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Date: Wed, 05 Dec 2001 23:14:21 +0900 (JST)
Message-Id: <20011205.231421.74752105.moriko@mizuki.noe.mcu.or.jp>
To: FreeBSD-net-jp@jp.freebsd.org
From: MORI Kouji <moriko@hh.iij4u.or.jp>
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Subject: [FreeBSD-net-jp 3480] PPPoE =?ISO-2022-JP?B?GyRCJEdGQxsoQg==?=
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$B?9$G$9!#(B

IIJmio + Flet's ADSL $B$r(B FreeBSD 4.4R $B$r(B PPPoE + NAT $B%k!<%?$H$7$F@\B3$7$F(B
$B$$$k$N$G$9$,!"(Bwww.netbsd.org $B$H$+$N0lIt$N%5%$%H$K%"%/%;%9$G$-$J$$$3$H$K(B
$B5$$,$D$-$^$7$?!#(Bping $B$H$+$ODL$j$^$9!#(B

$B$=$N>uBV$G$b(B NAT $B7PM3$N(B Windows client $B$O@\B3$G$-$k$h$&$G$9!#(B

  Windows 2000 $B!{(B
  FreeBSD 4.4  $B!_(B
  NetBSD 1.5Y  $B!_(B

tcpdump $B$N=PNO7k2L$rD/$a$F$_$F(B mss $B$N%5%$%:$d(B fragment $B$,4X78$7$F$=$&$@(B
$B$H$$$&$H$3$m$^$G$O$o$+$j$^$7$?!#(B

$B7k6I%/%i%$%"%s%HB&$N(B sysctl -w net.inet.tcp.rfc1323=0 $B$H$7$F(B(NetBSD $B$N(B
$B%a!<%j%s%0%j%9%H$G8+$^$7$?(B)$BDL?.$G$-$k$h$&$K$J$j$^$7$?!#(BRFC1323 $B$K$D$$$F$O(B
$B$^$@K\$rFI$s$G$k$H$3$m$J$N$G$"$^$jM}2r$7$F$^$;$s!#(B(^^;

$B0-$$$N$OC/$+$r2r@b$7$F$/$l$k?M$,$$$?$i4r$7$$$G$9!#(B
$BBLL\$J;~$N(B tcpdump $B$N7k2L$r:\$;$^$9!#(B

23:05:48.238216 192.168.0.251.65469 > 204.152.186.171.80: S 2553767082:2553767082(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 0 0>
23:05:48.396774 204.152.186.171.80 > 192.168.0.251.65469: S 980520209:980520209(0) ack 2553767083 win 32768 <mss 1414,nop,wscale 0,nop,nop,timestamp 2025020 0>
23:05:48.397391 192.168.0.251.65469 > 204.152.186.171.80: . ack 1 win 17520 <nop,nop,timestamp 1 2025020>
23:05:48.398432 192.168.0.251.65469 > 204.152.186.171.80: P 1:206(205) ack 1 win 17520 <nop,nop,timestamp 1 2025020>
23:05:48.573644 204.152.186.171 > 192.168.0.251: (frag 30265:1422@24)
23:05:48.584409 204.152.186.171 > 192.168.0.251: (frag 30266:1422@24)
23:05:48.595278 204.152.186.171 > 192.168.0.251: (frag 30267:1422@24)
23:05:48.606060 204.152.186.171 > 192.168.0.251: (frag 30268:1422@24)
23:05:49.888681 192.168.0.251.65469 > 204.152.186.171.80: P 1:206(205) ack 1 win 17520 <nop,nop,timestamp 4 2025020>
23:05:49.943436 204.152.186.171 > 192.168.0.251: (frag 30287:1422@24)
23:05:50.049123 204.152.186.171.80 > 192.168.0.251.65469: . ack 206 win 33580 <nop,nop,timestamp 2025024 1>
23:05:52.943537 204.152.186.171 > 192.168.0.251: (frag 30313:1422@24)
23:05:58.943602 204.152.186.171 > 192.168.0.251: (frag 30343:1422@24)

-- 
$B?9(B $B9@Fs(B	(MORI Kouji)
E-mail: moriko@hh.iij4u.or.jp
