h$:$3$N(B FAQ $B$N(B
$BA0$NJ}$K$"$k(B "$B%^%9%+%l!<%I$,CY$$(B" $B$N9`$K=>$C$F$/$@$5$$!#(B
<P>
</LI>
<LI>$B$b$7>e5-$NA4$F$r<B9T$7$F$b2r7h$G$-$J$+$C$?>l9g$O!"(B /etc/ppp/options
$B%U%!%$%k$K(B "-vj" $B$r2C$($F$+$i(B PPPd $B$r:F5/F0$7$F$/$@$5$$!#(B
<P>
</LI>
<LI><B>$B%U%!%$%"%&%)!<%k%R%C%H(B</B> - $B%$%s%?!<%M%C%H>e$GE,@5$J(B
$B%U%!%$%"%&%)!<%k$rHw$($k$H!"$J$s$HB?$/$N?M!9$,$"$J$?$N(B Linux $B%\%C%/%9$K(B
$B?/F~$7$h$&$H$7$?$+$K6C$/$G$7$g$&!#(B
$B$=$7$F!"$3$l$i$N%U%!%$%"%&%)!<%k!&%m%0$NA4$F$O2?$r0UL#$9$k$N$G$7$g$&$+(B?
<P>
<A HREF="http://www.ecst.csuchico.edu/~dranch/LINUX/index-linux.html#TrinityOS">TrinityOS - Section 10</A>$B$NJ8=q$+$i(B -
<P>
<PRE>
$B0J2<$K5-$9%k!<%k%;%C%HCf!"%U%!%$%"%&%)!<%k!&%R%C%H$N%m%0$r<h$k0Y$K!"(B
DENY $B0?$O(B REJECT $B$N9T$K$O(B "-l" (IPCHAINS$B$r;H$&>l9g!#$3$l$O>.J8;z$N(B
"L") $B$^$?$O(B "-o" (IPFWADM$B$r;H$&>l9g(B) $B$,IU$5$l!"$3$l$K$R$C$+$+$C$?(B
$B%H%i%U%#%C%/$OA4$F0J2<$K<($9(B SYSLOG $B%a%C%;!<%8%U%!%$%k$N$$$:$l$+$K(B
$B=q$-=P$5$l$^$9!#(B
$B!ZLuCm(B: $B!V%U%!%$%"%&%)!<%k!&%R%C%H!W(B(firewall hit) $B$H$O!"(B DENY $B0?$O(B
REJECT $B%k!<%k$KE,9g$7!"%Q%1%C%H$rC!$-Mn$7$?8=>]$r;X$7$F$$$^$9!#(B
$BE,@Z$JF|K\8lLu$,;W$$IU$+$J$+$C$?$3$H$H!"$3$N8e$K2?EY$b=P$FMh$^$9$N$G!"(B
$B4:$($FF|K\8lLu$K$7$^$;$s$G$7$?!#![(B
Redhat: /var/log
Slackware: /var/adm
$B$3$l$i$N%U%!%$%k$N$$$:$l$+$K5-O?$5$l$k%U%!%$%"%&%)!<%k!&%m%0$O!"(B
$B$3$N$h$&$K$J$k$G$7$g$&(B -
---------------------------------------------------------------------
IPFWADM:
Feb 23 07:37:01 Roadrunner kernel: IP fw-in rej eth0 TCP 12.75.147.174:1633
100.200.0.212:23 L=44 S=0x00 I=54054 F=0x0040 T=254
IPCHAINS:
Packet log: input DENY eth0 PROTO=17 12.75.147.174:1633 100.200.0.212:23
L=44 S=0x00 I=54054 F=0x0040 T=254
---------------------------------------------------------------------
$B$3$N$?$C$?(B 1 $B9T$NCf$KBt;3$N>pJs$,$"$j$^$9!#(B
$B$3$NNc$r2r$-$[$0$7$F$$$-$^$7$g$&!#(B
$B$=$N8e!"<+J,$N%m%0%U%!%$%k$K5-O?$5$l$F$$$k%U%!%$%"%&%)!<%k!&%R%C%H(B
$B$KLa$C$F!"$3$l$rFI$s$@$h$&$KFI$_JQ$($F$_$F$/$@$5$$!#(B
IPCHAINS $B%f!<%6$OD>@\FI$`$3$H$,$G$-$k$N$G!"$3$NNc$O(B IPFWADM $B$N0Y$K(B
$B$"$j$^$9!#(B
--------------
- $B$3$N%U%!%$%"%&%)!<%k$N%R%C%H$O(B "Feb 23 07:37:01" $B$K@8$8$^$7$?!#(B
- $B$3$N%R%C%H$O(B "RoadRunner" $B%3%s%T%e!<%?$X$N%R%C%H$G$9!#(B
- $B$3$N%R%C%H$O(B "IP" $B$^$?$O(B TCP/IP $B%W%m%H%3%k$G$9!#(B
- $B$3$N%R%C%H$O(B $B%U%!%$%"%&%)!<%k$N(B IN $B$X$N%R%C%H$G$9!#(B ("fw-in")
* $BB>$K(B "fw-out"$B$O(B OUT $B!"(B "fw-fwd" $B$O(B FORWARD $B$X$N%R%C%H$G$9!#(B
- $B$3$N%R%C%H$O$3$3$G5q@d!J(B "rejECTED"$B!K$5$l$^$7$?!#(B
* $BB>$N(B LOG $B$O(B "deny" $B$^$?$O(B "accept"$B$HI=<($5$l$^$9!#(B
- $B$3$N%U%!%$%"%&%)!<%k!&%R%C%H$O(B "eth0" $B%$%s%?!<%U%'!<%9>e$N(B
$B$b$N$G$9!#(B (Internet link)
- $B$3$N%R%C%H$O(B "TCP" $B%Q%1%C%H$G$7$?!#(B
- $B$3$N%R%C%H$O(B IP $B%"%I%l%9(B "12.75.147.174" $B$NJV?.%]!<%H(B "1633" $B$+$i(B
$BMh$^$7$?!#(B
- $B$3$N%R%C%H$O%"%I%l%9(B "100.200.0.212" $B$N%]!<%H(B "23" $B$9$J$o$A(B
TELNET $B08$G$9!#(B
* $B$b$7(B 23 $B$,(B TELNET $B%]!<%H$HCN$i$J$$$J$i(B, /etc/services
$B%U%!%$%k$GB>$K$I$s$J%]!<%H$,;H$o$l$F$$$k$+8+$F$/$@$5$$!#(B
- $B$3$N%Q%1%C%H$O(B "44" $B%P%$%H$ND9$5$G$7$?!#(B
- $B$3$N%Q%1%C%H$K$O(B "Type of Service" (TOS) $B$,%;%C%H$5$l$F(B
$B$$$^$;$s$G$7$?!#(B
--$B$3$l$,M}2r$G$-$J$/$F$b?4G[MW$j$^$;$s!#(B.. $BCN$kI,MW$O(B
$B$"$j$^$;$s!#(B
* ipchains $B%f!<%6$,(B TOS $B$rF@$k$K$O!"$3$l$r(B 4 $B$G3d$C$F$/$@$5$$!#(B
- $B$3$N%Q%1%C%H$O(B "IP ID" $BHV9f(B "18" $B$r;}$C$F$$$^$7$?!#(B
--$B$3$l$,M}2r$G$-$J$/$F$b?4G[MW$j$^$;$s!#(B.. $BCN$kI,MW$O(B
$B$"$j$^$;$s!#(B
- $B$3$N%Q%1%C%H$K$O(B "0x0000" $B$N%U%i%0$r;}$D(B TCP/IP $B%Q%1%C%H$r4^$s$@(B
16bit fragment offset $B$,@_Dj$5$l$F$$$^$7$?!#(B
--$B$3$l$,M}2r$G$-$J$/$F$b?4G[MW$j$^$;$s!#(B.. $BCN$kI,MW$O(B
$B$"$j$^$;$s!#(B
* "0x2..." $B$^$?$O(B "0x3..." $B$G;O$^$kCM$O(B "More Fragments" bit
$B$,%;%C%H$5$l$F$$$F!"J,3d$5$l$?%Q%1%C%H$r0l$D$NBg$-$J(B
$B%Q%1%C%H$K40@.$5$;$k0Y$NJL$N%Q%1%C%H$,Mh$k$3$H$r0UL#$7$^$9!#(B
* "0x4..." $B$^$?$O(B "0x5..." $B$G;O$^$kCM$O(B "Don't Fragment" bit
$B$,%;%C%H$5$l$F$$$^$9!#(B
* $B$3$l0J30$NCM$O85$NBg$-$J%Q%1%C%H$r:F8=$9$k$?$a$K8e$G;H$o$l$k(B
$B!!(B(8 $B$G3d$i$l$?(B) $B%U%i%0%a%s%H%*%U%;%C%H$G$9!#(B
- $B$3$N%Q%1%C%H$K$O(B TimeToLive (TTL) $B$H$7$F(B 20 $B$,@_Dj$5$l$F$$$^$7$?!#(B
* $B%Q%1%C%H$,%$%s%?!<%M%C%H$N7PO)>e$K$"$kA4$F$N%k!<%?$rDL2a(B
$B$9$k!ZLuCm(B: hop$B![:]$K!"$3$N?t$+$i(B (1) $B$,0z$+$l$^$9!#(B
$B!!DL>o!"%Q%1%C%H$O(B (255) $B$H$$$&?t$G;O$^$j$^$9!#$=$7$F$3$N?t$,(B
(0) $B$KC#$9$k$H!"<B:]$O%Q%1%C%H$,<:$o$l!":o=|$5$l$k$3$H$r0UL#(B
$B$7$^$9!#(B
</PRE>
<P>
</LI>
</UL>
<P>
<H2><A NAME="ss7.20">7.20 $B%$%s%?!<%M%C%H%f!<%6$,D>@\$KFbIt%^%9%+%l!<%I!&%/%i%$%"%s%H$HO"Mm$r(B</A>
$B<h$k$3$H$,$G$-$k$h$&$K(B IP $B%^%9%+%l!<%I$r@_Dj$G$-$^$9$+(B?</H2>
<P>$B$O$$(B!
