NAME

        Dst_Unreach_0_Global.seq - Route Unreachable (Routers Only)

TARGET

        Router

SYNOPSIS

        Dst_Unreach_0_Global.seq [-tooloption ...] -p 
        Dst_Unreach_0_Global.def

INITIALIZATION

        Common Test Setup 1.1

TEST PROCEDURE

Verify that a node properly generates Destination Unreachable Messages

        This test verifies that RUT sends valid ICMPv6 Destination 
        Unreachable (code 0) in response to a packet which can not 
        be delivered to destination address because RUT have no route.
        And this test verifies that the message processing rule ,

        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                      RUT

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

        1.
         === Echo Request  ===>
                src address : TN global address
                dst address : offlink address
        2.
        << JUDGEMENT >>

         <=== ICMPv6 Destination Unreachable ===
                Code is 0

JUDGEMENT

    << PASS >>
    The RUT should send a Destination Unreachable Message to TN.
    The Source Address of the Packet should be one of the RUT's unicast addresses,
    while the Destination Address should be the same as the Source Address in TN's Echo Request.
    The Code field should be set to "0".
    The invoking Echo Request packet included in the Error Message must not exceed minimum IPv6 MTU.

CLEANUP

Common Test Cleanup

REFERENCE

RFC 4443 - ICMPv6 (ICMP for IPv6)