#!/usr/bin/perl
#
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# $TAHI: ct/icmp.p2/To_Multi_Dst_Unreach_4.seq,v 1.5 2005/04/11 08:58:38 akisada Exp $
#----------------------------------------------------------------------
BEGIN { $V6evalTool::TestVersion = '$Name: V6LC_4_0_1 $'; }
use V6evalTool;
use icmp;
$IF = Link0;
%pktdesc = (
udp_pkt => 'Send UDP packet dst port = 9000 (Multicast address)',
dst_unreach => 'Receive Destination Unreachable (Port Unreachable)'
);
#----------------------------------------------------------------------
# Initialization
#----------------------------------------------------------------------
vLogHTML("Initialization
");
vCapture($IF);
$ret = setup();
if ($ret == $icmp::subFail){
goto error;
}
#----------------------------------------------------------------------
# Test
#----------------------------------------------------------------------
vLogHTML("Test
");
vSend($IF, udp_pkt);
#%ret = vRecv($IF, $icmp::wait_reply, 0, 0, dst_unreach);
%ret = icmp_vRecv($IF, $icmp::wait_reply, 0, 0, dst_unreach);
if ($ret{status} != 0) {
vLog("TN do not receive ICMPv6 error message from NUT");
vLog("OK");
cleanup();
vStop($IF);
exit($V6evalTool::exitPass);
}
elsif ($ret{recvFrame} eq 'dst_unreach') {
vLogHTML('TN receive ICMPv6 error message from NUT
');
goto error;
}
else {
vLogHTML('TN receive unexpected packets from NUT
');
goto error;
}
error:
vLogHTML('FAIL
');
cleanup();
vStop($IF);
exit($V6evalTool::exitFail);
#----------------------------------------------------------------------
__END__
=head1 NAME
To_Multi_Dst_Unreach_4.seq - check Message Processing Rules (ICMPv6
Destination Unreachable )
=head1 TARGET
Host/Router
=head1 SYNOPSIS
To_Multi_Dst_Unreach_4.seq [-tooloption ...] -p To_Multi_Dst_Unreach_4.def
=head1 INITIALIZATION
If the NUT is a host, send a Router Advertisment.
If the NUT is a router, configure a default route with TN as the next hop.
And make state of Neighbor Cashe Entry for TN's addresses reachable.
=head1 TEST PROCEDURE
This test verifies that the message processing rule,
An ICMPv6 error message MUST NOT be sent as a result of
receiving:
a packet destined to an IPv6 multicast address (there are
two exceptions to this rule: (1) the Packet Too Big
Message - Section 3.2 - to allow Path MTU discovery to
work for IPv6 multicast, and (2) the Parameter Problem
Message, Code 2 - Section 3.4 - reporting an unrecognized
IPv6 option that has the Option Type highest-order two
bits set to 10).
TN NUT
---------------------------
1.
=== UDP packet ===>
src address : TN link local address
dst address : all node multicast address
port number is not used in NUT
2.
<< JUDGEMENT >>
<=== No pakcet ===
or
<=== ICMPv6 Destination Unreachable ===
Code is 4
=head1 JUDGEMENT
<< PASS >>
NUT do not send ICMPv6 Destination Unreachable.
<< FAIL >>
NUT send ICMPv6 Destination Unreachable.
=cut
# =head1 REFERENCE
#
# RFC2463
# 2.4 Message Processing Rules
#
# Implementations MUST observe the following rules when processing
# ICMPv6 messages (from [RFC-1122]):
#
# =begin html
#
# (e) An ICMPv6 error message MUST NOT be sent as a result of
# receiving:
# (e.1) an ICMPv6 error message, or
# (e.2) a packet destined to an IPv6 multicast address (there are
# two exceptions to this rule: (1) the Packet Too Big
# Message - Section 3.2 - to allow Path MTU discovery to
# work for IPv6 multicast, and (2) the Parameter Problem
# Message, Code 2 - Section 3.4 - reporting an unrecognized
# IPv6 option that has the Option Type highest-order two
# bits set to 10), or
# (e.3) a packet sent as a link-layer multicast, (the exception
# from e.2 applies to this case too), or
# (e.4) a packet sent as a link-layer broadcast, (the exception
# from e.2 applies to this case too), or
# (e.5) a packet whose source address does not uniquely identify
# a single node -- e.g., the IPv6 Unspecified Address, an
# IPv6 multicast address, or an address known by the ICMP
# message sender to be an IPv6 anycast address.
#
#
# =end html
#
=pod
=head1 REFERENCE
=begin html
RFC 2463 - ICMPv6 (ICMP for IPv6)
=end html
=head1 SEE ALSO
perldoc V6evalTool
=cut