IPPORTFW $B$r;H$($P!"A4It$N$b$7$/$O>/?t$N7h$^$C$?%$%s%?!<%M%C%H%[%9%H$,(B
$B%^%9%+%l!<%I@\B3$5$l$?%M%C%H%o!<%/FbIt$NG$0U$N%3%s%T%e!<%?$K(B
$B@\B3$G$-$k$h$&$K@_Dj$9$k$3$H$,$G$-$^$9!#(B
<B>$B$3$N%H%T%C%/$O$3$N(BHOWTO$B$N(B
<A HREF="IP-Masquerade-HOWTO-6.html#Forwarders">$B%U%)%o!<%@(B ($B%]!<%HE>Aw%D!<%k(B)</A>
$B$N>O$G40A4$KLVMe$5$l$F$$$^$9!#(B</B>
<P>
<P>
<A NAME="No-Free-Ports"></A> <H2><A NAME="ss7.21">7.21 SYSLOG $B%U%!%$%k$K(B "kernel: ip_masq_new(proto=UDP): no free ports." $B$N(B</A>
$B%a%C%;!<%8$,$"$j$^$9!#$I$&$7$?$N$G$7$g$&(B?</H2>
<P>$B%M%C%H%o!<%/FbIt$N%^%9%+%l!<%I$5$l$F$$$k%3%s%T%e!<%?$N(B 1 $B$D$,!"(B
$B%$%s%?!<%M%C%H$K8~$1$F0[>o$KBg$-$J?t$N%Q%1%C%H$rH/@8$7$F$$$^$9!#(B
IP $B%^%9%+%l!<%I!&%5!<%P$,%^%9%+%l!<%I!&%F!<%V%k$r:n$C$F!"(B
$B%$%s%?!<%M%C%H>e$K$3$l$i$N%Q%1%C%H$rE>Aw$9$k$H$-$N%F!<%V%k$,5^B.$K(B
$B=q$+$l$F$$$^$9!#(B
$B%F!<%V%k$,K~GU$K$J$k$H$3$N%(%i!<$,@8$8$^$9!#(B
<P>
<P>$B;d$,CN$C$F$$$k(B $B0l;~E*$K$3$N>uBV$r:n$j=P$9$?$@0l$D$N%"%W%j%1!<%7%g%s$O!"(B
$B%2!<%`%W%m%0%i%`$N(B "GameSpy" $B$G$9!#(B
$B$J$<$G$7$g$&$+(B?
Gamespy $B$O%5!<%P%j%9%H$r:n$C$F%j%9%H$K$"$k$9$Y$F$N?t@i$b$N%5!<%P$K(B
ping $B$rBG$A$^$9!#(B
$B$3$N(B ping $B$rBG$D$3$H$K$h$j!"Hs>o$KC;$$;~4VFb$K?tK|$b$N5^B.$J@\B3$r(B
$B:n$j$^$9!#(B
IP $B%^%9%+%l!<%I(B $B$N%?%$%`%"%&%H$K$h$C$F$3$N%;%C%7%g%s$,%?%$%`%"%&%H$9$k$^$G!"(B
$B%^%9%+%l!<%I!&%F!<%V%k$OK~GU$K$J$j$^$9!#(B
<P>
<P>$B$I$&$7$?$i$$$$$G$7$g$&$+(B?
$B8=<BE*$K$O!"$3$N$h$&$J%W%m%0%i%`$r;HMQ$7$J$$$3$H$G$9!#(B
$B$b$7%m%0$+$i$3$N$h$&$J%(%i!<$r8+$D$1$?$i!"$=$N860x$K$J$C$F$$$k%W%m%0%i%`$r(B
$B8+$D$1$F!";H$&$N$r;_$a$F$/$@$5$$!#(B
$B$b$7K\Ev$K(B GameSpy $B$,9%$-$J$i!"%5!<%P!&%j%U%l%C%7%e$@$1$O9T$o$J$$$G$/$@$5$$!#(B
$B$H$K$+$/!"$3$N%^%9%+%l!<%I$5$l$?%W%m%0%i%`$N<B9T$r$d$a$l$P!"$3$N(B
$B%^%9%+%l!<%I!&%(%i!<$O%^%9%+%l!<%I!&%F!<%V%k$N@\B3%?%$%`%"%&%H$K$h$j!"(B
$B<+A3$K2r>C$7$^$9!#(B
<P>
<P>
<P>
<H2><A NAME="ss7.22">7.22 IPPORTFW $B$r;H$*$&$H$9$k$H(B "ipfwadm: setsockopt failed: Protocol not available" $B$H$$$&%(%i!<$,=P$^$9!#(B </A>
</H2>
<P>$B$b$7!"(B "ipfwadm: setsockopt failed: Protocol not available"
$B!ZLuCm(B: "ipfwadm: setsockopt $B$,<:GT(B: $B%W%m%H%3%k$OL58z$G$9(B"$B![(B
$B$H$$$&%(%i!<%a%C%;!<%8$,=P$k$J$i!"?7$7$$%+!<%M%k$,F0:n$7$F$$$^$;$s!#(B
$B?7$7$$%+!<%M%k$K0\9T$7$?;v$r3NG'$7!"(BLILO $B$r:F<B9T$7$F$+$i$b$&0lEY:F5/F0$7$F(B
$B$/$@$5$$!#(B
<P>
<P>$B>\$7$/$O(B
<A HREF="IP-Masquerade-HOWTO-6.html#Forwarders">$B%U%)%o!<%@(B ($B%]!<%HE>Aw%D!<%k(B)</A>
$B$N>O$N:G8e$N$[$&$r8+$F$/$@$5$$!#(B
<P>
<A HREF="http://support.microsoft.com/support/kb/articles/q172/2/27.asp">this Microsoft KnowledgeBase article</A> $B$r8+$F$/$@$5$$!#(B
<H2></H2>
<P>$B:G=i$NJ}K!$O(B
<A HREF="IP-Masquerade-HOWTO-6.html#Forwarders">$B%U%)%o!<%@(B ($B%]!<%HE>Aw%D!<%k(B)</A>
$B$N>O$r;29M$K$7$F(B IPPORTFW $B$r@_Dj$7!"(B
TCP $B%]!<%H$N(B 137, 138, 139 $BHV$rFbIt$N(B Windows $B%^%7%s$N(B IP $B%"%I%l%9$K(B
$B%]!<%H%U%)%o!<%I$7$^$9!#(B
$B$3$l$G$bF0:n$7$^$9$,!"$3$NJ}K!$G$OFbIt%M%C%H%o!<%/$N%^%7%s$N$&$A$N(B 1$BBf(B
$B$G$7$+F0:n$7$^$;$s!#(B
<P>
<P>$BBh(B 2 $B$N2r7hK!$O!"(B Linux $B%^%9%+%l!<%I%5!<%P>e$G(B
<A HREF="http://www.samba.org">Samba</A> $B$r%$%s%9%H!<%k$7!"@_Dj$9$k;v$G$9!#(B
Samba $B$,F0:n$9$k$J$i!"(B Samba $B%5!<%P>e$KFbIt$N(B Windows $B$N%U%!%$%k$H(B
$B%W%j%s%?$N6&M-(B (Windows File and Print shares) $B$r%^%C%T%s%0$G$-$^$9!#(B
$B$=$l$+$i?7$7$/%^%&%s%H$5$l$?(B SMB $B6&M-$r!"A4$F$N30It%/%i%$%"%s%H$K(B
$B%^%&%s%H$G$-$^$9!#(B
Samba $B$N@_DjJ}K!$O(B Linux Documentation Project $B$NCf$K$"$k(B HOWTO $B$K$F(B
$B40A4$KLVMe$5$l$F$*$j!"$^$?$3$l$HF1MM$K(B TrinityOS $B$NJ8=q$K$b$"$j$^$9!#(B
<P>
<P>$BBh(B 3 $B$N2r7hK!$O!"(B2 $BBf$N%&%$%s%I%&%:%^%7%s4V$G!"0?$O(B 2 $B$D$N%M%C%H%o!<%/4V$G(B
VPN ($B2>A[%W%i%$%Y!<%H!&%M%C%H%o!<%/(B) $B$r7A@.$9$k$3$H$G$9!#(B
$B$3$l$O(B PPTP $B7PM3$+(B IPSEC VPN $B$K$h$k2r7hJ}K!$N$I$A$i$G$b9T$&$3$H$,$G$-$^$9!#(B
Linux $BMQ$N(B
<A HREF="#PPTP">PPTP</A>
$B%Q%C%A$,$"$j$^$9$7!"(BIPSEC $B$N<BAu$O(B 2.0.x $B$H(B
2.2.x $B$N$I$A$i$N%+!<%M%k$G$b2DG=$G$9!#(B
$B$3$N2r7hK!$,62$i$/(B 3 $B$D$NA4$F$N2r7hK!$NCf$G:G$b3N<B$G:G$b0BA4$JJ}K!$K(B
$B$J$k$G$7$g$&!#(B
<P>
<P>$B$3$l$i$N2r7hJ}K!$NA4KF$O!"$3$N(B HOWTO $B$G$OLVMe$5$l$F$$$^$;$s!#(B
IPSEC $B$N%X%k%W$O(B TrinityOS $B$NJ8=q$r8+$F$/$@$5$$!#(B
$B99$KB?$/$N>pJs$rF@$?$$$J$i!"(B JJohn Hardin $B$N(B PPTP $B$N%Z!<%8$r8+$F$/$@$5$$!#(B
<P>
<P><EM>$B$^$?!"(B Microsoft $B$N(B SMB $B%W%m%H%3%k$O%;%-%e%j%F%#>eHs>o$KLdBj$,(B
$B$"$k$3$H$rM}2r$7$F$/$@$5$$!#(B
$B$3$N$?$a!"(B Microsoft $B%U%!%$%k$H%W%j%s%?$N6&M-(B (File and Print sharing) $B$d(B
Windows $B%I%a%$%s%m%0%$%s$r!"%$%s%?!<%M%C%H>e$G0E9f2=$5$l$J$$%H%i%U%#%C%/$N(B
$B$^$^;H$&$3$H$OHs>o$K4m81$G$9!#(B</EM>
<P>
<P>
<P>
