From owner-FreeBSD-users-jp@jp.FreeBSD.org Fri Apr 19 19:46:40 2002
Received: (from daemon@localhost)
	by castle.jp.FreeBSD.org (8.11.6+3.4W/8.11.3) id g3JAke002878;
	Fri, 19 Apr 2002 19:46:40 +0900 (JST)
	(envelope-from owner-FreeBSD-users-jp@jp.FreeBSD.org)
Received: from r-dd.iij4u.or.jp (r-dd.iij4u.or.jp [210.130.0.70])
	by castle.jp.FreeBSD.org (8.11.6+3.4W/8.11.3) with ESMTP/inet id g3JAke402873
	for <FreeBSD-users-jp@jp.FreeBSD.org>; Fri, 19 Apr 2002 19:46:40 +0900 (JST)
	(envelope-from ta.nakamura@crs.co.jp)
Received: from CRCC1565 (pl683.nas921.n-yokohama.nttpc.ne.jp [210.165.112.171])
	by r-dd.iij4u.or.jp (8.11.6+IIJ/8.11.6) with SMTP id g3JAkdR21388;
	Fri, 19 Apr 2002 19:46:39 +0900 (JST)
Date: Fri, 19 Apr 2002 19:46:04 +0900
From: NAKAMURA Takeshi <ta.nakamura@crs.co.jp>
To: FreeBSD-users-jp@jp.FreeBSD.org
In-Reply-To: <200204190733.g3J7XVI71563@aerith.cks.canon.co.jp>
References: <20020419093113.D487.1YEN@Bigfoot.COM> <200204190733.g3J7XVI71563@aerith.cks.canon.co.jp>
Message-Id: <20020419174006.D4A4.TA.NAKAMURA@crs.co.jp>
MIME-Version: 1.0
Content-Type: text/plain; charset="ISO-2022-JP"
Content-Transfer-Encoding: 7bit
X-Mailer: Becky! ver. 2.00.08
Reply-To: FreeBSD-users-jp@jp.FreeBSD.org
Precedence: list
X-Distribute: distribute version 2.1 (Alpha) patchlevel 24e+020417
X-Sequence: FreeBSD-users-jp 68138
Subject: [FreeBSD-users-jp 68138] Re: Onbord ISA NIC(3Com 3C509)
 =?ISO-2022-JP?B?GyRCJE5AX0RqGyhC?=
Errors-To: owner-FreeBSD-users-jp@jp.FreeBSD.org
Sender: owner-FreeBSD-users-jp@jp.FreeBSD.org
X-Originator: ta.nakamura@crs.co.jp

$BCgB<$G$9(B

From:    "K.[NAO-NAO].Kawai" <kawai.kenichi@canon.co.jp>
Date:    Fri, 19 Apr 2002 16:33:31 +0900
Subject: [FreeBSD-users-jp 68137] Re: Onbord ISA NIC(3Com 3C509) $B$N@_Dj(B

$B$J(B> FreeBSD ==> DNS $B$X(B DNS query$B$NH/9T$7$^$9$,(B etherreal $B$G8+$k$H(B
$B$J(B>User Datagram Protocol, Src Port:49503(49503), Dst Port: domain (53) $B$NCf$K(B
$B$J(B>   Checksum: 0x0982 (incorrect, shuld be 0x0882)
$B$J(B> $B$H!"I=<($5$l$^$9!#(B
$B$J(B> $B$3$NLd$$9g$o$;$r(B FreeBSD$B<+?H$H(B NFS$B%5!<%P$G(B tcpdump $B$7$?J*$r(B etherreal $B$K(B
$B$J(B>$B?)$o$;$F$_$?$H$3$m(B $BN>J}$H$b(B $B%?%$%`%9%?%s%W$,0c$&$@$1$GF1$8$h$&$K2u$l$F$$$^$7$?!#(B
$B$J(B> ($B$3$N(B2$B$D$O(B dumb HUB$B$r2p$7$F7R$,$C$F$$$^$9(B)

$B$+(B> 1bit $B$@$1$A$,$&$H$$$&$N$,!"2?$+$r0E<($7$F$$$k$h$&$J5$$b$7$^$9$,!"(B
$B$+(B> $B!t(Bnetmask $B$H$+!"(Bbroadcast address $B$J$I$NG'<1$,JQ$H$+!"!%!%!%(B
$B$+(B> UDP pseudo header $B$K$O!"(Bsrc/dst IP$B!"(Bprotocol$B!"(Blength $B$7$+$J$$$s$G$9$1$I$M$'!#(B

