NAME

        SAD_a_dst_unr_LLA.seq - check Message Processing Rules (ICMPv6
         Destination Unreachable , link local address)

TARGET

        Host and Router

SYNOPSIS

        SAD_a_dst_unr_LLA.seq [-tooloption ...] -p SAD_a_dst_unr_LLA.def

INITIALIZATION

        When test stars, states of Neighbor Cache Entry for TN's 
        addresses are reachable.

TEST PROCEDURE

        This test verifies that the message source address determination ,
        
    (a) If the message is a response to a message sent to one of the
        node's unicast addresses, the Source Address of the reply must
        be that same address.

        TN                      NUT

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

        1.
         === UDP packet  ===>
                src address : TN link local address
                dst address : NUT link local address
                        port number is not used in NUT
        2.
        << JUDGMENT >>

         <=== ICMPv6 Destination Unreachable ===
                src address : NUT link local address
                dst address : TN link local address
             Code is 4

JUDGMENT

        << PASS >>
                NUT send ICMPv6 Destination Unreachable.
                

        << FAIL >>      
                NUT do not send ICMPv6 Destination Unreachable.

SEE ALSO

          perldoc V6evalTool