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RFC 2373:IP Version 6 Addressing Architecture
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IPv6 node


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... IPv6 nodes may have considerable or little knowledge of the internal structure of the IPv6 address, depending on the role ...
... IPv6 packets over IPv4 routing infrastructure. IPv6 nodes that utilize this technique are assigned special IPv6 unicast addresses ...
... The above multicast addresses identify the group of all IPv6 nodes, within scope 1 (node-local) or 2 (link-local ...



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