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(usagi-users 02235) question for ping6

Hello, Nice to meet you.

 I have a question about ping6 on RedHat Linux 7.3
(Kernel 2.4.18-24.7.x, with USAGI STABLE Release 4.1[2003/2/14]).

 This test is ping6 to RTA55i from linux. This Test's environment
is the following figures. [ *** ; Interface ID ]

  +-------+     +-----+     +-------------+
  | linux |-----| HUB |-----|    RTA55i   |     +------------+
  +-------+     +-----+     | (IPv6/IPv4) |-----| ADSL Modem |--->
fe80::290:***/64   |        +-------------+     +------------+
                   |        fe80::2a0:***/64
                   |                          +---------+
                   +--------------------------| Sniffer |
                                              +---------+
                                          192.168.100.100/24

 The problem message is 'Ping:recvmsg:No route to host',
and Sniffer's result is 'ICMPv6 Echo Reply Message Code=0'.

 Why does this message appear though the ping6 has succeeded ?

----------------------------
Susumu Murase
murase@xxxxxxxxxxxxxx
NTT Electronics Corporation
http://www.nel-world.com/