<H2><A NAME="ss7.24">7.24 ( IDENT ) - IRC $B$,%^%9%+%l!<%I!&%/%i%$%"%s%H$N(B IRC $B%f!<%6$G$&$^$/(B</A>
$BF0:n$7$^$;$s!#$J$<$G$7$g$&$+(B?</H2>
<P>$B:G$b2DG=@-$,9b$$860x$O!"B?$/$N(B Linux $B%G%#%9%H%j%S%e!<%7%g%s$K$*$$$F6&DL$K(B
$BAuHw$5$l$F$$$k(B IDENT, $B$9$J$o$A(B "Identity" $B%5!<%P$O!"(B IP $B%^%9%+%l!<%I!&(B
$B%j%s%/$KBP=h$G$-$J$$$3$H$G$9!#(B
$B$G$b?4G[$OL5MQ$G$9!#(B
Linux $B$GF0:n$9$k!"$3$l$KBP1~$G$-$k(B IDENT $B%W%m%0%i%`$,B>$K$"$j$^$9!#(B
<P>
<P>$B$3$N%=%U%H%&%'%"$N%$%s%9%H!<%k$O$3$N(B HOWTO $B$NHO0O30$G$9!#(B
$B$7$+$7!"3F%D!<%k$K$O$=$N0Y$NJ8=q$,$"$j$^$9!#(B
$B$3$3$K!"$=$N(B URL $B$r4v$D$+>R2p$7$^$9(B -
<P>
<UL>
<LI>
<A HREF="http://freshmeat.net/projects/oidentd/homepage/">Oident</A> $B$O!"%^%9%+%l!<%I!&%f!<%6$*5$$KF~$j$N(B IDENT $B%5!<%P$G$9!#(B
<P>
</LI>
<LI>
<A HREF="ftp://ftp.code.org/pub/linux/midentd/">Mident</A> $B$O(B
$B?M5$$N$"$k$b$&0l$D$N(B IDENT $B%5!<%P$G$9!#(B
<P>
</LI>
<LI>
<A HREF="http://insecurity.net/sidentd.gz">Sident</A>
<P>
</LI>
<LI>
<A HREF="ftp://sunsite.unc.edu/pub/Linux/system/network/daemons/">Other Idents</A></LI>
</UL>
<P>$B%5!<%P$,(B Ident $B>pJs$rF@$F%f!<%6$,0[$J$C$F$$$?$HCN$C$F$b!"F1$8%[%9%H$+$i$N(B
$BB?=E@\B3$r5v$=$&$H$7$J$$$$$/$D$+$N%$%s%?!<%M%C%H(B IRC $B%5!<%P$,$"$k$3$H$K(B
$BCm0U$7$F$/$@$5$$!#(B
$B%5!<%P$N%7%9%F%`4IM}<T$K6l>p$r8@$C$F$/$@$5$$!#(B :)
<P>
<H2><A NAME="ss7.25">7.25 ( DCC ) - mIRC $B$N(B DCC $BAw?.$,F0:n$7$^$;$s!#(B</A>
</H2>
<P>$B$3$l$O(B mIRC $B$N@_Dj$NLdBj$G$9!#(B
$B$3$l$r2r7h$9$k$K$O!":G=i$K(B mIRC $B$r(B IRC $B%5!<%P$+$i@ZCG$7$F$/$@$5$$!#(B
$B$=$l$+$i(B mIRC $B$G!"(B File $B"*(B Setup $B$H?J$_!"(B IRC servers $B%?%V$r%/%j%C%/$7$^$9!#(B
$B%]!<%H(B 6667 $B$,@_Dj$5$l$F$$$k$3$H$r3N$+$a$F$/$@$5$$!#(B
$BB>$N%]!<%H$rMW5a$9$k$J$i8e=R$N5-:\$r;2>H$7$F$/$@$5$$!#(B
$B<!$K!"(B File $B"*(B Setup $B"*(B Local Info $B$r3+$$$F!"(B Local Host $B$H(B IP Address $B$N(B
$B%U%#!<%k%I$r%/%j%"$7$F$/$@$5$$!#(B
$B<!$K(B "LOCAL HOST" $B$H(B "IP address" $B$N%A%'%C%/%\%C%/%9$rA*Br$7$^$9!#(B
( IP address $B$O%A%'%C%/$G$-$k$+$b$7$l$^$;$s$,L58z$K$J$j$^$9!#(B)
$B<!$K(B "Lookup Method" $B$N2<$G(B "normal" $B$K@_Dj$7$^$9!#(B
$B$b$7(B "server" $B$,A*Br$5$l$F$$$k$HF0:n$7$^$;$s!#(B
$B$=$l$@$1$G$9!#(B
IRC $B%5!<%P$K:F$S7R$$$G$_$F$/$@$5$$!#(B
<P>$B!ZLuCm(B: mIRC $B$O(B
<A HREF="http://www.mirc.com/">http://www.mirc.com/</A> $B$K$"$k!"(B Windows $B7O(B
OS $B8~$1$N!"%7%'%"%&%'%"$N(B IRC $B%/%i%$%"%s%H$G$9!#(B
$B$J$*!"Lu<T$,%@%&%s%m!<%I$7$F;nMQ$7$F$_$^$7$?$,!"F|K\8l$NI=<($O$G$-$^$;$s(B
$B$G$7$?!#![(B
<P>
<P>$B$b$7(B 6667 $B0J30(B ($BNc$($P(B6969) $B$N(BIRC $B%5!<%P$N%]!<%H$rMW5a$9$k$J$i!"(BIRC
$B%^%9%+%l!<%I!&%b%8%e!<%k$r%m!<%I$9$k0Y$K!"5/F0%U%!%$%k(B /etc/rc.d/rc.firewall
$B$rJT=8$9$kI,MW$,$"$j$^$9!#(B
$B$3$N%U%!%$%k$N(B "modprobe ip_masq_irc" $B$N9T$K(B "ports=6667,6969" $B$rDI2C$7$^$9!#(B
$B99$K!"%+%s%^$G6h@Z$C$F%]!<%H$N;XDj$rDI2C$G$-$^$9!#(B
<P>
<P>$B:G8e$K!"A4$F$N%^%9%+%l!<%I%^%7%s>e$NA4$F$N(B IRC $B%/%i%$%"%s%H$r@ZCG$7$F!"(B
IRC $B%^%9%+%l!<%I!&%b%8%e!<%k$r%j%m!<%I$7$F$/$@$5$$(B -
<P>
<P>/sbin/rmmod ip_masq_irc
/etc/rc.d/rc.firewall
<P>
<A NAME="aliasing"></A> <H2><A NAME="ss7.26">7.26 ( IP Aliasing ) - IP $B%^%9%+%l!<%I$O(B1$BKg$@$1$N%$!<%5%M%C%H(B</A>
$B%M%C%H%o!<%/%+!<%I$GF0:n$7$^$9$+(B?</H2>
<P><B>$B!V$O$$!W$H$b!V$$$$$(!W$H$b8@$($^$9(B</B>$B!#(B
$B%f!<%6$O%+!<%M%k$N(B "IP Alias" $B5!G=$r;H$C$F!"(B eth0:1, eth0:2 $B$N$h$&$K(B
$BJLL>$r;H$C$?B?=E$N%$%s%?!<%U%'!<%9$r@_Dj$G$-$^$9!#(B
$B$7$+$7!"(B IP $B%^%9%+%l!<%I$r$3$NJLL>%$%s%?!<%U%'!<%9$K;H$&$3$H$O$*A&$a(B
$B$7$^$;$s!#(B
$B2?8N$J$i!"C10l$N(B NIC $B%+!<%I$G$O0BA4$J%U%!%$%"%&%)!<%k$rDs6!$9$k$3$H$,(B
$BHs>o$K:$Fq$K$J$j$^$9!#(B
$B$3$l$K2C$($F!"F~$C$FMh$?%Q%1%C%H$,$[$H$s$IF1;~$KH/Aw$5$l$k$N$G!"$3$N(B
$B%j%s%/>e$G0[>o$JNL$N%(%i!<$r7P83$9$k$G$7$g$&!#(B
$B$3$NM}M3$H!"8=:_$O(B NIC $B%+!<%I$,(B $10 $BL$K~$N2A3J$G$9$+$i!";d$O$=$l$>$l$N(B
$B%^%9%+%l!<%I@\B3$5$l$?%M%C%H%o!<%/!&%;%0%a%s%HKh$K(B 1 $B$D$:$D$N(B NIC $B$r(B
$B<j$KF~$l$k$3$H$r6/$/$*>)$a$7$^$9!#(B
<P>
<P>$B$^$?(BIP$B%^%9%+%l!<%I$O(B eth0, eth1 $B$N$h$&$JJ*M}E*$J%$%s%?!<%U%'!<%9>e$G$7$+(B
$BF0:n$7$J$$$H;W$C$F$/$@$5$$!#(B
"eth0:1, eth1:1, $B$J$I(B" $B$NJLL>%$%s%?!<%U%'!<%9$r;H$C$F$b%^%9%+%l!<%I$O(B
$BF0:n$7$J$$$G$7$g$&!#(B
$B8@$$BX$($l$P!"0J2<$N$h$&$J$b$N$OF0:n$7$^$;$s(B -
<P>
<P>
<UL>
<LI> /sbin/ipfwadm -F -a m -W eth0:1 -S 192.168.0.0/24 -D 0.0.0.0/0</LI>
<LI> /sbin/ipchains -A forward -i eth0:1 -s 192.168.0.0/24 -j MASQ"</LI>
</UL>
<P>$B$=$l$G$bJLL>%$%s%?!<%U%'!<%9$K$^$@6=L#$r;}$C$F$$$k$N$G$7$?$i!"%+!<%M%k$N(B
"IP Alias" $B5!G=$rM-8z$K$9$kI,MW$,$"$j$^$9!#(B
$B$=$N8e!":F%3%s%Q%$%k$7!"%j%V!<%H$7$^$9!#(B
$B0lEY?7$7$$%+!<%M%k$r<B9T$9$k$H!"?7$7$$%$%s%?!<%U%'!<%9(B ($B$D$^$j(B /dev/eth0:1
