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From: NAKAMURA Takeshi <1yen@sh.rim.or.jp>
To: FreeBSD-users-jp@jp.FreeBSD.org
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Date: Fri, 09 Jul 2004 15:19:22 +0900
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Subject: [FreeBSD-users-jp 80097] Re: MAC =?ISO-2022-JP?B?GyRCJSIbKEI=?=
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$BCgB<$G$9!#(B

On Fri, 9 Jul 2004 14:33:07 +0900,
 "h.yamanaka" <yamanaka_hideki@yahoo.co.jp> wrote:

> $B$N$G$9$,!"(BIPFilter$B$d(BIPFW$B$G(BMAC$B%"%I%l%9$N%U%#%k%?%j%s%0$O(B
> $B2DG=$G$7$g$&$+!#(B
> $B$=$N>l9g$K$O!"$I$N$h$&$J@_Dj$,I,MW$+$*65$(2<$5$$!#(B
> 
> $B$$$/$D$+$R$m$$FI$_$7$?$N$G$9$,!"(BIP$B%"%I%l%9$G$N%U%#%k%?$K4X$9$k(B
> $B@bL@$O$"$j$^$9$,!"(BMAC$B%"%I%l%9$G$N%U%#%k%?$N2r@b$O(B
> $B$"$^$j$"$j$^$;$s$G$7$?!#(B

$B$"$^$j$J$/$F$b(B ipfw $B$N%^%K%e%"%k$K(B
     { MAC | mac } dst-mac src-mac
             $BM?$($i$l$?(B dst-mac $B%"%I%l%9$H(B src-mac $B%"%I%l%9$r;}$D%Q%1%C%H$K(B
             $B%^%C%A$7$^$9!#(B
$B$H!"=q$$$F$"$k$N$G(B ip $B%Y!<%9$N%U%#%k%?%j%s%0$N(B `from src-ip to dst-ip' $B$r(B
$B$=$N$^$^CV$-49$($k$@$1$G!"$G$-$k$H;W$$$^$9!#(B
# ipf $B$OA4$/;H$C$?$3$H$,$J$$$N$G$4MF<O!#(B

 $B$"$H$O!"(B`arp -S ip mac' $B$G(B ip $B$H(B mac $B%"%I%l%9$NBP1~$r8GDj$7$F(B ip $B$r85$K(B
$B%U%#%k%?%j%s%0$9$k$3$H$b$G$-$k$H;W$$$^$9!#(B

 $BN>J}$H$b!V;W$$$^$9!W$J$N$O!"<B:]$K;H$C$F$$$J$$$+$i(B(^^;;;
 $B$d$i$J$"$+$s$J$!$H!";W$C$F$k$H$3$m$b$"$k$s$G$9$,!#(B
$B;n$7$F7k2L$r65$($F$/$l$k$H4r$7$$$G$9!#(B
# $B$J$s$+J9$/?M$,5UE>$7$F$7$^$C$?5$$,$7$J$/$b$J$$!#(B
----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+
 $B4X@>2-Fl@DG/$N=8$$(B $B$,$8$^$k$N2q(B $B<jEA$$(B $B0l?M$@$1$N>!<j$K?@F`@n;YIt(B
 $BCgB<(B $BIp(B <1yen@sh.rim.or.jp>

