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References: <3ACCB6655A.29FAMZ-FUG@smtp.pluto.dti.ne.jp>
From: Akio Morita <amorita@meadow.scphys.kyoto-u.ac.jp>
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Date: 06 Apr 2001 12:24:51 +0900
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 (Hiroaki Abe's message of "Fri, 06 Apr 2001 03:16:05 +0900")
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Subject: [FreeBSD-users-jp 60625] Re: port forwarding
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$B?9ED!w5~Bg$G$9(B

Hiroaki Abe(mz-fug@pluto.dti.ne.jp)$B$5$s$O!"(B
Fri, 06 Apr 2001 03:16:05 +0900$B$K(B
$B!V(B[FreeBSD-users-jp 60614] port forwarding$B!W$N(BMessage$B$G=q$-$^$7$?(B

$B!d!!$*@$OC$K$J$C$F$*$j$^$9!#9-Eg$N0BIt$H?=$7$^$9!#(B
$B!d!!(BFreeBSD(98) 3.3-RELEASE$B$N(BIIJ-PPP+NAT patch$B$rMxMQ$7$F!"J#?t$N(BPC$B$+$i(B
$B!d(BISP$B$X%"%/%;%9$7$F$$$^$9!#(B
$B!d(B
$B!d(B         +------------+            +------+
$B!d(B(ISP)----| FreeBSD PC |--------+---| PC 1 |
$B!d(B         +------------+        |   +------+
$B!d(B   IP:a.b.c.d   IP:192.168.1.1 |IP:192.168.1.51
$B!d(B                               |
$B!d(B                               |   +------+
$B!d(B                               +---| PC 2 |
$B!d(B                                   +------+
$B!d(B                                IP:192.168.1.52
$B!d(B
$B!d!!:#!"(BPC 2$B$G(BVNC server$B$rF0$+$7$F$$$^$9!#30It$+$i$3$N(BVNC server$B$K(B
$B!d%"%/%;%9$G$-$k$h$&$K$7$?$$$H9M$(!"(BTCP$B$N%]!<%H(B5800$B$rDL$9$?$a(B
$B!d(B-----
$B!d(Bnatd -dynamic -interface tun0 -redirect_port tcp 192.168.1.52:5800 5800
$B!d(B-----
$B!d$H$7$F$_$^$7$?$,!"<B:]$K30It$+$i(BWeb$B%V%i%&%6$G(Bhttp://a.b.c.d:5800/$B$K(B
$B!d%"%/%;%9$7$F$b!V%5!<%P!<$,8+$D$+$j$^$;$s!W$G$&$^$/$$$-$^$;$s!#(B
$B!dL^O@!"(BPC 1$B$+$i(Bhttp://192.168.1.52:5800/$B$K%"%/%;%9$9$l$PLdBj$J$/(B
$B!d(BVNC$B$,;HMQ$G$-$^$9!#(B
$B!d(B
natd$B$r;H$&$K$O!"(Bipfw$B$K$F(B divert$B$r;XDj$7$F(B natd$B$X=hM}$9$Y$-(B
packet flow$B$rM6F3$9$kI,MW$,$"$j$^$9(B(See man 8 natd)
$B!t(BIIJ-PPP+NAT patch$B$G(B NAT$B$r<B8=$7$F$$$k$J$i(B natd$BMQ$N@_Dj$,$J$5$l$F$$$k(B
$B!t$H$O;W$($^$;$s$N$G$43NG'$r(B

IIJ-PPP+NAT patch$B$G$O$J$/(B FreeBSD$B$N(B ppp$B$,;}$D(B NAT$B5!G=$r(B
$B;HMQ$7$F$$$k$J$i$P!"(Bnatd$B$r5/F0$7$J$/$F$b(B ppp.conf$B$G(B
$BF1$8;XDj$,$G$-$^$9(B(See 8 ppp)
$B!t(Bnatd$B$b(B ppp$B$N(B NAT$B$bF1$8(B libalias$B$r;H$C$F<BAu$5$l$F$$$k$?$a(B

--
#  Akio Morita ( $B?9ED(B $B><IW(B -- $B5~ETBg3XBg3X1!M}3X8&5f2J(B D3)
#   E-mail:  amorita@meadow.scphys.kyoto-u.ac.jp
#  WebPage:  http://misao.kuicr.kyoto-u.ac.jp/amorita/