$B$J$I(B) $B$r;HMQ$9$k$?$a$K(B Linux $B$N@_Dj$,I,MW$K$J$j$^$9!#(B
$B$=$N8e$O>e5-$N$h$&$J4v$D$+$N@)8B$,$"$j$^$9$,!"DL>o$N%$!<%5%M%C%H!&(B
$B%$%s%?!<%U%'!<%9$N$h$&$K07$&$3$H$,$G$-$^$9!#(B
<P>
<H2><A NAME="ss7.27">7.27 ( MULTI-LAN ) - $B;d$O(B 2 $B$D$N%^%9%+%l!<%I$5$l$?(B LAN$B$r;}$C$F$$$^$9$,!"$=$l$i$O8_$$$KDL?.$G$-$^$;$s!#(B</A>
</H2>
<P>$B>\:Y$O(B
<A HREF="IP-Masquerade-HOWTO-6.html#multiple-masqed-lans">$BJ#?t$NFbIt%M%C%H%o!<%/$X$N(B IP $B%^%9%+%l!<%I(B</A>
$B$r8+$F$/$@$5$$!#(B
<P>
<P>
<A NAME="shaping"></A> <H2><A NAME="ss7.28">7.28 ( SHAPING ) - $B;d$O!"FCDj$N%?%$%W$N%H%i%U%#%C%/$NB.EY$r@)8B$7$?$$$H;W$$$^$9!#(B</A>
</H2>
<P>$B$3$N%H%T%C%/$O<B:]$O(B IP $B%^%9%+%l!<%I$H$O4X78$J$/!"(BLinux $B%+!<%M%k$K(B
$BAH$_9~$^$l$F$$$k%H%i%U%#%C%/%7%'!<%T%s%0$H%l!<%H@)8B5!G=$,A4$F$r9T$$$^$9!#(B
$B>\:Y$O%+!<%M%k%=!<%9%D%j!<$K$"$k(B /usr/src/linux/Documentation/networking/shaper.txt $B$r8+$F$/$@$5$$!#(B
$B!ZLuCm(B: $B!V%H%i%U%#%C%/%7%'!<%T%s%0!W$O!"%+!<%M%k$N(B Traffic Shaper
(CONFIG_SHAPER) $B$H$$$&%9%$%C%A$G;XDj$5$l$k5!G=$G!"0lHL$K%M%C%H%o!<%/5!4o$N(B
$B=PNOB&$G9T$o$l$k5!G=$r;X$7$^$9!#(B
$B!V%l!<%H@)8B!W$H$$$&8@MU$O!"9-$$0UL#$G$N%M%C%H%o!<%/$NBS0h@)8B5;=QA4BN$r(B
$B;X$7!"A0=R$N%H%i%U%#%C%/%7%'!<%T%s%0$@$1$G$J$/!"6qBNE*$K$O%]%j%7%s%0$d%-%e!<$N(B
$B%^%M%8%a%s%H!"%9%1%8%e!<%j%s%0Ey$N5!G=$b4^$^$l$^$9!#![(B
<P>$B$3$l$K4X$7$F!"(BIPROUTE2 $B$N0Y$N(B
<A HREF="IP-Masquerade-HOWTO-2.html#2.2.x-Requirements">2.2.x $B%+!<%M%k$NI,MW>r7o(B</A>
$B$N>O$N2<$K!"$$$/$D$+$N(B URL $B$r4^$`B?$/$N>pJs$,$"$j$^$9!#(B
<P>
<H2><A NAME="ss7.29">7.29 ( ACCOUNTING ) - $B;d$OC/$,%M%C%H%o!<%/$r;HMQ$7$F$$$k$+$K$D$$$F4IM}$9$kI,MW$,$"$j$^$9!#(B</A>
</H2>
<P>IP $B%^%9%+%l!<%I$G$G$-$k$3$H$O$=$&B?$/$O$"$j$^$;$s$,!"$3$3$K4v$D$+$N(B
$B%"%$%G%"$,$"$j$^$9!#(B
$B$b$7!"$b$C$HNI$$2r7hK!$rCN$C$F$$$k$J$i!"$3$N(B HOWTO $B$NCx<T$K%a!<%k$r(B
$BAw$C$F$/$@$5$$!#(B
$B$=$&$9$l$P!"(BHOWTO $B$K:\$;$i$l$^$9!#(B
<P>
<P>
<UL>
<LI>$B%"%$%G%"(B #1 - $B%$%s%?!<%M%C%H$X=P$F$$$/(B www $B%H%i%U%#%C%/$rA4$F5-O?(B
$B$7$?$$$H8@$&$3$H$G$9$M!#(B
$B%U%!%$%"%&%)!<%k!&%k!<%k$K!V%]!<%H(B 80 $BHV$r(B ACCEPT $B!W$H@_Dj$7$F!"(B
SYN $B%S%C%H$,@_Dj$5$l$?%H%i%U%#%C%/$r%m%05-O?$9$k$h$&$K@_Dj$G$-$^$9!#(B
$B$?$@!"$3$l$OHs>o$KBg$-$J%m%0%U%!%$%k$r:n@.$9$k$3$H$KCm0U$7$F$/$@$5$$!#(B
</LI>
<LI>$B%"%$%G%"(B #2 - "ipchains -L -M" $B%3%^%s%I$r(B 1 $BIC4V$K0lEY<B9T$7!"(B
$B$3$l$i$N%(%s%H%j!<$NA4$F$r%m%05-O?$7$^$7$g$&!#(B
$B$=$N8e!"$3$N>pJs$r$R$H$D$NBg$-$J%U%!%$%k$X9gJ;$9$k%W%m%0%i%`$r(B
$B=q$-$^$7$g$&!#(B
</LI>
</UL>
<P>
<H2><A NAME="ss7.30">7.30 ( MULTIPLE IPs ) - $B$$$/$D$+$N30It(B IP $B%"%I%l%9$r;H$C$F!"$$$/$D$+$NFbIt%^%7%s$X(B PORTFW $B$7$?$$$N$G$9$,$I$N$h$&$K$d$k$N$G$7$g$&$+!#(B</A>
</H2>
<P>$B$G$-$^$;$s!#(B
$B%^%9%+%l!<%I$O(B 1$BBPB?$N(B NAT $B%;%C%H%"%C%W$G$9!#(B
$B$"$J$?$,A\$7$F$$$k$h$&$J%D!<%k$G$O$"$j$^$;$s!#(B
$B$"$J$?$,A\$7$F$$$k$N$OB?BPB?$N(B NAT $B$K$h$k2r7hJ}K!$G!"=>Mh$N(B NAT
$B%;%C%H%"%C%W$G$9!#(B
$B$"$J$?$,I,MW$J$N$O(B IPROUTE2 $B%D!<%k$G!">\$7$/$O(B FAQ $B$N>O$N(B
<A HREF="#shaping">$B%H%i%U%#%C%/%7%'!<%T%s%0(B</A>
$B$K$"$k(B IPROUTE2 $B$K4X$9$k2U=j$r8+$F$/$@$5$$!#(B
<P>
<P>1 $B$D$NFbIt(B NIC $B$r(B "IP Alias" $B$r;H$C$FJ#?t(B IP $B%"%I%l%9$K$7!"$=$7$F$3$l$i$9$Y$F$N%]!<%H(B (0-65535) $B$r%]!<%H%U%)%o!<%I$7!"(BIPROUTE2 $B$r;H$C$FE,@Z$J%=!<%9!?%G%#%9%F%#%M!<%7%g%s$N(B IP $B%Z%"$r0];}$9$k$3$H$r9M$($F$$$k?M$X$N2sEz$K$J$j$^$9!#$3$l$O%+!<%M%k(B 2.0.x $B$G$&$^$/$$$-!"%+!<%M%k(B 2.2.x $B$G$b$h$j$&$^$/$$$-$^$7$?!#$3$N@.8y$K$+$+$o$i$:!"$3$N$d$j$+$?$O$=$l$r9T$&E,@Z$JJ}K!$G$J$/!"%5%]!<%H$5$l$?%^%9%+%l!<%I$N;H$$J}$G$O$"$j$^$;$s!#(BIPROUTE2 $B$r8+$F$/$@$5$$(B.. $BK\Ev$N(B NAT $B$r9T$&@5$7$$J}K!$,$"$j$^$9!#(B
<P>
<P>
<P>$B$^$?$b$&0l$D$NCm0U$G$9$,(B -
<P>$B$b$7!"%V%j%C%8$5$l$?(B DSL $B$+%1!<%V%k!&%b%G%`(B (PPPoE$B$G$O$J$$(B)$B$r;H$C$F(B
$B@\B3$7$F$$$l$P!"$"$J$?$N9=@.$G$O7PO)$r7h$a$i$l$J$$$N$G!">/$7Fq$7$/$J$j$^$9!#(B
$B$G$b?4G[$O$$$j$^$;$s!#(B
LDP $B$N(B "Bridge+Firewall, Linux Bridge+Firewall Mini-HOWTO" $B$r%A%'%C%/$7$F(B
$B$/$@$5$$!#(B
Linux $B%\%C%/%9$,0l$D$N%$%s%?!<%U%'!<%9>e$G!"J#?t$N(B IP $B%"%I%l%9$r(B
$B%5%]!<%H$9$kJ}K!$r65$($F$/$l$k$G$7$g$&!#(B
<P>
<P>
<H2><A NAME="ss7.31">7.31 $B;d$O%^%9%+%l!<%I$5$l$?@\B3$r8+$k0Y!"(B NETSTAT $B%3%^%s%I$r(B</A>
$B;H$*$&$H$7$^$7$?$,!"$3$l$,F0:n$7$F$/$l$^$;$s!#(B</H2>
<P>2.0.x $B%Y!<%9$N(B Linux $B%G%#%9%H%j%S%e!<%7%g%s$K4^$^$l$k(B "netstat" $B%W%m%0%i%`$K(B
$BLdBj$,$"$k$+$b$7$l$^$;$s!#(B
Linux $B$r%j%V!<%H$7$?8e!"(B"netstat -M" $B$r5/F0$9$k$H!"$&$^$/F0:n$7$^$9!#(B
$B$7$+$7!"%^%9%+%l!<%I$5$l$?%3%s%T%e!<%?$,(B ping $B$d(B traceroute $B$N$h$&$J!"(B
ICMP $B%H%i%U%#%C%/$rH/@8$7$?8e$K!"0J2<$N$h$&$J%(%i!<$r8+$k$+$b$7$l$^$;$s(B -
<P>
<P>
<PRE>
masq_info.c: Internal Error `ip_masquerade unknown type'.
