HP-UX IPv6 Transport Administrator Guide HP-UX 11i v3 (5992-6426, May 2013)

an IPv4 protocol type of 41, the same protocol type set when IPv6 packets tunnel inside
IPv4 frames.
“6to4” Topology Example
“6to4” topology consists of: one or more “6to4” hosts in a “6to4” domain; at least one
“6to4” router in the domain that has at least one IPv4 connection to the Internet; and a
“6to4” relay router that is used to connect to a native IPv6 domain.
Nodes can perform the role of the “6to4” router. Host configuration continues to be
supported, as was the case in base (default) HP-UX 11i v2.
Figure 13 “6to4” Topology Example
As shown in the “6to4” topology example of Figure 13:
6to4 host: An IPv6 host that has at least one “6to4” address configured. The "6to4"
address is autoconfigured using the "6to4" prefix advertised by the "6to4" router. It has
60 IPv6 Software and Interface Technology