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Message-Id: <20000605161555Z.simokawa@sat.t.u-tokyo.ac.jp>
Date: Mon, 05 Jun 2000 16:15:55 +0900
From: Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp>
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Subject: [FreeBSD-users-jp 52254] Re: [Q] IPSec
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endo> Manabu Watanabe $B$5$s$O=q$-$^$7$?!#(B
endo> >$B!!(BVTun $B$J$i(B FreeBSD 4 $B0\9T$KBP1~$7$F$^$9$7!"%P%$%J%j$bMQ0U$5$l$F$^$9!#(B
endo> >	http://vtun.sourceforge.net/

$B$"(B, $B$9$G$K>R2p$5$l$F$$$^$7$?$M(B.

endo> $B$3$l$C$F!"$I$&$$$&Iw$K$J$C$F$k$s$G$9$+!)(B

$B4pK\E*$K$O(B, tun device $B$rFI$_=q$-$7$F$$$k$@$1$G$9(B.
(connection $BD%$C$?$j(B, $B05=L$7$?$j(B, $B0E9f2=$7$?$j$O$7$^$9$,(B)
$B$=$&$$$&0UL#$G$O(B, ppp $B$HF1$8$G$9$,(B, ppp $B$OIaDL(B tun device
$B$H(B serial $B$r7Q$2$k$o$1$G$9$,(B, vtun $B$G$ODL>o(B IP $B$N(B connection
$B$r;HMQ$7$^$9(B.

endo> $B1Q8l!"<e$$!#!#!#(B^^;
endo> 
endo> $BNc$($P!"(BPPP $B$N%H%s%M%k$rMxMQ$7$F%;%-%e%"$J%M%C%H%o!<%/$r(B
endo> $B:n$k$C$F;v$G$7$g$&$+!)(B
endo> 
endo> $B0J2<$N$h$&$J9=@.$N;~!"(BPPP $B$rF0$+$9$N$O!)(B VTun $B$rF0$+$9$N(B
endo> $B$O$I$3!)(B
endo> 
endo> -----Proxy--- theInternet ---Proxy-----
endo>    LIP    GIP             GIP     LIP
endo> 
endo> Proxy $B$G(B PPP $B$r5/F0$7!"(BProxy $BF1;N$r@\B3$7!"$=$N8e$G(B VTun
endo> $B$r5/F0$7$F%;%-%e%"$J2>A[%M%C%H%o!<%/$r:n$k!)(B
endo> $B$s$8$c!"(BIP $B%Q%1%C%H$O$I$&Ht$V!)(B

/usr/sbin/ppp $B$r;H$&I,MW$O$"$j$^$;$s(B.
vtund $B$G(B, 2$BBf$N(Brouter(FreeBSD machine)$B$N(B tun device $B$r$D$J$2$k$3$H$K$h$C$F(B,
$B$=$3$K2>A[E*$J(B link $B$,<B8=$G$-$^$9(B.

/\ Hidetoshi Shimokawa
\/  simokawa@sat.t.u-tokyo.ac.jp
PGP public key: finger -l simokawa@sat.t.u-tokyo.ac.jp