</PRE>
<P>$B$3$N$?$a$NBeBX<jCJ$O(B "/sbin/ipfwadm -M -l" $B%3%^%s%I$r;HMQ$9$k$3$H$G$9!#(B
$B$^$?0lEY%j%9%H$5$l$?(B ICMP $B%^%9%+%l!<%I!&%(%s%H%j$,%?%$%`%"%&%H$9$k$H!"(B
"netstat" $B$O:F$SF0:n$9$k$3$H$K5$$,IU$/$G$7$g$&!#(B
<P>
<P>
<P>
<A NAME="PPTP"></A> <H2><A NAME="ss7.32">7.32 ( VPNs ) - Microsoft PPTP (GRE tunnels) $B$^$?$O(B IPSEC (Linux SWAN) $B%H%s%M%k$r(B IP $B%^%9%+%l!<%I(B $B$rDL$7$F;H$$$?$$$N$G$9$,!#(B</A>
</H2>
<P>
<P>$B$3$l$O2DG=$G$9!#$=$l$OB?>/$3$NJ8=q$NHO0O30$G$9$,!">\$7$/$O(B John Hardin $B$N(B
<A HREF="ftp://ftp.rubyriver.com/pub/jhardin/masquerade/ip_masq_vpn.html">PPTP Masq</A> $B%Z!<%8$r%A%'%C%/$7$F$/$@$5$$!#(B
<P>
<P>
<H2><A NAME="ss7.33">7.33 XYZ $B%M%C%H%o!<%/!&%2!<%`$r(B IP $B%^%9%+%l!<%I(B $B$rDL$7$F;H$$$?$$$N$G$9$,!"(B</A>
$B$&$^$/$$$-$^$;$s!#=u$1$F(B!</H2>
<P>$B$^$:!"(B
<A HREF="http://www.tsmservices.com/masq">Steve Grevemeyer's MASQ Applications page</A> $B$r%A%'%C%/$7$F$/$@$5$$!#(B
$B$b$72r7hK!$,$=$3$K$J$+$C$?$i!"(BLINUX $B%+!<%M%k$K(B Glenn Lamb $B$N(B
<A HREF="ftp://ftp.netcom.com/pub/mu/mumford/loose-udp-2.0.36.patch.gz">LooseUDP</A> $B%Q%C%A$rEv$F$F$/$@$5$$!#(B
$B$=$l$O$3$NJ8=q$N(B
<A HREF="IP-Masquerade-HOWTO-6.html#LooseUDP">LooseUDP</A>
$B$N>O$NCf$KLVMe$5$l$F$$$^$9!#(B
$B$^$?$b$C$HB?$/$N>pJs$O(B Dan Kegel $B$N(B
<A HREF="http://www.alumni.caltech.edu/~dank/peer-nat.html">NAT Page</A> $B$r%A%'%C%/$7$F$/$@$5$$!#(B
<P>
<P>$B$b$75;=QE*$K6=L#$,$"$k$J$i!"(B"tcpdump" $B%W%m%0%i%`$r;H$C$F!"$"$J$?$N(B
$B%M%C%H%o!<%/$rGA$$$F$_$F$/$@$5$$!#(B
$B$=$7$F(B XYZ $B%2!<%`$,;H$C$F$$$k%W%m%H%3%k$H%]!<%HHV9f$r8+$D$1=P$7$F$/$@$5$$!#(B
$B$3$N>pJs$r%a%b$7$?$i!"(B
<A HREF="mailto://masq-subscribe@tiffany.indyramp.com">IP Masq $B%a!<%j%s%0%j%9%H(B</A> $B$r1\Mw$7$F!"D4$Y$?7k2L$r%a!<%k$7$F(B
$B=u$1$F$b$i$C$F$/$@$5$$!#(B
<P>
<P>
<P>
<H2><A NAME="ss7.34">7.34 IP $B%^%9%+%l!<%I(B $B$O;C$/$N4V$O$&$^$/F0:n$7$^$9!#(B</A>
$B$7$+$7!"$=$N8e!"F0:n$7$J$/$J$j$^$9!#:F5/F0$9$k$H;C$/$N4V$3$l$,2r7h$5$l$?$h$&$K8+$($^$9!#$J$<$G$7$g$&$+(B?</H2>
<P>$B$"$J$?$O(B IPAUTOFW $B$r;H$C$F$$$k$+!"0?$O$=$l$r%+!<%M%k$K%3%s%Q%$%k$7$F$$$k(B
$B$3$H$KER$1$^$7$g$&!#(B
$B$M!"$=$&$8$c$J$$$G$9$+(B?
$B$3$l$O(B IPAUTOFW $B$K4X$9$k4{CN$NLdBj$G$9!#(B
Linux $B%+!<%M%k$K(B IPAUTOFW $B$r;H$o$J$$$G!"Be$o$j$K(BIPPORTFW $B$r;H$C$F$/$@$5$$!#(B
$B>\:Y$O(B
<A HREF="IP-Masquerade-HOWTO-6.html#Forwarders">$B%U%)%o!<%@(B ($B%]!<%HE>Aw%D!<%k(B)</A>
$B$N>O$NCf$GLVMe$5$l$F$$$^$9!#(B
<P>
<P>
<H2><A NAME="ss7.35">7.35 $B%M%C%H%o!<%/FbIt$N%^%9%+%l!<%I$5$l$F$$$k%3%s%T%e!<%?$,(B SMTP $B$d(B POP-3</A>
$B%a!<%k$rAw$C$F$/$l$^$;$s(B!</H2>
<P>
$B$3$l$O%^%9%+%l!<%G%#%s%0$NLdBj$G$O$J$$$N$G$9$,!"B?$/$N?M$,$3$&$J$k$N$G!"8@5Z$7$^$9!#(B
<P>SMTP - $BLdBj$O!"62$i$/(B SMTP $BCf7Q%5!<%P$H$7$F(B Linux $B%\%C%/%9$r;HMQ$7$F$*$j!"(B
$B0J2<$N%(%i!<$,H/@8$7$F$$$k$N$G$O$J$$$G$7$g$&$+(B -
<P>
<P>
<BLOCKQUOTE><CODE>
"error from mail server: we do not relay" ($B%a!<%k%5!<%P$+$i$N%(%i!<(B -
$BE>Aw$G$-$^$;$s!#(B)
</CODE></BLOCKQUOTE>
<P>Sendmail $B$N$h$j?7$7$$%P!<%8%g%s$dB>$N%a!<%kE>Aw%(!<%8%'%s%H(B (MTA) $B%5!<%P$O!"(B
$B%G%U%)%k%H$GCf7Q$r6X;_$7$F$$$^$9!#(B($B$3$l$O$h$$$3$H$G$9(B)
$B=>$C$F!"$3$l$r2r7h$9$k$?$a$K2<5-$r9T$C$F$/$@$5$$(B -
<P>
<UL>
<LI>Sendmail - /etc/sendmail.cw $B%U%!%$%k$rJT=8$7$F!"$=$N%U%!%$%k$K(B
$B%M%C%H%o!<%/FbIt$N%^%9%+%l!<%I$5$l$F$$$k%3%s%T%e!<%?$N%[%9%HL>5Z$S(B
$B%I%a%$%sL>$r2C$($F!"%^%9%+%l!<%I$5$l$F$$$k%^%7%s$+$i$N%a!<%k$N(B
$BCf7Q$r5v2D$7$F$/$@$5$$!#(B
$B99$K(B /etc/hosts $B%U%!%$%k$NCf$G(B IP $B%"%I%l%95Z$S(B FQDN ($B%[%9%HL>$H(B
$B%I%a%$%sL>$,40A4$K5-=R$5$l$?L>A0(B) $B$r@_Dj$7$F$$$k$3$H$r%A%'%C%/$7$F(B
$B$/$@$5$$!#(B
$B=*$o$C$?$i!"$=$N@_Dj%U%!%$%k$rFI$_9~$`0Y$K(B sendmail $B$r:F5/F0$9$k(B
$BI,MW$,$"$j$^$9!#(B
$B$3$l$O(B
<A HREF="http://www.ecst.csuchico.edu/~dranch/LINUX/index-linux.html#TrinityOS">TrinityOS - Section 25</A> $B$NCf$GLVMe$5$l$F$$$^$9!#(B
</LI>
</UL>
POP-3 - $B$"$k%f!<%6$O%M%C%H%o!<%/FbIt$N%^%9%+%l!<%I$5$l$F$$$k%3%s%T%e!<%?$N(B
POP-3 $B%/%i%$%"%s%H$r!"$"$k30It$N(B SMTP $B%5!<%P$X@\B3$9$k$h$&$K@_Dj$7$^$9!#(B
$B@\B3$,$5$l$F$$$k4V!"B?$/$N(B SMTP $B%5!<%P$O%]!<%H(B 113 $B$rDL$8$F$3$N@\B3$K(B
IDENT $B$r;n$_$k$G$7$g$&!#(B
$B$3$3$G:G$b$"$j$,$A$JLdBj$O!"%G%U%)%k%H$N%^%9%+%l!<%I!&%]%j%7!<$,(B DENY $B$K(B
$B@_Dj$5$l$F$$$k$3$H$G$9!#(B
$B$3$l$ONI$/$"$j$^$;$s!#(B
$B$3$l$r(B REJECT $B$K$7$F!"(Brc.firewall $B%k!<%k%;%C%H$r:F<B9T$7$F$/$@$5$$!#(B
