From owner-IPv6-jp@jp.freebsd.org  Wed Aug 12 18:21:08 1998
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To: IPv6-jp@jp.freebsd.org
In-Reply-To: Your message of "Wed, 12 Aug 1998 12:36:32 +0900"
References: <9808.902892992@coconut.itojun.org>
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Date: Wed, 12 Aug 1998 18:21:25 +0900
From: MIHIRA "Sanpei" Yoshiro <sanpei@yy.cs.keio.ac.jp>
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X-Sequence: IPv6-jp 154
Subject: [IPv6-jp 154] Re: IPsec with NAT(IP masquerade) 
Errors-To: owner-IPv6-jp@jp.freebsd.org
Sender: owner-IPv6-jp@jp.freebsd.org

>	site B$BF~8}$N(BNAT router$B$r$+$aH"$K$G$-$J$$$N$G$7$g$+!#$=$l$J$i$^$@>/$7$O(B
>	$B5_$$$,$"$j$^$9$,!#(B
>	$B$?$@$7!"$$$^$N$H$3$m%+!<%M%k$A$g$$$HD>$5$J$$$H$@$a!#(B
>
>	[[site A]] -- gw A ======== gw B -- [[site B]]
>				    (NAT)	private address

  $B:#2s$N(B gw B $B$O(B, $BEl5^%1!<%V%k%F%l%S$N%k!<%?$K$J$j$^$9(B. $B$J$N$G(B, $B$+$a(B
$BH"2=$OL5M}$G$9(B....
----------
  dial-up $B$NOC$O(B

	[[site A]] -- gw A ======== gw B(but dial-up IP)---[[site C]]

$B$G$9(B. $B$d$C$Q$j(B gw A $B$O(B gw B $B$N(B global IP $B$rCN$C$F$$$J$$$H$@$a$G$9$h(B
$B$M!D!D(B

  $B$"$H$O(B, tunnel $B$r:n$j=P$;$k%W%m%0%i%`$rC5$7$F$_$^$9(B. (tunnel over
ssh $B$@$H(B, $B>o;~@\B3(B but NAT $B$NCf$J$i2DG=$G$9$,(B, dial-up $B4D6-$G$O>o;~(B
$B@\B3$K$J$i$J$$$N$G(B, $BL5M}$G$9$M(B, $B$=$b$=$b(B site A ---> site C $B$N%Q%1%C(B
$B%H$r$I$&$9$k$+$,(B, dial-up $B$JAj<j$G$OO@30$G$9$M(B ^^;)

  $B<:Ni$7$^$7$?(B ^^;

sanpei
