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Date: Sun, 4 Aug 1996 23:04:33 +0900 (JST)
From: Ikuo Nakagawa <ikuo@isl.intec.co.jp>
Message-Id: <199608041404.XAA09524@pawn.isl.intec.co.jp>
To: FreeBSD-users-jp@jp.freebsd.org
In-Reply-To: <199608041021.TAA13444@MAGI.ns.maizuru-ct.ac.jp>
References: <199608041021.TAA13444@MAGI.ns.maizuru-ct.ac.jp>
Reply-To: FreeBSD-users-jp@jp.freebsd.org
X-Distribute: distribute [version 2.1 (Alpha) patchlevel=19]
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Subject: [FreeBSD-users-jp 3522] Re: IP Firewall
Errors-To: owner-FreeBSD-users-jp@jp.freebsd.org
Sender: owner-FreeBSD-users-jp@jp.freebsd.org

$B$$$/$*$G$9!#(B

>>>>> In article <199608041021.TAA13444@MAGI.ns.maizuru-ct.ac.jp>,
	Kunihiro_Tanaka <s4449@icsc.maizuru-ct.ac.jp> writes:

>>              CISCO          FreeBSD
>>   NCA5  -------/---------------/------------- $B<+J,$N%^%7%s(B
>> $B!J5~Bg!K(B ISDN      $B9;Fb%M%C%H(B     $B%5%V%M%C%H(B
>>                   202.19.104.?    192.168.0.?
>>                   202.19.105.?

NCA5 $B$H(B CISCO $B$N4V$N7PO)@)8f$r$I$&$7$F$$$k$+$o$+$j$^$9$+(B?

$B!tD>4QE*$K$O(B static $B$J$N$G$9$,(B...

>> $B30It8~$1$O!">e5-$N$h$&$G$$$$$N$G$9$,9;Fb$@$1$K8B$C$F%k!<%F%#%s%0$r$5$;$k(B
>> $B$3$H$O$G$-$J$$$s$G$7$g$&$+!#(B

$B5;=QE*$K%$%A%*%&$O2DG=$@$H;W$$$^$9!#$?$@$77PO)@)8f$NLdBj0J30$K$b(B
$B<!$N$h$&$JE@$KCm0U$9$kI,MW$O$"$j$^$9!#(B

  o $B>e5-$N9;Fb%M%C%H$G(B 192.168.0.? $B$H$$$&%"%I%l%9$,G'CN$5$l$F(B
    $B$$$kI,MW$,$"$j$^$9!#$3$l$O%"%I%l%9$,=E$J$i$J$$!"$H$$$&$3$H(B
    $B$rJ]>c$9$k$?$a$H!"(BDNS $BE*$K9;Fb$+$i$I$&8+$($k$+$I$&$+$H$$$&(B
    $BLdBj!"%"%/%;%9@)8B$NLdBj$,$"$k$?$a$G$9!#(B

  o 192.168.0.? $B$+$i%$%s%?!<%M%C%H$X=P$F9T$/(B packet $B$,L5$$;v$r(B
    $BJ]>c$9$kI,MW$,$"$j$^$9!#$?$H$($P(B CISCO $B$G(B filtering $B$9$k$H(B
    $B$$$&$N$,$R$H$D$N<j$G$9$,!"$H$b$+$/%$%s%?!<%M%C%H$K(B source
    address $B$,(B private $B$J$b$N$r=P$7$F$O$$$1$J$$$N$G!#(B

  o $B%U%!%$%"%&%)!<%k$r9=@.$7$F$$$k>l9g!"$=$l$H$N7s$M9g$$$,LdBj(B
    $B$K$J$k$3$H$,$"$k!#(B

  o $BB>$K$b$"$k$+$b$7$l$J$$(B :-P

>> $B$@$+$i$H$$$C$F!"(Brouted $B$G$=$N$^$^%k!<%F%#%s%0$9$k$h$&$K$7$F$7$^$C$?$i(B
>> $B30It$K%Q%1%C%H$,=P$k$+$b$7$l$J$$$N$G4m$J$$$G$9!#(B
         ~~~~~~~~
$B$3$3$G$N!V%Q%1%C%H!W$O=c?h$J(B IP packet $B$H$$$&0UL#$G$9$+(B? $B$=$l$H$b(B
$B7PO)>pJs$r>h$;$?(B RIP packet $B$N0UL#$G$9$+(B?

$BA0<T$J$i!"(B(routed $B1>!90JA0$K(B) FreeBSD $B$,(B Interenet Reachable $B$J$i(B
$BEvA330It$K%Q%1%C%H$O!V=P$k!W$H;W$C$?$[$&$,$$$$$G$9!#A0=R$NDL$j$=$l(B
$B$r2sHr$9$k<jCJ$OI,MW$K$J$j$^$9!#(B

$B8e<T$N>l9g!"30It$H$N@\B3$K(B RIP $B$r;H$$!"$7$+$b9;Fb$+$i$NA4$F$N7PO)(B
$B>pJs$r>e0L$KN.$7$F$$$k!"$H$$$&$N$O$A$g$C$H9M$($K$/$$$N$G!"$=$NJU$j(B
$B$r3NG'$7$F$_$F$O$$$+$,$G$7$g$&$+(B?

$B!t(B $B$A$J$_$K!"9;Fb%M%C%H$N7PO)@)8f$O(B RIP $B$H9M$($FNI$$$G$7$g$&$+(B?
-- 
Ikuo Nakagawa <ikuo@intec.co.jp>
