From owner-FreeBSD-net-jp@jp.freebsd.org  Fri Apr 16 10:12:42 1999
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Date: Fri, 16 Apr 1999 09:31:11 +0900
From: MIHIRA Sanpei Yoshiro <sanpei@sanpei.org>
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Subject: [FreeBSD-net-jp 1507] Re: NAT =?ISO-2022-JP?B?GyRCJE5AXxsoQg==?=
 =?ISO-2022-JP?B?GyRCRGobKEI=?= 
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>$B$3$N$H$-!"Cf$+$i30$X=P$F9T$/%Q%1%C%H$O(B 192.168.1.1 $B$K%"%I%l%9JQ49$5$l$^(B
>$B$9$,!"(BFirewall $B<+?H$N%"%/%;%9$b(B 192.168.1.1 $B$K$J$k$?$a!"30$N%^%7%s$G$O(B
>$BN><T$N6hJL$,$G$-$^$;$s!#(B

  natd $B$G$O$J$/(B, FreeBSD $B$G;H$($k(B NAT $B$r$7$F$/$l$kJL$N%W%m%0%i%`$G$"(B
$B$k(B IP Filter $B$J$i$P(B, $B2<5-$N(B rule $B$rMQ$$$k$3$H$G(B, $B$44uK>$N@_Dj$,MF0W(B
$B$K$G$-$^$9(B.

	http://cheops.anu.edu.au/~avalon/ip-filter.html

	$B$^$?$O(B, FreeBSD-3.1-RELEASE $B$J$i$P(B, $B$A$g$H8E$$(B IP Filter $B$,(B
	$BI8=`$GAuHw(B(SEE ipnat and /sys/i386/conf/LINT options IPFILTER)

rc.conf $BE*$K$O2<5-$N(B natd $B$HF1$8@_Dj(B
ifconfig_nic0_alias0="inet 192.168.1.254 netmask 255.255.255.255"

ipnat $B$K?)$Y$5$;$k(B NAT rule
map nic0 10.0.0.0/8 -> 192.168.1.254/32 portmap tcp/udp 40000:60000
map nic0 10.0.0.0/8 -> 192.168.1.254/32

  natd $B$G$O<B8=$G$-$J$$>l9g$K$O$4MxMQ2<$5$$(B :-)

MIHIRA Yoshiro
IP Filter $B$N;H$$J}$r=q$$$?%I%-%e%a%s%H$b(B
http://www.jp.freebsd.org/misc/SSE/ $BJU$GC5$;$P(B
$B$$$/$D$+8+$D$+$k$H;W$$$^$9(B. 
