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To: ipv6-jp@jp.FreeBSD.ORG
From: Hiroyuki HANAI <hanai@imgsrc.co.jp>
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Date: Fri, 14 Jan 2000 22:11:52 +0900
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Subject: [IPv6-jp 493] losing connectivity
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$B2V0f$G$d$s$9!#(B

NTT.com $B$N(B IPv6 $B$J<B83$K;22C$7$F$^$7$F!"0l:rF|$/$i$$$+$i$J$s$H(B
$B$J$/%4%K%g%4%K%g$HM7$s$G$k$s$G$9$1$I!":#F|$NM<J}$J$s$H$J$/5$$,(B
$BIU$$$?$i30$K=P$F9T$1$J$/$J$C$F$^$7$?!#:rF|$O(B

v6:-( traceroute6 www.jp.freebsd.org
traceroute to www.jp.freebsd.org (3ffe:505:2008:1:2a0:24ff:fe57:e561), 30 hops max, 12 byte packets
 1  2001:218:0:1000:2c0:4fff:fe15:f43c  16.204 ms  17.927 ms  14.726 ms
 2  2001:218:0:1000:2c0:4fff:fe15:f549  22.67 ms  15.917 ms  24.151 ms
 3  3ffe:1801:0:1:2a0:c9ff:fec8:cd38  15.192 ms  15.592 ms  16.624 ms
 4  pc6.otemachi.wide.ad.jp  17.006 ms  15.661 ms  17.029 ms
 5  casper.imasy.or.jp  90.709 ms  54.75 ms  59.293 ms
 6  tortoise.jp.freebsd.org  108.477 ms  111.622 ms  109.304 ms
v6:-( 

$B$H$$$&46$8$G30$K9T$1$F$^$7$?!#(B
# $B$&$A$,$b$i$C$?%"%I%l%9$O(B 2001:218:422::/48

$BJQ$($?$H$3$m$H$$$($P!":rF|$O(B IPv6 $B$J(B gateway $B$,(B 10 $B7n$/$i$$$N(B
KAME/NetBSD 1.4.1 $B$@$C$?$N$r:#F|$O(B 19991213 $B$J(B KAME/NetBSD 1.4.1
$B$K$7$?$3$H$/$i$$$G$9!#(B

$B$&$A$NCf(B(LAN)$B$G$O$=$l$J$j$KD4;RNI$/F0$$$F$k$7!"%+!<%M%k$d%D!<%k$r:r(B
$BF|$HF1$8$b$N$KLa$7$F$b$d$C$Q$jBLL\$J$N$G!"(BNTT $BB&$N%H%s%M%k$J@_Dj$,(B
$B$*$+$7$/$J$C$?$N$+$b!"$H$$$&5$$,$7$F$k$N$G$9$,!"%$%^%$%A<+?.$,$J$+$C(B
$B$?$j$7$^$9!#(B

$B%H%s%M%k$r@_Dj$7$?8e!"(Bping6 -I gif0 ff02::9 $B$H$+$d$k$H!"(B

v6:-( ping6 -I gif0 ff02::9
PING6(56=40+8+8 bytes) fe80::210:4bff:fe11:b318 --> ff02::9
16 bytes from fe80::210:4bff:fe11:b318@lo0, icmp_seq=0 hlim=64 time=0.46 ms
16 bytes from fe80::2c0:4fff:fe15:f43c@gif0, icmp_seq=0 hlim=64 time=19.667 ms(DUP!)
16 bytes from fe80::210:4bff:fe11:b318@lo0, icmp_seq=1 hlim=64 time=0.38 ms
16 bytes from fe80::2c0:4fff:fe15:f43c@gif0, icmp_seq=1 hlim=64 time=15.408 ms(DUP!)
$B!D!D(B

$B$_$?$$$J46$8$G8~$3$&B&$N%k!<%?!<$i$7$-$b$N$,1~$($F$/$l$k$?$j$9$k(B
$B$3$H$b;d$+$i<+?.$rC%$C$F$/$l$^$9!#(B

$B$"$H!":rF|$I$&$@$C$?$+CN$i$J$$$N$G$9$,!":#$O(B

bash-2.03# tcpdump -ni gif0 ip6
tcpdump: WARNING: SIOCGIFADDR: gif0: Can't assign requested address
tcpdump: listening on gif0
$B!D!D(B

$B$H$+$C$FJ86g8@$o$l$F$7$^$$$^$9$1$I!"$3$l$b$^$!$3$s$J$b$s$J$N(B
$B$+$J$!!"$H;W$C$?$j!#(B

$B$H$$$&$o$1$G!"$H$F$b$^$L$1$J$3$H$rJ9$$$F$$$k$h$&$J5$$,$7$J$/$b(B
$B$J$$$N$G$9$,!"$J$K$+%"%I%P%$%9$r$$$?$@$1$k$H4r$7$$$G$9!#(B

h.hanai% IMG SRC, Inc.
