Multihoming is one of the key feature of IPv6. For IP mobility all Mobile IP protocols (IPv4 or IPv6) are designed in the same way (Proxy Mobile IP, Hierarchical Mobile IP, Fast Handover Mobile IP). IPv6 based mobile networks are more flexible and autonomous.
Thank you for explanation. But "why" is it more flexible and autonomous?
The semantic of IPv6 and IPv4 address is the same - it names the interface, not the host. Thus in IPv6 there are the same problems as in IPv4 when we have multi-interface hosts. The problem most important for me is that the host cannot have single record in DNS but MUST have multiple DNS names for each IPv4/v6 interface.
In my view, IPv6 did not resolved multihoming (and mobility) problems, but added a great interoperability problem. Which explains the "high" level of IPv6' implementation in Internet.
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