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Date: Tue, 14 Oct 2003 13:16:47 +0900
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Subject: [FreeBSD-net-jp 3993] LAN =?ISO-2022-JP?B?GyRCRmJJdCROJS8bKEI=?=
 =?ISO-2022-JP?B?GyRCJWklJCUiJXMlSCQrJGkbKEI=?= PING
 =?ISO-2022-JP?B?GyRCJCxETCRpJEokJBsoQg==?=
Sender: owner-FreeBSD-net-jp@jp.FreeBSD.org
X-Originator: gakugakuman@yahoo.co.jp
X-Distribute: distribute version 2.1 (Alpha) patchlevel 24e+031013

$B$I$J$?$+65$($F$/$@$5$$!#(B
LAN$BFbIt$N%/%i%$%"%s%H$+$i30B&$X$N(BPING$B$,DL$i$J$$$N$G(B
$BDL$k$h$&$K$7$?$$$G$9!#(B
$BIT2D2r$J$3$H$H$7$F$O%2!<%H%&%'%$C<Kv$+$i$N30It$X$N(B
PING$B$ODL$j$^$9$,!"%/%i%$%"%s%H$+$i30It$X$N(BPING$B$,(B
$BDL$i$J$$E@$G$9!#(BOS$B$O(BFreeBSD 4.7 Relese$B$G$9!#(B
$B$A$J$_$K%/%i%$%"%s%H(B(Host "A""C")$B$N(Bwindows$B%^%7!<%s$G(B
$B30B&$K$"$k%[!<%`%Z!<%8$N1\MwEy$OLdBj$J$/$G$-$^$9!#(B

$B!{%M%C%H%o!<%/9=@.(B
     Inter net
    _____|____
   |ADSL MODEM|
   |__________|
         |
  _______|tun0___ FreeBSD 4.7
 |    HOST "G"   |(Gateway,nameserver,
 |________rl0____|nat,samba,ipfw,apache)
         | 192.168.1.1
  _______|_______
 |      HUB      |
 |_______________|
    |    |    |   ____________________
    |    |    |__|Host "A" 192.168.1.3| win
    |    |        ____________________
    |    |_______|Host "B" 192.168.1.4| FreeBSD 4.7
    |             ____________________  (os only)
    |____________|Host "C" 192.168.1.5| win

$B8=>](B==========================================================================
  PING OK
    HOST "A" "B" "C" <-> HOST "A" "B" "C"
    HOST "A" "B" "C" <-> HOST "G"
    HOST "G" <-> Internet
  PING NG
    HOST "A" "B" "C" <-> Internet
    $BNc$($P(B
      Host "C" $B$+$i(BPING$B$r9T$C$?$H$-$NI=<(!#(B
       Pinging www.yahoo.co.jp [211.14.15.5] with 32 bytes
of data:
       Request timed out.
       Request timed out.
       Request timed out.
       Request timed out.
       Ping statistics for 211.14.15.5:
         Packets: Sent = 4, Received = 0, Lost = 4 (100%
loss),

$B@_Dj(B=========================================================================
  /etc/rc.conf
    gateway_enable="YES"

  HOST "G"$B$G(Bipfw list
    00100 allow log icmp from any to any

  HOST "G"$B$G(Bnetstat $BI=<(7k2L(B
  $B!J$3$N$H$-(BHOST
"A"$B$ON)$A$"$,$C$F$$$J$+$C$?$N$G(B192.168.1.3
$B$NI=<($O$"$j$^$;$s!#!K(B
    Routing tables
    Internet:
    Destination   Gateway           Flags Refs  Use Netif
Expire
    default       61.207.**.***     UGSc    2  755  tun0
    61.207.**.*** 219.160.**.***    UH      2    0  tun0
    127.0.0.1     127.0.0.1         UH      1   65   lo0
    192.168.1     link#2            UC      4    0   rl0
    192.168.1.1   00:0a:79:27:e0:38 UHLW    0   13   lo0
    192.168.1.4   00:09:41:1e:58:1f UHLW    1   47   rl0  
 714
    192.168.1.5   00:08:a1:1e:12:7e UHLW    4 2718   rl0  
 734
    192.168.1.255 ff:ff:ff:ff:ff:ff UHLWb   2   63   rl0

  HOST "G"$B$G(Bifconfig $BI=<(7k2L(B
  dc0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST>
mtu 1500
	inet6 fe80::203:6dff:fe19:aaca%dc0 prefixlen 64 scopeid
0x1 
	ether 00:03:6d:19:aa:ca
	media: Ethernet autoselect (100baseTX <full-duplex>)
	status: active
  rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST>
mtu 1500
	inet 192.168.1.1 netmask 0xffffff00 broadcast
192.168.1.255
	inet6 fe80::20a:79ff:fe27:e038%rl0 prefixlen 64 scopeid
0x2 
	ether 00:0a:79:27:e0:38
	media: Ethernet autoselect (10baseT/UTP)
	status: active
  lp0: flags=8810<POINTOPOINT,SIMPLEX,MULTICAST> mtu 1500
  lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
	inet6 ::1 prefixlen 128 
	inet6 fe80::1%lo0 prefixlen 64 scopeid 0x4 
	inet 127.0.0.1 netmask 0xff000000 
  ppp0: flags=8010<POINTOPOINT,MULTICAST> mtu 1500
  sl0: flags=c010<POINTOPOINT,LINK2,MULTICAST> mtu 552
  faith0: flags=8002<BROADCAST,MULTICAST> mtu 1500
  tun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu
1454
	inet 219.160.**.*** --> 61.207.**.*** netmask 0xffffffff 
	Opened by PID 55

$BD9$/$J$j$^$7$?$,$465<x$/$@$5$$$^$9$h$&$*4j$$$$$?$7$^$9!#(B


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