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Date: Tue, 18 Feb 2003 17:21:20 +0900
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Subject: [FreeBSD-users-jp 73485] PPPoE =?ISO-2022-JP?B?GyRCJEcbKEI=?=
 =?ISO-2022-JP?B?GyRCSiM/dBsoQg==?= ISP
 =?ISO-2022-JP?B?GyRCJEhGMTt+QFxCMyQ5JGtKfUshGyhC?= 
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X-Distribute: distribute version 2.1 (Alpha) patchlevel 24e+030107

$B$3$s$K$A$O!"Cf;3$H?=$7$^$9!#(B

http://home.jp.freebsd.org/cgi-bin/showmail/FreeBSD-users-jp/71102
$B$N%9%l%C%I$d(B
$B!!0KF#(B@euc.JP$B$5$s$N%Z!<%8(B http://euc.jp/network/pppoe.ja.html
$B!![X3@$5$s$N%Z!<%8(B http://www.yas.mu/network/fletsq/
$B$r;29M$K!"(B
$BF10l%^%7%s$+$i(B2$B$D$N(BISP$B$XF1;~$K(BPPPoE$B@\B3$7(B
$B%0%m!<%P%k(BIP$B$r(B2$B$D;}$C$?%5!<%P$rN)$F$?$$$H;W$C$?$N$G$9$,!"(B
$B%k!<%F%#%s%0<~$j$G$I$&$K$b2r7h$G$-$J$$$N$G!"<ALd$5$;$F$/$@$5$$!#(B

$B8=>u$N9=@.$O0J2<$N$H$*$j$G$9!#(B

      +-----------+
      | Internet  |
      +-----------+
         |     |
    [ISP-1]   [ISP-2]
       |         |     $B"+(BPPPoE$B$rF1;~$K(B2$B%;%C%7%g%sD%$k(B
    +---------------+
    |  B$B%U%l%C%DLV(B  |
    +---------------+
            |
      +------------+
      | $B<+Bp%^%7%s(B |
      |(FreeBSD4.4)|
      +------------+
            |
       [$B2HDmFb(BLAN]

$B=t;v>p$G#2$D$N(BISP$B$X2CF~$7$F$$$?$?$a!"(B
$B#1Bf$N<+Bp%^%7%s$K!"(BPPPoE$B7PM3$G%0%m!<%P%k#I#P$r#2$D<hF@$7(B
$B%W%i%$%^%j$H%;%+%s%@%j$N(BDNS$B$rF10l%^%7%s$G1?MQ$7$F!"5$7Z$K%I%a%$%s$r(B
$B<hF@$7$?$$$J$H9M$($?$N$G$9$,(B($B$b$A$m$sH?B'$G$9$,(B ^^;)$B!"(B
$B0J2<$N$h$&$JLdBj$,5/$-$F$$$^$9!#(B

$B$^$:!"%k!<%F%#%s%0%F!<%V%k$O0J2<$N$h$&$K$J$C$F$$$^$9!#(B

$B!!(B$ netstat -rn -finet
$B!!(BInternet:
$B!!(BDestination      Gateway        Flags Refs   Use Netif Expire
$B!!(Bdefault          211.13.XXX.XX  UGSc    12 72076  tun0
$B!!(B127.0.0.1        127.0.0.1      UH       1   152   lo0
$B!!(B192.168.0        link#1         UC       1     0   xl0
$B!!(B203.141.ZZZ.ZZZ  61.206.ZZ.ZZ   UH       0     0  tun1
$B!!(B211.13.XXX.XX    61.213.XX.XXX  UH      12     0  tun0

$B!!"((B tun0 $B!D(B ISP-1$B$X(BPPPoE$B@\B3!#(B
$B!!!!(B tun1 $B!D(B ISP-2$B$X(BPPPoE$B@\B3!#(B
$B!!!!(B xl0  $B!D(B $B2HDmFb(BLAN$BB&(Bgw$B!#(B192.168.0.1$B!#(B

