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From: SAITO Masaru <daisaito@lares.dti.ne.jp>
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Subject: [FreeBSD-net-jp 4203] 1 =?ISO-2022-JP?B?GyRCJEQkThsoQg==?= network
 =?ISO-2022-JP?B?GyRCJEsjMiREJE4layE8JT8kTjRENi0kRyROGyhC?= dns
 server =?ISO-2022-JP?B?GyRCJE5AX0RqJEskRCQkJEYbKEI=?= 
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X-Distribute: distribute version 2.1 (Alpha) patchlevel 24e+060209

$Bc7F#!w2#IM$G$9!#(B

router1$B$H(Brouter2$B$rJL!9$N(BISP$B$K@\B3$7$F$$$F(B
$B$=$l$>$l$N(Bport53(tcp/udp)$B$r(Bserver$B$K9T$/$h$&$K$7$F$$$^$9!#(B
$B;d$N;}$C$F$$$k%I%a%$%s$N%W%i%$%^%j(Bdns$B$r(Ba.b.c.d$B$K$7$F$$$F!"(B
$B%;%+%s%@%j(Bdns$B$r(Bw.x.y.z$B$K@_Dj$7$?$s$G$9$1$I!"$&$^$/$$$-$^$;$s!#(B

$B!!(B    ISP1                     ISP2
$B!!(B     |                        |
$B!!(B+----+----+a.b.c.d       +----+----+w.x.y.z
$B!!(B| router1 |              | router2 |
$B!!(B+----+----+192.168.1.1   +----+----+192.168.1.2
$B!!(B     |                        |
-------+---------+--------------+----+-----192.168.1.0/24
$B!!(B               |                   |
$B!!(B               |                   |
192.168.1.10+----+----+         +----+----+192.168.1.20
$B!!(B          | server  |         | windows |
$B!!(B          +---------+         +---------+


server$B$N(Bstatic route$B$N@_Dj$O(B
route add default 192.168.1.1
route add w.x.y.z 192.168.1.2
$B$H$J$C$F$$$^$9!#(B

$B$7$+$7!"30$+$i%;%+%s%@%j(Bdns$B7PM3$G$NL>A02r7h$NMM;R$r(Btcpdump$B$G8+$F$_$k$H(B
udp$B%Q%1%C%H$O(Bserver$B$KFO$$$F$$$^$9$,!"$=$NLa$j$N(Budp$B%Q%1%C%H$O(Brouter1
$B$K9T$C$F$$$^$9!#$h$/9M$($F$_$k$H(Bw.x.y.z$B$K@\B3$7$F$$$k(Bsrc ip$B$OEvA3(Bw.x.y.z
$B$G$O$J$/IaDL$N%0%m!<%P%k(BIP$B$J$o$1$G$9!#(B

$B$J$N$G7k6I(Broute add w.x.y.z 192.168.1.2$B$OL50UL#$@$C$?$o$1$G$9!#(B
tcp$B$J$i(Bp2p$B@\B3$5$l$k$N$G$3$&$$$&LdBj$OH/@8$7$J$$$H;W$&$s$G$9$,!"(B
upd$B$N>l9g$NLa$j%Q%1%C%H$O$I$&$7$F$b(Bdefault gateway$B$K9T$C$F$7$^$$$^$9$7!"(B
$B$=$l$,O@M}E*$K$O@5$7$$$H;W$$$^$9!#(B

$B$J$K$+NI$$2r7hJ}K!$O$J$$$b$N$G$7$g$&$+!)(B



