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From: Masao Shuutoh <shuutoh@icos.co.jp>
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Subject: [FreeBSD-users-jp 27544] ping disconnection.
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$B$O$8$a$^$7$F<~El$H?=$7$^$9!#(B
$BAaB.<ALd$J$N$G$9$,!"FbIt$+$i(B ping $B$,A4$/DL$i$J$$7o$K$D$$$F(B
$B$*;G$$$7$?$$$N$G$9$,!"$^$:$,%M%C%H%o!<%/9=@.35MW$G$9!#(B

OCN-->Router-->|-------|-----> $BFbIt%M%C%H%o!<%/(B(192.168.10.0/24)
                         | Server|
                        |-------|

Router<-->Server $B4V%M%C%H%o!<%/(B(xxx.yyy.zzz.128/29)

OCN $B$h$j(B 128k $B$N@lMQ@~$r0z$-!"%k!<%?!<$h$j(B FreeBSD(2.2.2-Release)$B$,(B
$B%$%s%9%H!<%k$5$l$F$$$k%^%7%s$K(B NIC $B$rFsKg:9$7$D$J$2$F$$$^$9!#(B
$B$^$?!"(BFireWall $B$H$7$F(B ipfw $B$r;H$C$F@_Dj$r9T$C$F$*$j$^$9!#(B
ipfw list $B$N7k2L$G$9!#(B

01000 allow ip from 127.0.0.1 to 127.0.0.1
01100 allow tcp from any to any established
01200 allow icmp from any to any
01300 allow ip from any to any in via ed0
01400 allow ip from 192.168.10.0/24 to 192.168.10.0/24
01500 allow udp from any to 192.168.10.0/24 53
01600 allow udp from any to xxx.yyy.zzz.128/29 53
01700 allow udp from 192.168.10.0/24 to any 53
01800 allow udp from xxx.yyy.zzz.128/29 to any 53
01900 allow tcp from 192.168.10.0/24 to any 80 setup
02000 allow tcp from xxx.yyy.zzz.128/29 to any 80 setup
02200 allow tcp from 192.168.10.0/24 to any 20,21 setup
02300 allow tcp from xxx.yyy.zzz.128/29 to any 20,21 setup
02500 allow tcp from any to any 113
02600 allow udp from any to any 1525
02700 allow udp from any 1525 to any
02800 allow udp from any 123 to xxx.yyy.zzz.130
02900 allow udp from any 123 to 192.168.10.1
03000 allow udp from xxx.yyy.zzz.130 to any 123
03100 allow tcp from any to any 25 setup
03200 allow tcp from any to xxx.yyy.zzz.130 110 setup
03300 allow tcp from xxx.yyy.zzz.130 to any 110
65535 deny ip from any to any

$B$3$N%^%7%s$N;HMQL\E*$OB?:L$G$9$,(B DNS$B!"(BMail(SMTP$B!"(BPOP3)$B!"(BDHCP$B!"(B
Proxy $B$G$9!#(B
$B$3$N%5!<%P!<$N(B NIC $B$KBP$7$F$O0J2<$N$h$&$K(B IP $B$r@_Dj$7$F$*$j$^$9!#(B
OCN$BB&(B $B!'(Bxxx.yyy.zzz.130/29
$BFbItB&!'(B192.168.10.1/24

$B>e5-$N$h$&$J>uBV$K$J$C$F$*$j$^$9!#(B
$B$=$3$G!"FbIt%M%C%H%o!<%/$N(B PC (ip:192.168.10.45/24 $B$H$7$F(B) $B$+$i(B
ping $B$r$+$1$F$_$k$H0J2<$N$h$&$J7k2L$K$J$j$^$9!#(B
1,192.168.10.1      $B!&!&!&(B OK
2,xxx.yyy.zzz.130   $B!&!&!&(B OK
3,xxx.yyy.zzz.129   $B!&!&!&(B NG ($B$3$N%"%I%l%9$O%k!<%?!<$G$9!#(B)
4,207.227.113.57($BNc(B)$B!&!&!&(B NG ($B30It$KBP$9$k%"%I%l%9$G$9!#(B)

ping $B$r;HMQ$7$F$$$k%/%i%$%"%s%H<RFb(B PC $B$K$O(B Windows95 $B$r;HMQ$7$F(B
$B$*$j$^$9!#(B
$B$^$?!"(BTELNET $B$r;H$C$F%/%i%$%"%s%H$+$i%5!<%P!<$KF~$j!"(Bping $B$r$+$1$k$H(B
$B0J2<$NDL$j$K$J$j$^$9!#(B
1,192.168.10.45     $B!&!&!&(B OK
2,xxx.yyy.zzz.130   $B!&!&!&(B OK
3,xxx.yyy.zzz.129   $B!&!&!&(B OK
4,207.227.113.57($BNc(B)$B!&!&!&(B OK

$B$*$=$i$/%5!<%P!<$N@_Dj$N2?$+$,$*$+$7$$$N$G$O$J$$$+$H;W$$<+J,$J$j$K(B
$B0lDL$jD4$Y$F$_$?$N$G$9$,!"860x$,$D$+$a$^$;$s$G$7$?!#(B

$B$A$J$_$K(B
SMTP :SendMail 8.8.8
POP3 :qpopper 2.3
DHCP :1.3beta
Proxy:Delegate 4.1.6
Samba:1.9.17p4
DNS  :$BI8=`$G$D$$$F$$$k$b$N$r;HMQ(B
...$B$G$9!#(B

$B!V$3$&$9$l$PFbIt$+$i(B ping $B$,DL$k!W$H$$$&@_Dj$NJQ99$J$I$,$"$j$^$7$?$i(B
$B65$($F$$$?$@$-$?$$$N$G$9$,!"59$7$/$*4j$$$$$?$7$^$9!#(B
$B$^$?!"B-$j$J$$I,MW$J>pJs$,$"$j$^$7$?$i65$($F$/$@$5$$!#(B

$B0J>e$G$9!#(B
