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Date: Wed, 17 Oct 2001 10:18:48 +0900
Message-ID: <87n12rkqrr.wl@miffy.taihei-dengyo.co.jp>
From: Masaki Mizutani <m-saki@rr.iij4u.or.jp>
To: FreeBSD-users-jp@jp.freebsd.org
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Subject: [FreeBSD-users-jp 64886] Re: DHCP & ipfw
Errors-To: owner-FreeBSD-users-jp@jp.freebsd.org
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X-Originator: m-saki@rr.iij4u.or.jp

$B$_$:$?$K$H?=$7$^$9!#(B

$B>/$78E$$$*OC$7$G?=$7Lu$"$j$^$;$s!#(B

DHCP$B$G5/F0;~$K3d$jEv$F$i$l$?%"%I%l%9$r(B /usr/local/etc/rc.d/ipfw.sh $BFb$G(B
$B<hF@$7$F(Bipfw$B$N%k!<%k@_Dj$7$F1?MQ$7$F$$$?$N$G$9$,!"(B
$B$=$N$7$/$_$r$^$,$i$5$s$N=q$+$l$?J}K!$KJQ$($h$&$H$7$F$$$^$9!#(B

At Sun, 07 Oct 2001 23:31:24 +0900,
Magara Yasuhiro <y-magara@nifty.com> wrote:
> $B$A$J$_$K!"(BPPP$B$8$c$J$/$F(BDHCP$B$N>l9g$O!"(Bdhclient-script$B$NCf$G8F$P$l$k(Bhook$B$G(B
> $BF1MM$N;v$,$G$-$^$9$M!#(BCATV$B%W%m%P%$%@$r2rLs$9$kA0$O$3$C$A$r;H$C$F$^$7$?!#(B

$B$3$NJ}<0$r;H$$!"(B
	$B5/F0;~$b$7$/$O%"%I%l%9JQ99;~$K$O(Bipfw$B%k!<%k=q$-49$((B
$B$r$7$h$&$H$7$F$$$^$9!#(B

$B$$$^$^$G;H$C$F$$$?%9%/%j%W%H$K(B
	$B!&0z?t$K(B'start'$B$H$+(B'stop'$B$H$+$D$1$J$/$F$bF0$/$h$&$K(B
	$B!&(BIP$B%"%I%l%9(B,$B%^%9%/(B,$B%$%s%?!<%U%'%$%9$N<hF@$K(Bdhclient-script$BFb$N(B
	$B!!JQ?t$r;H$&$h$&$K(B
$B<j$r2C$(!"(B/etc/dhclient-exit-hooks $B$H$$$&L>A0$K$7$FJ|$j$3$_$^$7$?!#(B

$B$H$3$m$,!#(B
$B$J$s$@$+$&$^$/F0$-$^$;$s!#(B
	$B!&%7%j%"%k%3%s%=!<%k$G8+$F$$$k$H!"(B2$B2s$/$i$$(B dhclient-exit-hooks
	$B!!$,8F$P$l$F$$$k(B(hook$BFb$G(B$exit_status$B$H$+8+$J$-$c$$$1$J$$$N(B?)
	$B!&%k!<%k$O!V(Bdeny ip from any to any$B!W$@$1$K$J$C$F$$$k(B($B%G%U%)%k%H(B)

$B<B5!$,$*$&$A$K$"$C$F!"$7$+$b%b%K%?L5$7$N>uBV$J$N$G!":#$3$l0J>e>\$7$/$O(B
$BD4$Y$i$l$^$;$s$,!"3NG'$9$Y$-9`L\Ey$"$j$^$7$?$i65$($F2<$5$$!#(B


$B$b$R$H$D!#(B
$B@N$N%9%/%j%W%H(B($B>e5-(B /usr/local/etc/rc.d/ipfw.sh)$B$G%M%C%H%^%9%/<hF@$9$k$N$K(B
oif="ed1"
omask=`ifconfig ${oif} |
awk '
/inet/{
        split("1 2 3 4 5 6 7 8 9", hex, " ");
        hex[0]=0;
        hex["a"]=10;
        hex["b"]=11;
        hex["c"]=12;
        hex["d"]=13;
        hex["e"]=14;
        hex["f"]=15;
        for(i=0; i<=3; ++i){
                ip[i]=hex[substr($4,2*i+3,1)]*16+hex[substr($4,2*i+4,1)];
        };
        printf("%d.%d.%d.%d\n",ip[0],ip[1],ip[2],ip[3]);
}'`
$B$3$s$J$3$H$7$F$?$s$G$9$1$I!"$b$&$A$g$C$H%;%s%9$NNI$$!"$H$$$&$+(B
$BNO6H$8$c$J$$J}K!$C$F$"$j$^$9$G$7$g$&$+!#(B(^^;

-- 
$B?eC+!!@5<y(B / m-saki@rr.iij4u.or.jp
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