$B;29M$^$G$K!"(Bipfw $B$N@_Dj$O0J2<$N$H$*$j$G$9!#(B
natd$B$O!"(B-p 8668 -n tun0 $B$H(B -p 8669 -n tun1 $B$N#2$D$r(B
$B%G!<%b%s$H$7$FF0:n$5$;$F$$$^$9!#(B

$B!!(B$ sudo ipfw show
$B!!(B00100    344    38446 allow ip from any to any via lo0
$B!!(B00200      0        0 deny ip from any to 127.0.0.0/8
$B!!(B00300      0        0 deny ip from 127.0.0.0/8 to any
$B!!(B00400  91058 31092273 divert 8668 ip from any to any via tun0
$B!!(B00500     63     7050 divert 8669 ip from any to any via tun1
$B!!(B00600 151842 60150899 allow ip from any to any
$B!!(B65535      0        0 deny ip from any to any

$B$3$3$G!"Nc$($P(Bssh$B$d(Bhttp$B$J$I(B
$B!!(BInternet $B"*(B [ISP-1]$BB&(BIP(=61.213.XX.XXX=tun0)$B$X$N(BTCP$B@\B3(B
$B$OA4$/LdBj$J$$$N$G$9$,!"(B
$B!!(BInternet $B"*(B [ISP-2]$BB&(BIP(=61.206.ZZ.ZZ=tun1)$B$X$N(BTCP$B@\B3(B
$B$r9T$*$&$H$9$k$H!"(B
$B$I$&$b(Btcpdump$B$GD/$a$F$$$k$H(B

$B!!#1!%(BSYN$B%Q%1%C%H$O!"L5;v(B tun1 $B$XFO$$$F$$$k!#(B
$B!!#2!%$,!"$=$N(BACK$B%Q%1%C%H$,!"(B
$B!!!!!!%G%U%)%k%H%2!<%H%&%'%$$G$"$k(B tun0 $B$+$iAw?.85$XJV$5$l$k!#(B
$B!!#3!%EvA3!"Aw?.85$G$O!"$=$N(BACK$B%Q%1%C%H$OL5;k(B(?)$B!#(B
$B!!#4!%(BTCP$B%;%C%7%g%s3NN($;$:!D(B

$B$H$$$&8=>]$,5/$-$F$7$^$C$F$$$k$h$&$G$9!#(B

Default gateway $B$r(B 192.168.0.1 $B$H$7!"(Brouted $B$rF0$+$;$P(B
$B$h$$$N$+$H$b;W$C$?$N$G$9$,!":#EY$O%Q%1%C%H$,30(B(=$B%$%s%?!<%M%C%H(B)$B$X(B
$B=P$F9T$+$J$/$J$C$F$7$^$$!"$&$^$/$$$-$^$;$s$G$7$?!#(B

$B$=$b$=$b!"$3$&$$$C$?$3$H!"$D$^$j(B
$B!!#1Bf$N%^%7%s$G%0%m!<%P%k(BIP$B$r#2$D;}$A!"(B
$B!!$=$l$>$l$N(BIP$B$X$N@\B3MW5a$r$&$^$/=hM}$9$k$3$H(B
$B$,M}O@E*$K2DG=$J$N$+$I$&$+$b$h$/J,$+$C$F$$$J$$$N$G$9$,!#!#(B
$B;}$A9g$o$;$F$$$k$D$?$J$$%k!<%F%#%s%0$NCN<1$G$O$3$l$,8B3&$G(B
$B$_$J$5$s$N$*CN7C$rGR<Z$G$-$l$P$H;W$C$?<!Bh$G$9!#(B

$B$I$J$?$+$&$^$$2r7hJ}K!$,$"$l$P!"65$($F$/$@$5$$!#(B
$B$h$m$7$/$*4j$$$7$^$9!#(B

