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From: Issei Suzuki <issei@issei.org>
Date: Mon, 01 Mar 1999 17:26:34 +0900
To: FreeBSD-users-jp@jp.freebsd.org
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Subject: [FreeBSD-users-jp 39366] Re: =?ISO-2022-JP?B?GyRCMzBJdBsoQg==?=
 =?ISO-2022-JP?B?GyRCJWEhPCVrJTUhPCVQJFgkTiUiJS8lOyU5JCwbKEI=?=
 =?ISO-2022-JP?B?GyRCMFs+byRLGyhK?=
 =?ISO-2022-JP?B?GyRCQ1kkJBsoQg==?= 
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$BNkLZ0l@8$G$9!#(B

In message "[FreeBSD-users-jp 39365] $B30It%a!<%k%5!<%P$X$N%"%/%;%9$,0[>o(B
$B$KCY$$(B",
$BLx(B wrote...

> PC$B$+$i30It$N%a!<%k%5!<%P(B(POP, SMTP)$B$K%a!<%kAw<u?.$7$?$H$-(B
> tcpdump $B$G%0%m!<%P%k%"%I%l%9B&$N(Bdump$B$r$_$k$H!"(B
> $B<!$N$h$&$KESCf$G(Bicmp$B$,(Budp port domain unreachable$B$K$J$C$F$$$^$9!#(B
> $B$3$l$,860x$G$O$J$$$+$H;W$&$N$G$9$,!"0UL#!&BP=hJ}K!$,$o$+$j$^$;$s!#(B
> 
> ns-jp.sinet.ad.jp.64740 > aaa.xxx.co.jp.domain: 44333 (50) (DF)

$B!!(Bns-jp.sinet.ad.jp $B$O(B aaa.xxx.co.jp $B$G(B DNS $B%5!<%P$,5/F0$7$F$$$k$H;W$C$F(B
$B$$$F!"(B aaa.xxx.co.jp $B$N(B DNS $B%5!<%P08$F(B (udp domain) $B$K%/%(%j!<$rAw$C$F$-(B
$B$F$^$9$M!#(B

> aaa.xxx.co.jp > ns-jp.sinet.ad.jp:
>             icmp: aaa.xxx.co.jp udp port domain unreachable (DF)

$B!!$,<B:]$K$O(B aaa.xxx.co.jp $B$G$O(B DNS $B%5!<%P$,F0$$$F$$$J$$$N$G!"%?%$%`%"%&(B
$B%H$K$J$C$F$7$^$&!"$H!#(B

> $B2?8N$J$N$+LdBj$N@Z$jJ,$1$,$G$-$:$K:$$C$F$$$^$9!#(B

$B!!(BDNS $B%5!<%P$N%>!<%s%U%!%$%k$,$*$+$7$$!"$K0lI<!#%>!<%s%U%!%$%k$N(B NS $B%l(B
$B%3!<%I$K(B aaa.xxx.co.jp $B$H=q$$$F$"$k(B DNS $B%5!<%P$,$"$j$^$;$s$+!)(B

-- 
Issei Suzuki <issei@issei.org>
