Dst_Unreach_4_Global.seq - check ICMPv6 Destination
Unreachable code 4
Host/Router
Dst_Unreach_4_Global.seq [-tooloption ...] -p
Dst_Unreach_4_Global.def
When test starts, states of Neighbor Cache Entry for TN's
addresses are reachable.
This test verifies that NUT sends valid ICMPv6 Destination
Unreachable (code 4) in response to a packet which can not
be delivered to destination port.
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 NUT
---------------------------
1.
=== UDP packet ===>
src address : TN link local address
dst address : NUT link local address
port : not used in NUT
2.
<< JUDGMENT >>
<=== ICMPv6 Destination Unreachable ===
Code is 4
<< PASS >>
NUT send ICMPv6 Destination Unreachable.
<< FAIL >>
NUT do not send ICMPv6 Destination Unreachable.
perldoc V6evalTool