#!/usr/bin/perl
#
# $Copyright$
#
# $Id: IH_UnrecognizedNextHeader.seq,v 1.1.1.1 2000/10/31 22:39:21 sekiya Exp $
#
######################################################################
BEGIN {
	$V6evalTool::TestVersion = '$Name:  $';
}

use V6evalTool;

%pktdesc = (
	unrecog		=> 'Send Unrecognized Next Header in IPv6 Header',
	icmperr		=> 'Recv ICMP Error (Parameter Problem, unrecognized Next Header type encounted)',
	ns		=> 'Recv Neighbor Solicitation',
	na		=> 'Send Neighbor Advertisement',
);

$IF = Link0;

vCapture($IF);

vSend($IF, unrecog);

%ret = vRecv($IF, 5, 0, 0, ns, icmperr);
if ($ret{status} != 0) {
	vLogHTML('<FONT COLOR="#FF0000">NG</FONT>');
	exit $V6evalTool::exitFail;
}

if ($ret{recvFrame} eq 'ns') {

	vSend($IF, na);

	%ret = vRecv($IF, 5, 0, 0, icmperr);
	if ($ret{status} != 0) {
		vLogHTML('<FONT COLOR="#FF0000">NG</FONT>');
		exit $V6evalTool::exitFail;
	}
}

if ($ret{recvFrame} ne 'icmperr') {
	vLogHTML('<FONT COLOR="#FF0000">NG</FONT>');
	exit $V6evalTool::exitFail;
}

vLogHTML('OK');
exit $V6evalTool::exitPass;


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

=head1 NAME

  IH_UnrecognizedNextHeader - check Unrecognized Next Header in IPv6 Header

=head1 TARGET

  Host and Router

=head1 SYNOPSIS

=begin html
<PRE>
  <A HREF="./IH_UnrecognizedNextHeader.seq">IH_UnrecognizedNextHeader.seq</A> [-tooloption ...] -pkt <A HREF="./IH_UnrecognizedNextHeader.def">IH_UnrecognizedNextHeader.def</A>
    -tooloption : v6eval tool option
</PRE>

=end html

=head1 INITIALIZATION

  None

=head1 TEST PROCEDURE

  Tester                      Target
    |                           |
    |-------------------------->|
    |   Test Packet             |
    |                           |
    |                           |
    |<--------------------------|
    |   Neighbor Solicitation   |
    |                           |
    |                           |
    |-------------------------->|
    |   Neighbor Advertisement  |
    |                           |
    |                           |
    |<--------------------------|
    |   ICMP Error              |
    |                           |
    v                           v

  1. Send Test Packet (Unrecognized Next Header in IPv6 Header)
  2. Wait ICMP Error or NS
  3. If NS received then send NA, and wait ICMP Error again
  4. Receive ICMP Error

  Test Packet to Target Data is:

        IPv6 Header
            Version            = 6
            Traffic Class      = 0
            FlowLabel          = 0
            PayloadLength      = 0
            NextHeader         = 128 (Unrecognized value)
            HopLimit           = 0
            SourceAddress      = Tester Address
            DestinationAddress = Tester Address

=head1 JUDGEMENT

  PASS: ICMP Error Received

        IPv6 Header
            Version            = 6
            Traffic Class      = 0
            FlowLabel          = 0
            PayloadLength      = 48
            NextHeader         = 58 (ICMP)
            HopLimit           = 64
            SourceAddress      = Target Address
            DestinationAddress = Tester Address

        ICMP Error
            Type           = 4 (Parameter Problem)
            Code           = 1 (unrecognized Next Header type encounted)
            Checksum       = (auto)
            Pointer        = 6 (Offset to Next Header type)
            PayloadData    = (Sent Packet)

=head1 SEE ALSO

  perldoc V6evalTool

=cut