<P>
<P>
<A NAME="iproute2"></A> <H2><A NAME="ss7.36">7.36 ( IPROUTE2 ) - $B;d$O!"30$K=P$k$?$a$N0[$J$k30It(B IP $B%"%I%l%9$r!"0[$J$k(B</A>
$BFbIt%^%9%+%l!<%I%M%C%H%o!<%/$N3F!9$K3d$jEv$F$kI,MW$,$"$j$^$9!#(B</H2>
<P>$B$3$NLdBj$r8@$$49$($k$H$3$&$$$&$3$H$G$9(B - $BJ#?t$NFbIt%M%C%H%o!<%/$H99$K(B
$BJ#?t$N30It(B IP $B%"%I%l%9$^$?$O%M%C%H%o!<%/$r;}$C$F$$$^$9!#(B
$B$d$j$?$$$3$H$O(B LAN #1 $B$+$i$O30It(B IP #1 $B$@$1$r;HMQ$7!"(BLAN #2 $B$+$i$O(B
$B30It(B IP #2 $B$r;HMQ$9$k$3$H$G$9!#(B
<P>
<P>$BFbIt(B LAN -%#045;--------> $B8x<0$J(B IP
<P>LAN #1 $B30It(B IP #1
192.168.1.x --> 123.123.123.11
<P>LAN #2 $B30It(B IP #2
192.168.2.x --> 123.123.123.12
<P>$B4pK\E*$K!"$3$3$G5-=R$7$?$b$N$O08@h%"%I%l%9$K$h$k%k!<%F%#%s%0(B ($BE57?E*$J(B IP
$B%k!<%F%#%s%0(B) $B$@$1$G$J$/!"Aw?.85%"%I%l%9$K4p$E$$$F$N%k!<%F%#%s%0$K$D$$$F$G$9!#(B
$B$3$l$O0lHLE*$K(B "policy-based routing" $B!ZLuCm(B: $B%]%j%7!<$K4p$E$$$?(B
$B%k!<%F%#%s%0![(B $B$"$k$$$O(B "source routing" $B!ZLuCm(B: $BAw?.85%k!<%F%#%s%0![$H(B
$B8F$P$l$^$9!#(B
$B$3$N5!G=$O%+!<%M%k(B 2.0.x $B$G$ODs6!$5$l$F$$$^$;$s$,!"%+!<%M%k(B 2.2.x $B$G$O(B
IPROUTE2 $B%Q%C%1!<%8$K$h$C$FDs6!$5$l$F$$$^$9!#(B
$B$=$7$F$3$l$O(B IPTABLES $B$r;H$&?7$7$$%+!<%M%k(B 2.4.x $B$K$OAH$_9~$^$l$F$$$^$;$s!#(B
<P>
<P>
<P>$B@h$:!"(B IPFWADM $B5Z$S(B IPCHAINS $B$ON>J}6&!"%k!<%F%#%s%0%7%9%F%`$,<u$1<h$C$?(B
$B%Q%1%C%H$r$I$3$XAw$k$Y$-$+7hDj$7$?(B *$B8e$K$J$C$F(B* $B=i$a$F4XM?$9$k$b$N$@$H$$$&(B
$B$3$H$rM}2r$7$J$1$l$P$J$j$^$;$s!#(B
$B$3$NF0:n$N;EAH$_$O!"A4$F$N(B IPFWADM/IPCHAINS/IPMASQ $B$NJ8=q$KBg$-$J@V$$(B
$B%9%?%s%W$G2!$5$l$k$[$I!"K\Ev$K=EMW$J$3$H$G$9!#(B
$B$3$NM}M3$O!"%f!<%6$O:G=i$K%k!<%F%#%s%0$r@5$7$/@_Dj$7$J$1$l$P$J$i$:!"(B
$B$=$N8e$K(B IPFWADM/IPCHAINS $B5Z$S(B/$BKt$O%^%9%+%l!<%I5!G=$rDI2C$7;O$a$k$3$H$,(B
$B$G$-$k$+$i$G$9!#(B
<P>
<P>
<P>
<P>$B$H$K$+$/!">e$K<($5$l$?Nc$N%1!<%9$K$D$$$F$O!"%k!<%F%#%s%0%7%9%F%`$,(B
192.168.1.x $B$+$i$N%Q%1%C%H$O(B 123.123.123.11 $B7PM3$K!"(B 192.168.2.x $B$+$i$N(B
$B%Q%1%C%H$O(B 123.123.123.12 $B7PM3$H$J$k$h$&$K$5$;$kI,MW$,$"$j$^$9!#(B
$B$3$3$,Fq$7$$ItJ,$G!"%k!<%F%#%s%0$,@5$7$/$J$l$P$=$N>e$K%^%9%+%l!<%I$r(B
$B2C$($k$N$O4JC1$G$9!#(B
<P>
<P>$B$3$N5$$^$0$l$J%k!<%F%#%s%0$r9T$&$?$a$K!"(BIPROUTE2 $B$r;HMQ$7$^$9!#(B
$B$3$N5!G=$OA4$/(B IP $B%^%9%+%l!<%I$H4X78$,$J$$$N$G!"$3$N(BHOWTO $B$O$3$N%H%T%C%/$r(B
$B$=$l$[$I>\$7$/LVMe$7$^$;$s!#(B
$B$3$N%H%T%C%/$K$D$$$F$O(B
<A HREF="IP-Masquerade-HOWTO-2.html#2.2.x-Requirements">2.2.x $B%+!<%M%k$NI,MW>r7o(B</A>
$B$K$"$k40A4$J(B URL $B$HJ8=q$r8+$F$/$@$5$$!#(B
<P>
<P>"iprule" $B$H(B "iproute" $B%3%^%s%I$O(B "ip rule" $B$H(B "ip route" $B%3%^%s%I$HF1$8$G$9!#(B
($B;d$O8!:w$70W$$$N$GA0<T$N$[$&$,9%$-$G$9!#(B)
$B2<5-$N%3%^%s%I$OA4$F40A4$K$O;n83$5$l$F$$$^$;$s!#(B
$B$3$l$,F0:n$7$J$$>l9g!"(B IPROUTE2 $B$NCx<T$HO"Mm$r$H$C$F$/$@$5$$(B..$B$3$l$OA4$/(B
IP $B%^%9%+%l!<%G%#%s%0$H4X78$,$"$j$^$;$s$N$G!"(BDavid Ranch $B$d(B IP
$B%^%9%+%l!<%I!&%a!<%j%s%0%j%9%H$NC/$H$b4X78$7$^$;$s!#(B
<P>
<P>$B:G=i$N$$$/$D$+$N%3%^%s%I$O5/F0;~$K0lEY$@$1<B9T$9$kI,MW$,$"$k$@$1$G$9$N$G!"(B
/etc/rc.d/rc.local $B%U%!%$%k$NCf$K5-=R$7$^$9!#(B
<P>
<P>
<BLOCKQUOTE><CODE>
<PRE>
# $BFbIt(BLAN$B$,8_$$$N%k!<%F%#%s%0$r2DG=$K$7$^$9!#(B
/sbin/iprule add from 192.168.0.0/16 to 192.168.0.0/16 table main pref 100
# $B$9$Y$F$NB>$N(B 192.168.1.x $B$+$i$N%H%i%U%#%C%/$O30It$G$9!"%F!<%V%k(B 101 $B$K$h$C$F07$&!#(B
/sbin/iprule add from 192.168.1.0/24 to 0/0 table 101 pref 102
# $B$9$Y$F$NB>$N(B 192.168.2.x $B$+$i$N%H%i%U%#%C%/$O30It$G$9!"%F!<%V%k(B 102 $B$K$h$C$F07$&!#(B
/sbin/iprule add from 192.168.2.0/24 to 0/0 table 102 pref 102
eth0 $B$,@_Dj$5$l$F$$$k;~$K!"$3$l$i$N%3%^%s%I$r<B9T$9$kI,MW$,$"$j$^$9!#(B
Redhat $B%7%9%F%`$G$O!"62$i$/(B /etc/sysconfig/network-scripts/ifup-post
$B$NCf$G5-=R$9$k$3$H$H$J$k$G$7$g$&!#(B
$B$3$l$,F0:n$9$k$3$H$r3N$+$a$k$?$a$K:G=i$OI,$:<jF0$G9T$C$F$/$@$5$$!#(B
# $B%F!<%V%k(B 101 $B$O!"3d$jEv$F$i$l$?%Q%1%C%H$r$9$Y$F(B 123.123.123.11 $B7PM3$K;X<($7$^$9!#(B
/sbin/iproute add table 101 via 62123.123.123.11
# $B%F!<%V%k(B 102 $B$O!"3d$jEv$F$i$l$?%Q%1%C%H$r$9$Y$F(B 123.123.123.12 $B7PM3$K;X<($7$^$9!#(B
/sbin/iproute add table 102 via 62123.123.123.12
$B$3$NCJ3,$G$O!"(B192.168.1.x $B$+$i30It$N@$3&$X$N%Q%1%C%H$,(B 123.123.123.11 $B$r7PM3$7$F$*$j!"(B
192.168.2.x $B$+$i$N%Q%1%C%H$O(B 123.123.123.12 $B$r7PM3$7$F$$$k$3$H$rCN$C$F$*$$$F$/$@$5$$!#(B
