From owner-FreeBSD-net-jp@jp.freebsd.org  Tue Mar 27 13:38:36 2001
Received: (from daemon@localhost)
	by castle.jp.freebsd.org (8.9.3+3.2W/8.7.3) id NAA84963;
	Tue, 27 Mar 2001 13:38:36 +0900 (JST)
	(envelope-from owner-FreeBSD-net-jp@jp.FreeBSD.org)
Received: from sylph.sat.t.u-tokyo.ac.jp (nat.keisu.t.u-tokyo.ac.jp [133.11.68.2])
	by castle.jp.freebsd.org (8.9.3+3.2W/8.7.3) with ESMTP id NAA84951
	for <FreeBSD-net-jp@jp.freebsd.org>; Tue, 27 Mar 2001 13:38:35 +0900 (JST)
	(envelope-from simokawa@sat.t.u-tokyo.ac.jp)
Received: from ett.sat.t.u-tokyo.ac.jp (ett.sat.t.u-tokyo.ac.jp [10.6.1.30])
	by sylph.sat.t.u-tokyo.ac.jp (Postfix) with ESMTP id 608092DABE
	for <FreeBSD-net-jp@jp.freebsd.org>; Tue, 27 Mar 2001 13:38:35 +0900 (JST)
Received: from ett.sat.t.u-tokyo.ac.jp by ett.sat.t.u-tokyo.ac.jp (8.11.1/sat-V0.6)
	id f2R4cYX69853; Tue, 27 Mar 2001 13:38:35 +0900 (JST)
Date: Tue, 27 Mar 2001 13:38:34 +0900
Message-ID: <ybsg0fz4yid.wl@ett.sat.t.u-tokyo.ac.jp>
From: Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp>
To: FreeBSD-net-jp@jp.freebsd.org
In-Reply-To: <200103270313.MAA06348@moon.trad.pfu.co.jp>
References: <87bsqox7g1.wl@nabechan.org>
	<200103270313.MAA06348@moon.trad.pfu.co.jp>
User-Agent: Wanderlust/2.5.2 (Smooth) REMI/1.14.3 (Matsudai) FLIM/1.13.2 (Kasanui) APEL/10.2 MULE XEmacs/21.2 (beta19) (Shinjuku) (i386-unknown-freebsd3.2)
X-Face: OE([KxWyJI0r[R~S/>7ia}SJ)i%a,$-9%7{*yihQk|]gl}2p#"oXmX/fT}Bn7:#j7i14gu$
 jgR\S*&C3R/pJX<mI-4Z8'mqt1R'CjWdw-xqVoilv`\JgZcquM5oVuO^<vt/~051rCDM(`{rM~?{Ok
 r,XC+}Ycm9IJO)odT*-0nyJjBJYzL{GsZ
MIME-Version: 1.0 (generated by REMI 1.14.3 - "Matsudai")
Content-Type: text/plain; charset=ISO-2022-JP
Reply-To: FreeBSD-net-jp@jp.freebsd.org
Precedence: list
X-Distribute: distribute version 2.1 (Alpha) patchlevel 24e+000315
X-Sequence: FreeBSD-net-jp 3046
Subject: [FreeBSD-net-jp 3046] Re: about a PPPoE(ADSL)+nat problem
Errors-To: owner-FreeBSD-net-jp@jp.freebsd.org
Sender: owner-FreeBSD-net-jp@jp.freebsd.org
X-Originator: simokawa@sat.t.u-tokyo.ac.jp

$B$4$a$s$J$5$$(B, packet $B$NO"B3@-$r3NG'$7$F$^$;$s$G$7$?(B.

> $B$C$F$J$k$N$G$9$,!$(B
> 
> 	06:10:14.166130 member.nifty.ne.jp.http > tp535.marina.home.2594:
> 				. 228:1688(1460) ack 327 win 8760 (DF)
> 
> $B$C$F%Q%1%C%H$,$9$C$+$jH4$1Mn$A$F$k$N$,;_$k860x!%8e$NOC$N$?$a$K8@$C$F$*$/$H!$(B
> $B$3$N(BIP$B%Q%1%C%H$NA4D9$O(B1500byte(IPheader(20)+TCPheader(20)+TCPdata(1460))$B!%(B

$B$*$C$7$c$kDL$j$G$9(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

$B8f0U(B.
Firewall/NAT $B$N@_Dj$9$kB&$K$H$C$F$O(B, icmp $B$r$I$&$"$D$+$&$+F,$,DK$$$G$9$,(B.

/\ Hidetoshi Shimokawa
\/  simokawa@sat.t.u-tokyo.ac.jp
PGP public key: http://www.sat.t.u-tokyo.ac.jp/~simokawa/pgp.html

















