IPv6 support is needed in vehicular ad hoc network (VANET) with geographical routing. Basic IPv6 protocols such as address auto-configuration assume multicast capable link. However, in VANET, link becomes fuzzy and it is difficult to support link-scope multicast. Artificial emulation of multicast capable link like Ethernet is possible but may cause low efficiency and high cost. A new way to efficiently run IPv6 over VANET is needed and this paper proposes such a scheme. Our proposal takes C2C-CC scenario as a reference system and exploits C2C-CC inherent features to perform IPv6 operations without linkscope multicast.
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