$B%k!<%F%#%s%0$,@53N$K$J$C$?$i!":#EY$O$I$s$J(B IPFWADM $B$"$k$$$O(B IPCHAINS
$B%k!<%k$r$b2C$($k$3$H$,$G$-$^$9!#(B
$B<!$NNc$O(B IPCHAINS $BMQ$G$9(B -
/sbin/ipchains -A forward -i ppp+ -j MASQ
$B$9$Y$F$N@_Dj$,9g$C$F$$$k>l9g!"%^%9%+%l!<%I!&%3!<%I$O%Q%1%C%H$,(B 123.123.123.11 $B$H(B
123.123.123.12 $B7PM3$K%k!<%F%#%s%0$5$l$F$$$k$3$H$r8+$F!"%^%9%+%l!<%I$N(B
$BAw?.85!&%"%I%l%9$H$7$F$=$l$i$N%"%I%l%9$r;HMQ$7$^$9!#(B
</PRE>
</CODE></BLOCKQUOTE>
<P>
<H2><A NAME="ss7.37">7.37 $B$J$<?7$7$$(B 2.1.x $B5Z$S(B 2.2.x $B%+!<%M%k$O!"(BIPFWADM $B$NBe$o$j$K(B</A>
IPCHAINS $B$r;H$&$N$G$9$+(B?</H2>
<P>IPCHAINS $B$O(B IPFWADM $B$,;}$C$F$$$J$$<!$N5!G=$r%5%]!<%H$7$^$9!#(B -
<P>
<UL>
<LI>"$B%5!<%S%9$N<A(B " (QoS $B%5%]!<%H(B)
<P>
</LI>
<LI>IPFWADM $B$N$h$&$J@~7A%7%9%F%`$KBP$7$F!"%D%j!<7A<0$N(B
$B%A%'%$%s%7%9%F%`$G$9!#(B($BNc$($P!"(B IPCHAINS $B$O!V$b$7$=$l$,(B ppp0 $B$G$"$l$P!"(B
($B0[$J$k%k!<%k72$r4^$s$G$$$k(B)$B$3$N%A%'%$%s$K%8%c%s%W$;$h!#!W$NMM$J$3$H$,(B
$B$G$-$^$9!#(B)
<P>
</LI>
<LI>IPCHAINS $B$O@_Dj$,$h$j=@Fp$G$9!#(B
$BNc$($P!"(B("insert" $B!ZLuCm(B: $BA^F~![$H(B "add" $B!ZLuCm(B: $BDI2C![$K2C$($F(B)
"replace" $B!ZLuCm(B: $BCV49![%3%^%s%I$rAuHw$7$F$$$^$9!#(B
$B$5$i$K%k!<%k$rH]Dj$9$k$3$H$,$G$-$^$9!#(B
($BNc$($P!"!V;d$N%M%C%H%o!<%/>e$GEPO?:Q$_$N(B IP $B%"%I%l%9$+$iH/@8$7$?(B
$B$b$N$G$O$J$$308~$-$N%Q%1%C%H$rA4$FGQ4~$7$^$9!#!W$H@_Dj$9$l$P!"(B
$B$"$J$?$OBeM}967b$N8;$K$O$J$i$:$K:Q$_$^$9!#(B)
<P>
</LI>
<LI>IPCHAINS$B$OC1$J$k(BTCP, UDP, ICMP $B$@$1$G$J$/!"G$0U$N(B IP $B%W%m%H%3%k$r(B
$BL@<(E*$K%U%#%k%?$G$-$^$9!#(B
</LI>
</UL>
<P>
<H2><A NAME="ss7.38">7.38 $B%+!<%M%k$r(B 2.2.x $B$K%"%C%W%0%l!<%I$7$?$i!"(B IP $B%^%9%+%l!<%I$,(B</A>
$BF0$+$J$/$J$j$^$7$?!#$J$<$G$7$g$&(B?</H2>
<P>IP $B%^%9%+%l!<%I$r9T$C$F$$$k(B Linux $B%^%7%s$,!"4{$K%$%s%?!<%M%C%H$H(B LAN $B$K(B
$B@5$7$/@\B3$5$l$F$$$k$N$G$"$l$P!"0J2<$N9`L\$r%A%'%C%/$7$F$_$F$/$@$5$$(B -
<P>
<P>
<UL>
<LI>$BI,MW$J5!G=$H%b%8%e!<%k$,%3%s%Q%$%k$5$l!"%m!<%I$5$l$F$$$k$3$H$r(B
$B3N$+$a$F$/$@$5$$!#(B
$B>\$7$/$O!"A0$NJ}$N>O$r8+$F$/$@$5$$!#(B
<P>
</LI>
<LI><CODE>/usr/src/linux/Documentation/Changes</CODE> $B$r%A%'%C%/$7$F!"(B
$B:GDc8BI,MW$J%M%C%H%o!<%/4X78$N%D!<%k$,%$%s%9%H!<%k$5$l$F$$$k$3$H$r(B
$B3N$+$a$F$/$@$5$$!#(B
<P>
</LI>
<LI>$B$3$N(B HOWTO $B$N(B
<A HREF="IP-Masquerade-HOWTO-5.html#Testing">IP $B%^%9%+%l!<%I$N%F%9%H(B</A>
$B$N>O$NCf$K$"$k$9$Y$F$N%F%9%H$K=>$C$?$+3NG'$7$F$/$@$5$$!#(B
<P>
</LI>
<LI>IP $B%^%9%+%l!<%I$H%U%!%$%"!<%&%)!<%k!&%k!<%k$r@_Dj$9$k$?$a$K(B
<A HREF="http://netfilter.filewatcher.org/ipchains/">ipchains</A> $B$r(B
$B;H$o$J$1$l$P$J$j$^$;$s!#(B
<P>
</LI>
<LI>$BI8=`$N(B IPAUTOFW $B5Z$S(B IPPORTFW $B%]!<%HE>Aw%W%m%0%i%`$O(B
<A HREF="http://juanjox.kernelnotes.org/">IPMASQADM</A> $B$KCV$-49$($i$l$^$7$?!#(B
$B%+!<%M%k$K$3$l$i$N%Q%C%A$rEv$F!"%+!<%M%k$r:F%3%s%Q%$%k$7!"?7$7$$(B
IPMASQADM $B%D!<%k$r%3%s%Q%$%k$7!"$+$D!"<!$K8E$$(B IPAUTOFW/IPPORTFW
$B%U%!%$%"%&%)!<%k!&%k!<%k%;%C%H$r?7$7$$9=J8$KJQ49$9$kI,MW$,$"$j$^$9!#(B
$B$3$l$O!"(B
<A HREF="IP-Masquerade-HOWTO-6.html#Forwarders">$B%U%)%o!<%@(B ($B%]!<%HE>Aw%D!<%k(B)</A>
$B$N>O$G40A4$KLVMe$5$l$F$$$^$9!#(B
<P>
</LI>
<LI>$BA4$F$N@_Dj$r$b$&0lEY$d$jD>$7$F$_$^$7$g$&(B!
$B860x$NKX$I$O%3%^%s%I$NBG$A4V0c$$$dC1=c$J%_%9$N8+F($7$G$9!#(B
</LI>
</UL>
<P>
<H2><A NAME="ss7.39">7.39 $B%+!<%M%k$r(B 2.0.38 ($B$"$k$$$O$=$l0J9_(B) $B$K%"%C%W%0%l!<%I$7$?$i!"(B</A>
IP $B%^%9%+%l!<%I$,F0$+$J$/$J$j$^$7$?!#$J$<$G$7$g$&(B?</H2>
<P>IP $B%^%9%+%l!<%I$r9T$C$F$$$k(B Linux $B%^%7%s$,!"4{$K%$%s%?!<%M%C%H$H(B LAN $B$K(B
$B@5$7$/@\B3$5$l$F$$$k$N$G$"$l$P!"0J2<$N9`L\$r%A%'%C%/$7$F$_$F$/$@$5$$(B -
<P>
<P>
<UL>
<LI>$BI,MW$J5!G=$H%b%8%e!<%k$,%3%s%Q%$%k$5$l!"%m!<%I$5$l$F$$$k$3$H$r3NG'$7$F$/$@$5$$!#>\$7$/$O!"A0$NJ}$N>O$r8+$F$/$@$5$$!#(B
<P>
</LI>
<LI><CODE>/usr/src/linux/Documentation/Changes</CODE> $B$r%A%'%C%/$7$F!":GDc8BI,MW$J%M%C%H%o!<%/4X78$N%D!<%k$,%$%s%9%H!<%k$5$l$F$$$k$3$H$r3N$+$a$F$/$@$5$$!#(B
<P>
</LI>
<LI>$B$3$N(B HOWTO $B$N(B
<A HREF="IP-Masquerade-HOWTO-5.html#Testing">IP $B%^%9%+%l!<%I$N%F%9%H(B</A>
$B$N>O$NCf$K$"$kA4$F$N%F%9%H$K=>$C$?$+3NG'$7$F$/$@$5$$!#(B
<P>
</LI>
<LI>IP $B%^%9%+%l!<%I$H%U%!%$%"%&%)!<%k!&%k!<%k$r@_Dj$9$k$?$a$K$O(B
<A HREF="http://www.xos.nl/">ipfwadm</A> $B$r;H$o$J$1$l$P$J$j$^$;$s!#(B
$B$b$7(B IPCHAINS $B$r;H$$$?$$$N$J$i!"%+!<%M%k(B 2.0.x $B$K%Q%C%A$rEv$F$kI,MW$,$"$j$^$9!#(B
<P>
</LI>
<LI>$BA4$F$N@_Dj$r$b$&0lEY$d$jD>$7$F$_$^$7$g$&(B!