 $B99$K;n$7$F$_$^$7$?(B ($BLLE]$J$N$G(B tcpdump $B$O<h$C$F$^$;$s(B)
port $BHV9fJQ99(B
  telnet 192.168.30.202 55 $B$G$b!"1~EzL5$7!#(B

IP$B%"%I%l%9(B $BJQ99(B
 1. dst IP $BJQ99(B
  $B$?$^$?$^5/F0$7$F$$$?(B 192.168.31.202 $B$X(B
  telnet 192.168.31.202 55 $B$9$k$H1~EzL5$7!#(B(telnet 192.168.30.202 53$B$HF1$8>uBV(B)
  NFS$B%5!<%P$+$i(B $B$d$k$H(B Connection Refused.
  port $BHV9f$K$O4X78$J$/!"(Bdst IP $B$K0MB8$9$k2?$+$,0-$$$N$+!)$H!"<~$j$N%^%7%s$N(B
  55$BHV%]!<%H$rC!$-$^$/$k(B(^^;tcp $B$@$1$I(B
  $B!&(BConnection Refused $B$H$J$k(B $B@5>o$J(BIP
     192.168.31.1, 5, 6, 20, 28
     192.168.30.11, 12, 110
  $B!&L5H?1~$J(BIP(NFS$B$G$O(B Connection Refused)
     192.168.30.120, 140, 160, 201, 202, 205, 210, 211, 212
 2$B?J?t$KJQ49$7$F$_$k$H2?$+$o$+$k$N$+$J$!!#(B

 2. src IP$B$bJQ99(B
  FreeBSD 192.168.100.31 ==> NFS$B%5!<%P(B 192.168.100.30:55
  FreeBSD 192.168.100.31 ==> NFS$B%5!<%P(B 192.168.100.202:55
  $BN>J}$H$b(B Connection Refused.($B@5>o(B)

port$BHV9f$K4X78$J$/(B src IP $B$H!"(Bdst IP $BN>J}$K0MB8$9$k2?$+$,0-$$!)(B
$B?&>l$N%^%7%s$J$N$G!"$3$l0J>e$NDI5a$OMh=5(B...

$B0J2<!"4JC1$J9=@.(B
Switching HUB --- Router ----- DNS$B%5!<%P(B(192.168.30.202/24)
 |
HUB------------------------+
 |                         |
192.168.31.142/24   192.168.31.105/24
FreeBSD             NFS Server(Solaris 8)
192.168.100.31/24   192.168.100.30/24
      |                      |
      +--------HUB-----------+
FreeBSD    ep0   192.168.31.142
                 192.168.100.31 alias
NFS$B%5!<%P(B hme0   192.168.31.105
          hme0:1 192.168.100.30
$B$H!"(B2$B$D$N%^%7%s(B $B$H$b$K(B 1$B$D$N(BNIC$B$K(B alias $B$r?6$C$F$$$^$9!#(B

> DNS server $B$r(B udp cksum $B$rL5;k$K@_Dj!"$J$s$F$N$O<YF;$@$h$M!#(B
 $B$5$9$,$K4IM}8"8B;}$C$F$^$;$s$N$G!"?I$$$G$9!#(B
 $B$=$N@_Dj$r$7$F%Z%sB@(B100 $B$J%^%7%s$r(B DNS$B%-%c%7%e$H$7$F$@$1F0$+$7$F$_$h$&$+$J!#(B
1FD$B$GF0$-$^$9$h$M!)(B $BJY6/$;$M$P(B

> http://home.jp.FreeBSD.ORG/cgi-bin/showmail/FreeBSD-users-jp/66792
> $B$N$h$&$K(B ifconfig $B$G$-$J$$!)(B
> $B!t(BISA interface $B$N(B NIC $B$G<+F07W;;$J$s$FBP1~$7$F$J$$$+!)(B
 $B$"$C$?$i>!<j$KG'<1$7$F$/$l$=$&$J$N$GL5$$$H;W$$$^$9!#$?$V$s!#A[A|$9$k$K(B...

----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+
 $B4X@>2-Fl@DG/$N=8$$(B $B$,$8$^$k$N2q(B $B<jEA$$(B $B0l?M$@$1$N>!<j$K?@F`@n;YIt(B
 $BCgB<(B $BIp(B <1Yen@Bigfoot.COM>
