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From: "Hiroshi TSUKADA" <hiroshi@kiwi.ne.jp>
To: <FreeBSD-net-jp@jp.freebsd.org>
Date: Tue, 14 Sep 1999 14:18:44 +0900
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Subject: [FreeBSD-net-jp 1913] Re: Does self-ip_forwarding NAT exist ?
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$B$D$+$@$G$9!#(B
# $B$H$s$G$b$J$$4V0c$$$+$b!&!&!&(B

> -----Original Message-----
> From: owner-FreeBSD-net-jp@jp.freebsd.org
> [mailto:owner-FreeBSD-net-jp@jp.freebsd.org]On Behalf Of Yoshio Funaki
> Sent: Tuesday, September 14, 1999 1:16 PM
> To: FreeBSD-net-jp@jp.freebsd.org
> Subject: [FreeBSD-net-jp 1911] Re: Does self-ip_forwarding NAT exist ?
>
> subnetA$B$OJL(BLAN$B$@$H=q$-$^$7$?$1$I!"K\Ev$O(BsubnetA$B$+$i(BsubnetB$B$K9T$1$A$c(B
> $B$@$a$J$/$i$$$N%;%-%e%j%F%#!<$,I,MW$J$s$G$9$h!#(B
> $B!t!!9T$1$A$c$&$h$&$K$7$?$N$O;d$G$9$,!&!&!&!&(B ^^;
> $B$=$N$?$a(BsubnetA$B$H(BsubnetB$B$O(Bfirewall$B@\B3$G!"$7$+$b(Bip
> forwarding$B$7$?$/$J$$$s$G$9!#(B

$BLdBj$N(B Server $B$N$?$a$K(B subnet C $B$r?7@_$5$l$k$h$&$J$3$H(B
$B$r=q$+$l$F$$$?$h$&$K;W$$$^$9$,!"(Bfirewall A $B$K(B NIC $B$rDI2C(B
$B$7$F(B subnet C $B$r?7@_$9$l$P!"(Bfirewall A $B$r(B gateway $B$K$7$F(B
(1) $B%Q%1%C%H%U%#%k%?$G(B subnet A <-> subnet B $B$r$9$Y$F<WCG(B
(2) subnet A <-> subnet C $B$OF)2a(B
(3) subnet B <-> subnet C $B$O<WCG!)(B
$B$N$h$&$J$3$H$,$G$-$k$N$G$O!#(B
# firewall A $B$,(B FreeBSD $B$@$H2>Dj$7$F$$$^$9!#(B

> >$B$?$@OBED$5$s$b$*$C$7$c$C$F$k$h$&$K(B
> >$B$d$C$F$k$3$H$O(B gateway + $B%Q%1%C%H%U%#%k%?%j%s%0(B $B$H(B
> >$B$[$H$s$IJQ$o$i$J$$$s$G$9$1$I!"%]%j%7!<$K0cH?$7$J$$$s$G$9$+!)(B
>
> $B$[$s$H$O%@%a$G$9!#$G$9$s$G7QB3$7$F(BApp.gateway$B7?$N(BNAT$B$rC5$=$&$+(B
> $B$H;W$C$F$$$^$9!#(B

$B$3$N0F$b%]%j%7!<0cH?$K$J$k$N$+$b$7$l$^$;$s$,!&!&!&(B
# subnet C $B$r3z$^$;$k$3$H$G!"%;%-%e%j%F%#$N3NJ]!J(Bnet A-B $B4V(B
# $B$r40A4$K<WCG!)!K$O$G$-$=$&$J5$$,$7$^$9!#(B

$B$G$O$G$O(B
==
Hiroshi Tsukada

