#!/usr/bin/perl
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# $TAHI: ct/nd.p2/v6LC_2_1_9_C-v3_8_2.seq,v 1.5 2009/01/05 06:39:39 akisada Exp $
#
########################################################################

use nd;

BEGIN {}
END   {}

my $ereq	= 'ndisc_ereq_LL';
my $ns		= 'nd_ucast_ns';

startNdiscWorld($Link0);

vLogHTML('<FONT COLOR="#FF0000" SIZE="5"><U><B>Procedure</B></U></FONT><BR>');

if(ndiscNone2Incomplete($Link0, $ereq) < 0) {
	exitFail();
	#NOTREACHED
}

if(ndRecvNsNone2Incomplete($Link0, $ns) < 0) {
        exitFail();
        #NOTREACHED
}

exitPass();
#NOTREACHED



#
# perldoc
#
########################################################################
__END__

=head1 Title

  Test v6LC.2.1.9: Neighbor Solicitation Processing, NCE State INCOMPLETE
  Part C: Unicast Neighbor Solicitation without SLL

=head1 Purpose

  Verify that a node properly updates its neighbor cache upon receipt of neighbor solicitations
  when the NCE of the neighbor is in state INCOMPLETE.

=head1 References

  * [IPv6-ARCH]  Section 2, 2.8
  * [ND]  Sections 7.2.3 and 7.2.4

=head1 Resource Requirements

  * Packet generator
  * Monitor to capture packets

=head1 Test Setup

  No Common Test Setup is performed. Wait at least 3 seconds
  (MAX_MULTICAST_SOLICIT * RETRANS_TIMER) after any previous cleanup to make sure all
  previous NCE's are in state No NCE. The Common Test Cleanup procedure is performed after each part.

=begin html

<BLOCKQUOTE>

<TABLE BORDER>
<Caption>Packet A</Caption>
<TR>
<TD>
        IPv6 Header<br>
        Next Header: 58<br>
        Source Address: TN1's Link-local Address<br>
	Destination Address: NUT's Link-local Address
</TD>
</TR>
<TR>
<TD>ICMPv6 Echo Request</TD>
</TR>
</TABLE>

<br>

<TABLE>
<TR>

<TD>
<TABLE BORDER>
<Caption>Neighbor Solicitation B</Caption>
<TR>
<TD>
	IPv6 Header<br>
	Next Header: 58<br>
	Destination Address: NUT's Link-local Address<br>
	Source Address: TN1's Link-local Address
</TD>
</TR>
<TR>
<TD>
	Neighbor Solicitation<br>
	Target Address: NUT's Link-local Address<br>
	Source Link-Layer Address: TN1's Ethernet address
</TD>
</TR>
</TABLE>
</TD>

<TD>
<TABLE BORDER>
<Caption>Neighbor Solicitation C</Caption>
<TR>
<TD>
        IPv6 Header<br>
        Next Header: 58<br>
	Destination Address: NUT's Solicited-node Multicast Link-local Address<br>
        Source Address: TN1's Link-local Address
</TD>
</TR>
<TR>
<TD>
	Neighbor Solicitation<br>
        Target Address: NUT's Link-local Address<br>
        Source Link-Layer Address: TN1's Ethernet address
</TD>
</TR>
</TABLE>
</TD>

</TR>
</TABLE>
</BLOCKQUOTE>

=end html

=head1 Procedure

  Part C: Unicast Neighbor Solicitation without SLL
   13. TN1 transmits Echo Request A.
   14. Check the NCE of TN1 on the NUT and observe packets transmitted by the NUT.
   15. TN1 transmits Neighbor Solicitation B without the Source Link-layer Address option.
   16. Check the NCE of TN1 on the NUT and observe packets transmitted by the NUT.

=head1 Observable Results

  Part C

   Step 14:
   The NUT should create a Neighbor Cache Entry for TN1 and set the state of the
   Entry to INCOMPLETE. The NUT should send a multicast Neighbor Solicitation to TN1.

   Step 16: 
   After receiving TN1's Neighbor Solicitation, the NUT should not update the NCE

=head1 Possible Problems

  * None. 

=cut