
298 Part Two • IPv6 Protocols
Mobile IPv6 can be expected to support additional features such as
permitting mobile nodes to use more than one home network.
17.3 Mobile IPv6 Versus Mobile IPv4
These are some important differences between Mobile IPv4 and Mobile
IPv6, as cited in the draft specification for IPv6 mobility.
• There is no need for foreign agents; no special local support is
necessary to allow a mobile IPv6 node to operate correctly.
• IPv4 mobility defines the default mode of operation through
the agency of the mobile node’s home network. This tends to
stress the mobile node’s home agent; the ability to redirect a
correspondent node to the mobile ...