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To: FreeBSD-net-jp@jp.FreeBSD.org
From: KIRIYAMA Kazuhiko <kiri@kiri.toba-cmt.ac.jp>
In-Reply-To: Your message of "Mon, 11 Aug 1997 18:00:03 +0900"
References: <199708110900.SAA06942@nocs3.noc.titech.ac.jp>
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Date: Tue, 12 Aug 1997 22:29:03 +0900
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Subject: [FreeBSD-net-jp 58] Re: natd vs IP-fil(ipnat)
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$B6M;3(B $B$G$9!#(B

Message-ID: <199708110900.SAA06942@nocs3.noc.titech.ac.jp> $B$N5-;v$K$F(B
IIJIMA Akihiro <aki@noc.titech.ac.jp> $B$5$s$O=q$+$l$^$7$?(B :

> IP-filter$B$KF~$C$F$$$k(B ipnat$B$H(B natd$B!"$I$A$i$,(B
> 	$B6/NO$G$7$g$&$+!)(B

$B$3$l$O;d$K$O$o$+$j$+$M$^$9$,!"$H$j$"$($:N>J}(B(ip_fil3.2beta1 $B$H(B 
natd_1.8)$B%$%s%9%H!<%k$7$FF0$+$7$?$s$G$9$,;DG0$J$,$i(B ip_fil3.2beta1 $B$N(B
$BJ}$OF0:nIT0BDj(B($B$A$c$s$H860x$rFM$-;_$a$i$l$J$+$C$?(Bf^^;)$B$G(B natd_1.8 $B$GF0(B
$B$+$7$F$^$9!#%^%K%e%"%kN`$NK-IY$5$+$iN`?d$7$F(B ipnat $B$NJ}$,6/NO$J$s$G$7$g(B
$B$&$+(B > $B;0J?$5$s(B

> 	$B@_Dj$,4JC1$G$7$g$&$+!)(B

$B$3$l$OL@$+$K(B natd $B$K73G[$,>e$k$H;W$$$^$9!#(Bip_fil3.2beta1 $B$O%$%s%9%H!<(B
$B%k;~$K%+!<%M%k$N%=!<%9$r;2>H$9$k$N$G%$%s%9%H!<%kA0$K0lEY(B config $B$7$H$$(B
$B$F%$%s%9%H!<%k8e$K%+!<%M%k%3%s%Q%$%k$H$A$g$C$H<j4V$,$+$+$j$^$9!#$J$*!"(B
$B%$%s%9%H!<%k$K$D$$$F$O(B($B$$$1$J$$$3$H$G$9$,(B)port$B$NNO$r<Z$j$G0l<o$N%$%s%9(B
$B%H!<%i$r:n$j$^$7$?!#(B $B$3$l$O(B port$B$8$c$J$$$N$G(B ports-jp $B$KF~$l$i$l$J$$$N(B
$B$G;d$N8D?M%5%$%H(B($B$3$l$O(B natd $B$rDL$7$?%W%i%$%Y!<%H%M%C%H%o!<%/Fb$K$"$j(B
$B$9(B) ftp://pis.toba-cmt.ac.jp/pub/pis/ports/net/{ip-fil,nat}$B$KFM9~$s$I(B
$B$-$^$7$?!#(B

> 	VersionUP$B$,7c$7$$$G$7$g$&$+!)(B

$B:#G/(B(1997)$B$KF~$C$F$+$i$O0J2<$N$h$&$K$J$C$F$^$9!#(Bip_fil $B$NJ}$,Ls#2G\7c(B
$B$7$$$G$9$M!#(B

      IP Filter         |      natd
------------------------+--------------------
3.2beta2        6/8     
                                1.9     4/8
3.2beta1        5/7     
3.2alpha9       16/6 
                                1.8     15/6
3.2alpha8       13/6 
                                1.7     5/6
                                1.6     3/6
3.2alpha7       25/5 
3.2alpha6       8/5     
                                1.5      6/5
3.2alpha5               
                                1.4     21/4
3.2alpha4       2/4     
3.2alpha3       31/3 
3.2alpha2               
                                1.3     27/2
                                1.2     26/2
3.1.10          23/3 
3.1.9           8/3         
3.1.8           18/2            1.1     18/2
3.1.7           8/2 
3.1.7beta       30/1 
3.1.7alpha      30/1 
                                0.2     29/1
3.1.6           21/1 
3.1.5           13/1 
                                0.1     12/1
3.1.4           10/1    
3.1.3           10/1 
------------------------+---------------------
 $BJ?6Q(B $BLs(B10$BF|(B/$B%j%j!<%9(B   | $BJ?6Q(B $BLs(B20$BF|(B/$B%j%j!<%9(B

