From owner-FreeBSD-net-jp@jp.freebsd.org  Mon Mar 30 18:56:31 1998
Received: by jaz.jp.freebsd.org (8.8.8+3.0Wbeta7/8.7.3) id SAA03875
	Mon, 30 Mar 1998 18:56:31 +0900 (JST)
Received: by jaz.jp.freebsd.org (8.8.8+3.0Wbeta7/8.7.3) with ESMTP id SAA03866
	for <FreeBSD-net-jp@jp.freebsd.org>; Mon, 30 Mar 1998 18:56:26 +0900 (JST)
Received: from smicec-smtp.smicec.co.jp (smicec-smtp [172.20.48.128]) by smicecgw1.smicec.co.jp (8.8.5/3.5Wpl7-smicecgw1-970804) with ESMTP id SAA05794 for <FreeBSD-net-jp@jp.freebsd.org>; Mon, 30 Mar 1998 18:57:37 +0900 (JST)
Received: from [172.20.49.164] ([172.20.49.164]) by smicec-smtp.smicec.co.jp (8.8.5/3.5Wpl7-smicec-smtp-971026) with SMTP id TAA24736 for <FreeBSD-net-jp@jp.freebsd.org>; Mon, 30 Mar 1998 19:00:43 +0900 (JST)
Message-Id: <199803301000.TAA24736@smicec-smtp.smicec.co.jp>
X-Mailer:  Macintosh Eudora Pro Version 3.0.2Jr2
Mime-Version: 1.0
Content-Type: text/plain; charset="ISO-2022-JP"
Content-Transfer-Encoding: 7bit
Date: Mon, 30 Mar 1998 18:59:54 +0900
To: FreeBSD-net-jp@jp.freebsd.org
From: Bunpei Matoba <bm@pt.smicec.co.jp>
Reply-To: FreeBSD-net-jp@jp.freebsd.org
Precedence: list
X-Distribute: distribute [version 2.1 (Alpha) patchlevel=24]
X-Sequence: FreeBSD-net-jp 529
Subject: [FreeBSD-net-jp 529] Capturing ethernet input error packets
Errors-To: owner-FreeBSD-net-jp@jp.freebsd.org
Sender: owner-FreeBSD-net-jp@jp.freebsd.org

$B=;6b@)8f$NE*>l$G$9!%(J

$BCN$j9g$$$N$H$3$m$N%$!<%5%M%C%H(JLAN$B$G8E$/$+$i$N(J
$B%$%(%m!<%1!<%V%k$N%;%0%a%s%H$K%(%i!<%Q%1%C%H$,(J
$BH/@8$7!$$=$N860x$,$D$-$H$a$i$l$:$K:$$C$F$*$j$^$9!%(J

$B8=:_$=$N%;%0%a%s%H$K(JFreeBSD$B$N%^%7%s$O$"$j$^$;$s$,!$(J
$BFCJL$K;}$A9~$s$G%b%K%?!<%^%7%s$H$7$?>l9g!$(J
$B$=$N%(%i!<<oJL$rFCDj$G$-$F!$$R$$$F$O860x2rL@$K$D$J(J
$B$2$i$l$k$+$r8!F$$7$F$*$j$^$9!%(J

$B$=$3$G!$(JFreeBSD$B$K$D$$$F$N$D$.$N=iJbE*$J<ALd$KEz$($F$$$?$@$1(J
$B$^$9$HBg=u$+$j$G$9!%(J

1. $B%$!<%5%M%C%H$N%I%i%$%P$,F~NO;~$K%(%i!<$r8!=P$7$?>l9g!$(J
$B!!$=$N%I%i%$%P!<%=%U%H$K0MB8$9$k$H$O;W$$$^$9$,!$(J
$B!!2?$i$+$NDLCN$r$7$F$/$l$k$H;W$$$^$9!%(J

