Vehicular Communication Networks (VCN) are critical enabling technologies that contribute to the advancement of Intelligent Transportation Systems. Although initially VCN were thought with a focus on safety, there is a myriad of IP-based applications for information and entertainment systems to be deployed in vehicular scenarios. To support IP-based applications, standard protocol stacks, including IEEE WAVE and the recent 3GPP C-V2X architectures, define the transport of IPv6 and related protocols on top of the specific wireless access technologies.
One of the fundamental protocols for the use of IPv6 is Neighbor Discovery (ND), defined in RFC 4861. In this work, we evaluate the performance of the standard ND protocol and compare it to recent works, including several IETF Internet-drafts, that propose enhancements for the IP registration and duplicate detection processes in the dynamic environment of VCN.