could be used to distinguish IPv6 from IPv4, as
the value 0x86dd and 0x0800 respectively. Under
this transition mechanism, management information
of both IP versions could be retrieved
via IPv4 messages. However, an exceptional
restriction is that the management agent or monitoring
tool should be able to collect IPv6 traffic,
or say that management agent or tool should
support IPv6. For instance, NetFlow[3] version 9,
a flow monitor developed by Cisco, could collect
both IPv6 and IPv4 traffic information of a
dual stack host and export them to a back-end
NMS via IPv4.