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Date: Wed, 25 Mar 1998 18:30:18 +0900 (JST)
From: Kenichi Okuyama <okuyama@trl.ibm.co.jp>
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Subject: [FreeBSD-users-jp 26421] Re: =?iso-2022-jp?B?GyRCJVUlISUkJWQhPCUmJSkhPCVrJEskRCQkJEYbKEI=?=
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$B1|;3!w#I#B#M$G$9!#(B

>>>>> "$B1v8+(B" == Kounosuke Shiomi <yukinopo@tky.3web.ne.jp> writes:
$B1v8+(B>   $B%$%s%?!<%M%C%H(B(OCN)
$B1v8+(B>          |
$B1v8+(B>   +------+------+
$B1v8+(B>   |Dialup router| $B"+(BMN128 SOHO $B$rM=Dj(B
$B1v8+(B>   +------+------+
$B1v8+(B>          |          Global IP address
$B1v8+(B>   +------+--------+
$B1v8+(B>   |DNS+MX+POP+WWW |$B!!"+30(B&$BFb$N%$%s%?!<%M%C%H%5!<%P!<(B
$B1v8+(B>   |+DHCP          |
$B1v8+(B>   +------+--------+
$B1v8+(B>          |          Local IP address (DHCP$B$G3dEv$F$k(B)
$B1v8+(B>   +=====++========+$B!!(B   $B"+(BIP,
$B1v8+(B>   |     |         |       
$B1v8+(B> +-+-+ +-+-+       |$B!!(B
$B1v8+(B> |PC | |PC | ...   |    
$B1v8+(B> $B"+(BTCP/IP$B$G(Bwww(IE,Netscape$BEy(B),$B%a!<%k%/%i%$%"%s%H(B(Outlook$BEy(B)
$B1v8+(B> +---+ +---+       |       NetBEUI$B$G%U%!%$%k6&M-(B
$B1v8+(B>                   |       $B%5!<%P!<$H$N$d$j$H$j(B
$B1v8+(B>                +--+---+
$B1v8+(B>                |Server| $B"+(BIP$B$rC}$i$J$$%5!<%P!<(B
$B1v8+(B>                +------+    IP$B$rDL$9M=Dj$J$7!#(B

>>> 1.IP$B$G!"%V%i%&%6!<(B+$B%a!<%k%/%i%$%"%s%H$,Av$C$F$k(BPC$B$r967b$G$-$k$s$G$7$g$&$+(B
$B1v8+(B> $B!)(B
$B1v8+(B>  Win95$B>e$G(BTCP/IP$B%W%m%H%3%k$rM-8z(B($B$?$@$7!"%U%!%$%k6&M-%5!<%S%9(B
$B1v8+(B>  $B$K$O%P%$%s%I$7$J$$(B)
$B1v8+(B>  $B$K$7$?$H$-$K!"(BIP$B$r;H$C$F30$+$i(BPC$B$N%U%!%$%k$rFI$_=q$-$G$-$k$+!#(B

$B!VD>@\!W$H$$$&0UL#$G$"$l$PL5M}$G$9!#M}M3$O4JC1$G!"(BTCP/IP $B$rM-8z$K$7(B
$B$?$@$1$G$O!"2?$b@8$8$^$;$s$+$i!#(B

$B$G$b!"(BTCP/IP $B$rM-8z$K$9$k>l9g$O!"IaDL2?$+(B TCP/IP $B$r;H$&$b$N!J(BIE $B$H$+!K(B
$B$,F0$$$F$$$k$H8@$&$3$H$G$9$h$M!)$G!"$=$$$D$i$r967b$7$F%"%/%;%9G=NO$r(B
$BF@$k$3$H$,$G$-$^$9!#(B

$B@53N$K$O!"$?$H$($P(B IE $B$N>l9g$@$H!'(B

  $B!V(BIE $B$r;H$C$F$$$k?M$,6=L#$r;}$A$=$&$J(B contents $B$rMQ0U$7$F!"(B
    $B$=$3$N%U%!%$%k$r%@%&%s%m!<%I$9$k$H!"<B$O(B IE $B$N%P%0$r$D$D$$$F(B
    IE $B$r7PM3$7$F$=$N%^%7%s$KBP$9$k%"%/%;%9G=NO$r3MF@$7$F$7$^$&!#(B
    $B$G!"(BIE $B$KFCDj$N%"%I%l%9$rDj4|E*$K;2>H$5$;$F$*$$$F!"(B
    $B$=$3$K!V(BGet c:\*$B!W$N$h$&$K=q$/$H(B IE $B$,$4$j$4$j$H%U%!%$%k$rFI$s$G(B
    $B$OE>Aw$7$F$/$l$k!"$h$&$K(B IE $B$r(B Crack $B$9$k!W(B

$B$H$$$&$h$&$J$3$H$r$7$^$9!#$4Mw$NDL$j!"!XD>@\!Y$G$O$J$$$7!"!X%U%!%$%k(B
$B6&M-%5!<%S%9$O;H$C$F$$$J$$!Y$1$l$I$b!"%U%!%$%k$rFI$a$^$9$h$M!)(B