$B!!Nc$($P!$(Jde$B$N>l9g!$(J
  "frame too long"
  "alignment error"
  "bad crc"
$B!!$N%(%i!<$r%3%s%=!<%k$K=PNO$7$F$/$l$^$9!%(J

$B!!$3$l$r!$8D!9$N%(%i!<FbMFKh$K(Jnetstat -i$B$N(JIerrs$B9`L\$N$h$&$K(J
$B!!@Q;;CM$H$7$F=87W$7$F8+$;$F$/$l$k0lHLE*$J$7$+$1$,(JOS
$B!!$N5!G=$H$7$FHw$o$C$F$$$k$G$7$g$&$+!)(J

2. 1.$B$G%(%i!<$r8!=P$9$k$N$O!$<+J,08$N%f%K%-%c%9%H%Q%1%C%H$+(J
$B!!Hs%f%K%-%c%9%H%Q%1%C%H!J%^%k%A%-%c%9%H!&%V%m!<%I%-%c%9%H!K(J
$B!!$r<u?.$7$?>l9g$@$HM}2r$7$F$*$j$^$9!%(J
$B!!$G$O!$$=$N%;%0%a%s%H$KN.$l$F$$$k%(%i!<$r$9$Y$FCN$j$?$$>l9g!$(J
$B!!(Jbpf$B$H(Jtcpdump$B$r;H$&$H$=$l$,8!=P$G$-$k$G$7$g$&$+!)(J
$B!!!J(Jbpf$B$G$O!$$?$H$(%$!<%5%M%C%H$N%I%i%$%P!<$,(Jprimicios$B%b!<%I$K(J
$B!!!!$J$C$F$b!$%I%i%$%P!<$H6(D4$7$F%(%i!<%Q%1%C%H$^$G=&$&(J
$B!!!!$3$H$O$G$-$J$$!$$7$?$,$C$F!$(Jtcpdump$B$G$b%(%i!<%Q%1%C%H(J
$B!!!!$r%@%s%W$9$k$3$H$O$G$-$J$$$H?dB,$7$F$$$k$N$G$9$,!K(J

3. FreeBSD$B%Y!<%9$GF0$/!$FCJL$J%I%i%$!<%P!<%=%U%H$d(JOS$B%Q%C%A$r(J
$B!!;H$C$?$b$N$G!$$=$N%;%0%a%s%H$KN.$l$F$$$k%(%i!<%Q%1%C%H$^$G(J
$B!!%-%c%W%A%c!<$7$F!$CGJRE*$JFbMF$,$o$+$k$J$i$P(J
$B!!$=$l$^$GI=<($7$/$l$k$h$&$J%"%J%i%$%6!<E*$J%"%W%j%1!<%7%g%s(J
$B!!%=%U%H$,$"$k$G$7$g$&$+!)(J

$B!!!V(JFreeBSD$B$G$O$@$a$@$1$I;THN$N@lMQ$N%"%J%i%$%6!<5!4o$J$i(J
$B!!$=$l$O2DG=$@$h!W$H$$$&$3$H$G$7$?$i!$$=$A$i$N6qBNE*$J(J
$B!!>&IJL>$r65$($F$$$?$@$1$k$H9,$$$G$9!%(J

4. $B$3$l$O!$(JFreeBSD$B$H4X78$J$$<ALd$J$N$G$9$,!$$D$$$G$K!$(J
$B!!$3$s$JIw$J%H%i%V%k$N>l9g$K$O!$$3$s$J%(%i!<%Q%1%C%H$,(J
$B!!$G$k$h$H$$$&>pJs$b$$$?$@$1$k$H@?$K$"$j$,$?$$$G$9!%(J

$B$h$m$7$/$*4j$$$$$?$7$^$9!%(J

--
Bunpei Matoba
Computer System Division
Sumitomo Metal Industries Control & Engineering Corp.
Amagasaki Japan
Phone: +81-6-418-4707    fax. +81-6-418-4764
Nifty-Serve: JAE00767   CompuServe: 72300,3551
http://www.nerimadors.or.jp/~bunpei/index.html


