#!/usr/bin/perl
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# $TAHI: ct/icmp.p2/To_ICMPErr_Dst_Unreach_0.seq,v 1.6 2005/04/11 08:58:38 akisada Exp $
#
#----------------------------------------------------------------------

BEGIN {
	$V6evalTool::TestVersion = '$Name: V6LC_P2_1_4_6 $';
}

use V6evalTool;
use icmp;

checkNUT(router);

%pktdesc = (
    echo_request	=> 'Send Echo Request',
    echo_reply		=> 'Receive Echo Reply',
    dst_unreach		=> 'Send Destination Unreachable',
    dst_unreach_from_nut	=> 'Receive ICMP Error (Destination Unreachable)',
);

$IF = Link0;

#----------------------------------------------------------------------
# Initialization
#----------------------------------------------------------------------
vLogHTML("<FONT SIZE=\"+1\">Initialization</FONT><BR>");

vCapture($IF);
	
$ret = setup();
if ($ret == $icmp::subFail){
	goto error;
}

#----------------------------------------------------------------------
# Test
#----------------------------------------------------------------------

vClear($IF);
vLogHTML('<FONR SIZE=+1>TEST</FONT>');

%ret = vSend($IF, dst_unreach);

#%ret = vRecv($IF, 5, $ret{sentTime}, 0, ns, parameter_problem);
%ret = icmp_vRecv($IF, $icmp::wait_reply, $ret{sentTime}, 0, 'dst_unreach_from_nut');

if ($ret{status} != 0) {
	vLogHTML('OK');	
	cleanup();
	vStop($IF);
	exit($V6evalTool::exitPass);
}
elsif ($ret{recvFrame} eq 'dst_unreach_from_nut') {
	vLogHTML('<FONT COLOR="#FF0000">NG</FONT>');
	cleanup();
	vStop($IF);
	exit($V6evalTool::exitWarn);
};

error:

vLogHTML('<FONT COLOR="#FF0000">FAIL</FONT><BR>');
cleanup();
vStop($IF);
exit($V6evalTool::exitFail);

########################################################################
__END__

=head1 NAME

	To_ICMPErr_Dst_Unreach_3.seq - check Message Processing Rules
	(ICMPv6 Destination Unreachable)

=head1 TARGET

	Host/Router

=head1 SYNOPSIS

	To_ICMPErr_Dst_Unreach.seq [-tooloptions ...] -p To_ICMPErr_Dst_Unreach.def

=head1 NETWORK CONFIGURATION

	This test is On-Link Network Configuration test.

	Physical/Logical Network Configuration

	---------------------------------------
		|               |
                NUT             TN

=head1 INITIALIZATION

	Perform Common Test Setup 1.1.
	Make a Neighbor Cache Entry for TN's in NUT.

=head1 TEST PROCEDURE

	This test verifies that the message processing rule,

	An ICMPv6 error message MUST NOT be sent as a result of
	receiving an ICMPv6 error message.

	TN			NUT

	---------------------------

	1.
	=== ICMPv6 Destination Unreachable ===>
		src address:	TN link-local address
		dst address:	On-link unreachable address
		code:		0 (no route to destination)
	2.
	<< JUDGEMENT >>
	<=== No packets ===
		or
	<=== ICMPv6 Time Destination Unreachable ===
         Code = 3

=head1 JUDGEMENT

	<< PASS >>
		NUT don't 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
# <pre>
#     <b>(e) An ICMPv6 error message MUST NOT be sent as a result of
#         receiving:<br>
#          (e.1) an ICMPv6 error message</b>, or
# </pre>
# 
# =end html
# 

=pod

=head1 REFERENCE

=begin html
<BLOCKQUOTE>
<PRE>
RFC 2463 - ICMPv6 (ICMP for IPv6)
</PRE>
</BLOCKQUOTE>

=end html

=head1 SEE ALSO

	perldoc V6evalTool

=cut