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Date: Tue, 27 Mar 2001 14:47:23 +0900
Message-ID: <878zlryd90.wl@nabechan.org>
From: Shingo WATANABE / =?ISO-2022-JP?B?GyRCRU9KVRsoQiAbJEI/LThjGyhC?=
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To: FreeBSD-net-jp@jp.freebsd.org
In-Reply-To: <200103270313.MAA06348@moon.trad.pfu.co.jp>
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	<200103270313.MAA06348@moon.trad.pfu.co.jp>
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Subject: [FreeBSD-net-jp 3047] Re: about a PPPoE(ADSL)+nat problem 
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$B$o$?$J$Y$G$9!#(B

> >> DF $B%S%C%H$,N)$C$F$$$k%Q%1%C%H$rGK4~$9$k$H$-$O(B icmp unreach needfrag $B$,JV$C(B
> >> $B$F$/$k$O$:$J$s$G$9$,!"$=$l$,$I$3$+$GGK4~$5$l$F$$$k$N$+$J!#(B
> >> $B$3$l$,$A$c$s$HFO$+$J$$$N$,860x$@$H;W$$$^$9$,!"$J$K$+?4JU$j$O$"$j$^$;$s$+!)(B
> >> icmp $B$rA4ItDL$5$J$$%U%#%k%?(B, tcp, udp $B$7$+DL$i$J$$%U%#%k%?$H$+!"(Bicmp $B$r(B
> >> $BDL$5$J$$(B nat $B$H$+(B...
> 
> $B$3$l$rJV$9%k!<%?$O!$%f!<%6B&$8$c$J$/$F(BISP$BB&$G$7$g$&!%(B
> $B%f!<%6B&$NLdBj$8$c$J$$$H;W$$$^$9!%(B

$B$"$"!"<:Ni!#$=$&$G$9$M!#(B
$BA0$N%a!<%k$r$A$c$s$HFI$s$G$^$;$s$G$7$?!#8~$-$,5U$@$H;W$C$F$^$7$?!#(B


> # $B!V(BPath MTU discovery$B$r$=$C$A$NET9g$G;H$($J$/$9$k$J$i!$(BDF$B$rN)$F$k$J!%(B
> # DF$BN)$F$k$s$@$C$?$i(BPath MTU discovery$B$A$c$s$HF0$/$h$&$K$7$m$h!W$H$$$&$N$,(B
> # $B;d$N0U8+!%(B

$B8f0U!#(B

> $B$G$bAj<j$N%5%$%HB&$,$J$K$b$7$F$/$l$J$$$s$@$C$?$i<+J,B&$G$J$s$H$+$9$k$7$+$J$$(B
> $B$o$1$G!%!%!%$G!$(BTCP$B$N(BMSS option$B$r;H$C$F(B1packet$B$"$?$j$N(BTCP$B$N%G!<%?E>AwNL$r(B
> $B>.$5$/$J$k$h$&$K@)8f$7$A$c$*$&$H$$$&J}K!$,$"$j$^$9!%%k!<%?$r$7$F$$$k(BFreeBSD$B$G(B
> $B$=$l$r$d$k$J$i(Btcpmssd$B$,$=$l$r$d$C$F$/$l$k$i$7$$$H$$$&$o$1$G$9!%(B

$BJL2r$H$7$F!"%"%W%j%1!<%7%g%s%2!<%H%&%'%$$rF~$l$k$H$$$&<j$b0l1~$"$j$^$9$M!#(B
$B$?$@!"HFMQ@-$KK3$7$$$N$G$$$^$$$A!#(B

$B7k6I(B MSS $B=q$-49$($k$N$,;H$$>!<j$ONI$$$G$7$g$&$1$I!#(B