natd $B$K$D$$$F$7$+Ez$($i$l$^$;$s$,!"(B

> $B:#(B $B9M$($F$$$k;H$$J}$O(B
>   $BFbB&$K$O(B private-address$B$rIU$1$k!#(B
>   $BFbB&$+$i(B $B30$X$N(B Web,ftp,Realaudio(UDP) $B$J$I$r(BIP$B%"%I%l%9JQ49$7$FDL?.(B
>   $B$7$?$$!#(B

$B$3$l$O2DG=$G$9!#%U%!%$%"%&%)!<%k>e$K(B natd $B$r%$%s%9%H!<%k$9$k$@$1$G(B OK 
$B$G$9!#(B

>   $B30$+$iCf$X$NDL?.$O(B $B$$$^$N$H$3$m$O$"$-$i$a$k!#(B
> 	($B%a!<%k(B Web$B%5!<%P$O(B firewall$B%^%7%s$N>e$K=8Cf$9$k(B)

$BD|$a$kI,MW$J$J$$$H;W$$$^$9$,(B...$B!#%a!<%k!"(BWeb$B!"(BFTP$B%5!<%P6&$KHs>o$K4JC1(B
$B$K!V@_1D!W$G$-$^$9!#FC$K(B Web, FTP $B$K4X$7$F$O%U%!%$%"%&%)!<%k>e$G(B natd 
$B$N%3%s%U%#%.%e%l!<%7%g%s%U%!%$%k>e$G$R$g$$$HCf$K%5!<%P$K8~$1$k$@$1$G(B 
OK $B$G$9!#$^$?!"%a!<%k%5!<%P$K$D$$$F$b(B qmail $B$r;H$($P(B 30$BJ,$G$G$-$^$9!#(B

$B!t(B $B$3$N4JC1$J@_Dj$r#2=54V$bG:$s$G$7$^$C$?!#$=$N4V(B qmail-ML $B$N4IM}<T$r(B
$B!t(B $B2?EY$H$J$/%-%i$7$^$7$?(B^^;;

>   $B%a!<%k%5!<%P$J$I$r(B $BCf$KCV$$$F!"30$+$iCf$X$NDL?.$N$&$AFCDj$N%b%N$@$1(B
>   $B$r8GDjE*$K%"%I%l%9JQ49$9$k!#(B
> $B$3$&$$$&$N$O(B $B$G$-$^$9$+!)(B

$B!VFCDj$N%b%N!W$H$$$&0UL#$,:#0l$D$h$/$o$+$j$^$;$s$,!"%a!<%k%5!<%P$K$D$$(B
$B$F$O$d$C$F$_$?$3$H$O$"$j$^$;$s$,(B qmail$B$N%^%K%e%"%k$r8+$?$+$s$8$G$O4JC1(B
$B@_Dj$G$-$=$&$G$9!#(B 

$B0J>e4JC1$G$9$,(B...$B!#(B

$B!t(B $B$J$*!"(B natd $B$K$D$$$F$O:G?7%P!<%8%g%s$O(B 1.9 $B$G$9$,(B 2.2.2-RELEASE$B>e$G(B
$B!t(B $BF0$+$7$?7k2L!"30It$+$iFbIt$X$N%Q%1%C%H$,DL$i$:8=:_(B 1.8 $B$G2TF/$7$F$^$9!#(B
$B!t(B $BA4$/F1$8%3%s%U%#%.%e%l!<%7%g%s%U%!%$%k$*$h$S5/F0%9%/%j%W%H$r;H$C$F$$$k(B
$B!t(B $B$s$G$9$,860x$,$o$+$j$^$;$s!#$3$l$OJL%a!<%k$K$7$^$9!#(B
------------------------------------------------------------------------
$B6M;3OBI'(B <kiri@kiri.toba-cmt.ac.jp>                 $BD;1)>&A%9bEy@lLg3X9;(B
                                                          $BEE;R5!3#9)3X2J(B