$B860x$NKX$I$O%3%^%s%I$NBG$A4V0c$$$dC1=c$J%_%9$N8+F($7$G$9!#(B
</LI>
</UL>
<P>
<H2><A NAME="ss7.40">7.40 EQL $B@\B3$H(B IP $B%^%9%+%l!<%I$r;H$?$$$N$G$9$,!#(B</A>
</H2>
<P>EQL $B$O(B IP $B%^%9%+%l!<%I$O!"$h$/(B Linux $B%\%C%/%9>e$GAH$_9g$o$;$i$l$^$9$,!"(B
$B$3$l$i$OA4$/4X78$"$j$^$;$s!#(B
EQL $B$,I,MW$J$i!"(B
<A HREF="http://home.indyramp.com/masq/eql/eql.html">Robert Novak's EQL HOWTO</A> $B$N:G?7%P!<%8%g%s$r%A%'%C%/$9$k$3$H$rA&$a$^$9!#(B
<P>
<P>
<H2><A NAME="ss7.41">7.41 IP $B%^%9%+%l!<%I$,F0:n$7$F$/$l$^$;$s(B!</A>
Windows $B%W%i%C%H%U%)!<%`>e$G$NA*Br;h$O$"$j$^$9$+(B?</H2>
<P>$B:GDc8B$N%O!<%I%&%'%"$GF0:n$7!"%U%j!<$G?.Mj@-$,$"$j!"9b@-G=$J2r7hK!$r(B
$BD|$a$F!"=E$$%O!<%I%&%'%"$rI,MW$H$9$k!"@-G=$NDc$$!"$=$N>e?.Mj@-$b$J$$(B
$BJ}K!$N0Y$K6b$rJ'$&$N$G$9$+(B? ($B$3$l$O;d$N8D?ME*$J0U8+$G$9!#L^O@!";d$b<B:]$K(B
$B$3$N$h$&$J7P83$r$7$?$3$H$,$"$j$^$9(B ;-)
<P>
<P>$B$$$$$G$7$g$&!"$"$J$?$,I,MW$@$H8@$&$J$i;EJ}$,$"$j$^$;$s!#(B
Windows NAT $B5Z$S(B/$BKt$O(B $B%W%m%-%7$K$h$k2r7h$rK>$`$N$J$i!"$3$3$KCzEYNI$$0lMw$,(B
$B$"$j$^$9!#(B
$B;d$O$3$l$i$N%D!<%k$K4X$7$F:#$^$G;H$C$?$3$H$,$J$$$N$G!"$3$l$i$N9%$_$O(B
$B$o$+$j$^$;$s!#(B
<P>
<P>
<P>
<UL>
<LI>Firesock (Trumpet Winsock$B$N%a!<%+!<$+$i(B)
<UL>
<LI>Does Proxy</LI>
<LI>
<A HREF="http://www.trumpet.com.au">http://www.trumpet.com.au</A></LI>
</UL>
<P>
</LI>
<LI>Iproute
<UL>
<LI>286+ $B%/%i%9$N%3%s%T%e!<%?$GF/$/$h$&$K@_7W$5$l$?(B DOS $B%W%m%0%i%`!#(B</LI>
<LI>Linux $B%^%9%+%l!<%I$N$h$&$JB>$N%\%C%/%9$rI,MW$H$9$k!#(B</LI>
<LI>
<A HREF="http://www.mischler.com/iproute/">http://www.mischler.com/iproute/</A></LI>
</UL>
<P>
</LI>
<LI>Microsoft Proxy
<UL>
<LI>Windows NT Server $B$,I,MW(B</LI>
<LI>$BHs>o$K9b2A(B</LI>
<LI>
<A HREF="http://www.microsoft.com">http://www.microsoft.com</A></LI>
</UL>
<P>
</LI>
<LI>NAT32
<UL>
<LI>Windows 95/98/NT $B%3%s%Q%A%V%k(B</LI>
<LI>
<A HREF="http://www.nat32.com">http://www.nat32.com</A></LI>
<LI>Win9x $BMQ$OLs(B $25 Win9x $B$H(B WinNT $BMQ$OLs(B $47</LI>
</UL>
<P>
</LI>
<LI>SyGate
<UL>
<LI>
<A HREF="http://www.sygate.com">http://www.sygate.com</A></LI>
</UL>
<P>
</LI>
<LI>Wingate
<UL>
<LI>$B%W%m%-%75!G=(B</LI>
<LI>$B2A3J$O(B 2-3 $B%/%i%$%"%s%HMQ$G(B $30 </LI>
<LI>
<A HREF="http://www.wingate.com">http://www.wingate.com</A></LI>
</UL>
<P>
</LI>
<LI>Winroute
<UL>
<LI>NAT $B5!G=(B</LI>
<LI>
<A HREF="http://www.winroute.cz/en/">http://www.winroute.cz/en/</A></LI>
</UL>
</LI>
</UL>
<P>
<P>
<P>$B:G8e$K(B "MS Proxy Server", "Wingate", "WinProxy" $B$G%&%'%V%5!<%A$r$9$k$+!"(B
<A HREF="http://www.winfiles.com">www.winfiles.com</A> $B$K9T$C$F$_$F$/$@$5$$!#$G$b!"@dBP$KC/$K$b;d$?$A$,65$($?$H8@$o$J$$$G$/$@$5$$!#(B
<P>$B!ZLuCm(B: $BF|K\$G$O(B
<A HREF="http://homepage2.nifty.com/spw/bjd/index.html">BlackJumboDog</A> $B$,M-L>$G$7$g$&!#![(B
<P>
<P>
<H2><A NAME="ss7.42">7.42 IP$B%^%9%+%l!<%I3+H/$K6(NO$7$?$$$N$G$9$,!"2?$,$G$-$^$9$+(B?</A>
</H2>
<P>Linux IP $B%^%9%+%l!<%I3+H/<T%a!<%j%s%0%j%9%H$K;22C$7$F!"$"$J$?$N$G$-$k$3$H$r3+H/<T$K?R$M$F$/$@$5$$!#%j%9%H$X$N;22C$K$D$$$F$N$h$j>\:Y$O!"(BFAQ$B$N>O$N(B
<A HREF="#Masq-List">IP $B%^%9%+%l!<%I!&%a!<%j%s%0%j%9%H(B</A>
$B$r%A%'%C%/$7$F$/$@$5$$!#(B
<P>$B$=$3$G(B IP $B%^%9%+%l!<%I$N3+H/$K4X78$J$$<ALd$O$7$J$$$G$/$@$5$$(B!!!!
<P>
<H2><A NAME="ss7.43">7.43 IP $B%^%9%+%l!<%I$N>pJs$,$b$C$HM_$7$$$N$G$9$,!#(B</A>
</H2>
<P>IP $B%^%9%+%l!<%I$K4X$9$k$h$jB?$/$N>pJs$O(B David Ranch $B$,4IM}$7$F$$$k(B
<A HREF="http://ipmasq.cjb.net/">Linux IP $B%^%9%+%l!<%I$N>pJs8;(B</A>
$B$G8+$D$1$i$l$^$9!#(B
<P>$B$^$?(B TrinityOS $B$HB>$N(B Linux $B$NJ8=q$,4^$^$l$F$$$k(B
<A HREF="http://www.ecst.csuchico.edu/~dranch/LINUX/index-linux.html">Dranch's Linux page</A> $B$K$F!"$h$jB?$/$N>pJs$r8+$D$1$i$l$^$9!#(B
<P>IP $B%^%9%+%l!<%I%a!<%j%s%0%j%9%H$rDs6!$7$F$$$k(B Indyramp Consulting $B$,4IM}$7$F$$$k(B
<A HREF="http://www.indyramp.com/masq/">The Semi-Original Linux IP Masquerading Web Site</A> $B$G$b!"$b$C$HB?$/$N>pJs$r8+$D$1$i$l$k$G$7$g$&!#(B
<P>$B:G8e$K(B IP $B%^%9%+%l!<%I%a!<%j%s%0%j%9%H$N%"!<%+%$%V$d(B IP $B%^%9%+%l!<%I(B
$B3+H/<T%a!<%j%s%0%j%9%H$N%"!<%+%$%V$NCf$+$iFCDj$N<ALd$rA\$9$3$H$,$G$-$^$9$7!"(B
$B$3$l$i$N%a!<%j%s%0%j%9%H$K<ALd$r$9$k$3$H$b$G$-$^$9!#(B
$B>\:Y$O(B FAQ $B$N(B
<A HREF="#Masq-List">IP $B%^%9%+%l!<%I!&%a!<%j%s%0%j%9%H(B</A>
$B$r%A%'%C%/$7$F$/$@$5$$!#(B
<P>
<H2><A NAME="ss7.44">7.44 $B$3$N(B HOWTO $B$rJL$N8@8l$KK]Lu$7$?$$$N$G$9$,!"$I$&$9$l$P$$$$$G$7$g$&(B?</A>
</H2>
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