NAME

        Dst_Unreach_2.seq - check ICMPv6 Destination Unreachable code 0

TARGET

        Router

SYNOPSIS

        Dst_Unreach_2.seq [-tooloption ...] -p 
        Dst_Unreach_2.def

INITIALIZATION

        When test starts, configure a default route with TN as the next hop.
        And states of Neighbor Cache Entry for TN's addresses are reachable.

TEST PROCEDURE

        This test verifies that NUT sends valid ICMPv6 Destination 
        Unreachable (code 2) in response to a packet when the scope of
        the source address is smaller than the scope of the destination
        address and the packet cannot be delivered to the destination
        without leaving the scope of the source address.

        TN                      NUT

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

        1.
         === Echo Request  ===>
                src address : TN link-local address
                dst address : offlink address
        2.
        << JUDGEMENT >>

         <=== ICMPv6 Destination Unreachable ===
                Code is 2

JUDGEMENT

        << PASS >>
                NUT send ICMPv6 Destination Unreachable.

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

REFERENCE

RFC 4443 - ICMPv6 (ICMP for IPv6)