NAME

        Echo_Global.seq - check that sending and receiving
                          Echo Request and Echo Reply (Global Address)

TARGET

        Host/Router

SYNOPSIS

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

INITIALIZATION

        If the NUT is a host, send a Router Advertisment.
        If the NUT is a router, configure a default route with TN as the next hop.
        And make state of Neighbor Cashe Entry for TN's addresses reachable.

TEST PROCEDURE

        This test verifies that NUT receives valid ICMPv6 Echo Request 
        and sent valid ICMPv6 Echo Reply.

        TN                      NUT

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

        1.
         === ICMPv6 Echo Request ===>
                        src address : TN global address
                        dst address : NUT global address        
        2.
        << JUDGEMENT >>

         <=== ICMPv6 Echo Reply ===
                        src address : NUT global address
                        dst address : TN global address

JUDGEMENT

        << PASS >>
                NUT send ICMPv6 Echo Reply

        << FAIL >>      
                NUT do not send ICMPv6 Echo Reply

REFERENCE

RFC 2463 - ICMPv6 (ICMP for IPv6)