$B!tOC$O$A$g$C$H$+$o$j$^$9$,!"(Bfj.sci.math $B$K=P$F$$$k!"(B
$B!t!X(BActiveX $B$r;H$o$J$$$H8+$k$3$H$,$G$-$J$$!Y(BO(N logN) $B$h$j$b9bB.$J(B
$B!t%=!<%H%"%k%4%j%:%`$N%Z!<%8!"(BActiveX $B$rM-8z$K$7$m!"$H$$$&$"$?$j(B
$B!t$+$i$7$F$H$C$F$bI]$$$s$G$9$,!D(B
$B!tC/$+!"$3$$$D$NCf?H$r3NG'$7$??M$$$^$;$s$+!)(B


>>> 2.IP$B$G!"(BIP$B$rC}$i$J$$@_Dj$N%5!<%P!<$r967b$G$-$^$9$+!)(B
$B1v8+(B>  IP$B$r;H$C$F!"B>$N%W%m%H%3%k$rC}$k%5!<%P!<$N%G!<%?$rFI$_=q$-$G$-$k$+!#(B

$BD>@\$OL5M}$G$7$g$&!#$G$b!"(BNetBIOS on TCP/IP $B$N$h$&$J$b$N$N>l9g!"(BIP 
$B%Q%1%C%H$rEp$_8+$F!"Cf$rN.$l$F$$$k(B NetBIOS Packet $B$r:F9=C[$9$k$3$H$O(B
$B2DG=$G$7$g$&!#(B

$B$^$?!">e$HF1$8$h$&$J$3$H$O2DG=$G!"(B
$B!X(BIE $B$N@)8f$rF@$?8e!"(BDirectX $B$r7PM3$7$F(B Ethernet Driver $B$r=q$-49$($F!"(B
  Ethernet Packet $BCf$N(B $BHs(B IP $B7?$N$b$N$r0z$CD%$j=P$7$F!"30It$KE>Aw$7(B
  $B$?$j!"5U$K30It$+$iM?$($i$l$?;X<(DL$j$K(B $BHs(B IP $B%Q%1%C%H$r:n$C$FAw$j(B
  $B=P$7$?$j!Y(B
$B$9$k$3$H$O2DG=$G$9!#$G!"$=$l$r7PM3$7$F(B NetBIOS $B%Q%1%C%H$rEp$_8+$?$j!"(B
NetBIOS $B%Q%1%C%H$r@8@.$7$?$j$9$k$3$H$O$G$-$k$G$7$g$&!#(B


$B;d$,(B Cracker $B$@$H$7$?>l9g$K!";d$K$H$C$F=EMW$J$N$O1v8+$5$s$,4IM}$7$F(B
$B$$$k(B Network $B$N!X$I$3$+!Y$K!X;d$,$$$A$$$A%j%"%k%?%$%`$G;X<($r$7$J$/(B
$B$F$bBe$j$K;E;v$r$7$F$/$l$k(B Agent $B%W%m%0%i%`!Y$,B8:_$9$k$3$H$G$9!#(B

$B=>$C$F!"(BCracking $B$N:n6H$O!"!X(BAgent $B:n$j!Y$H$$$&9TDx$H!"!X(BAgent $B$r;H$C(B
$B$F$N>pJs3MF@!Y$"$k$$$O!X(BAgent $B$r;H$C$F$NB>%^%7%s$X$N(B Agent $B:n$j!Y$H(B
$B$$$&9TDx$N$N(B2$B9TDx$+$i$J$j$^$9!J$"$H$O$=$l$r:F5"E*$K7+$jJV$9!K!#(B

$B>e$N(B2$BNc$G8@$($P!"!X(BIE $B$r(B Crack $B$9$k!Y$N$,(B Agent $B:n$j$G$9!#(B
$B$=$l0J9_$O!X(BIE $B$H$$$&(B Agent $B$r;H$C$F$N>pJs3MF@!Y$G$9!#(B
$B$=$7$F!"(BIE $B$N$h$&$K(B HW $B$rD>@\C!$1$k$h$&$J!J68$C$?!K%$%s%?!<%U%'!<%9(B
$B$,8+$($F$7$^$&$b$N$N>l9g!"(Bkernel $B$HF1$88"8B$,$"$j$^$9$+$i!"(B

   $B!X$=$N5$$K$J$C$F!";~4V$r$+$1$?$i!"$G$-$J$$$3$H$J$I2?$b$J$$!Y(B

$B$H;W$&$Y$-$G$7$g$&!#(B
----
$B1|;3(B $B7r0l(B@$BEl5~4pAC8&5f=j(B.$BF|K\#I#B#M(B($B3t(B)[$BFzLn#F#C(B:No.0000000015]
http://karin.ip.titech.ac.jp/~okuyama/index.html
#$B:#F|$N$*8@MU!X(BRobin Williams $B$,%*%9%+!<$r<j$K$$$l$?!Y(B:$B$*$a$G$H$&!*(B
#$BD9G/$NL4$,$+$J$C$?$8$c$J$$$+$C!*(B
