%% You should probably cite rfc9898 instead of this I-D. @techreport{ietf-v6ops-nd-considerations-02, number = {draft-ietf-v6ops-nd-considerations-02}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ietf-v6ops-nd-considerations/02/}, author = {XiPeng Xiao and Eduard V and Eduard Metz and Gyan Mishra and Nick Buraglio}, title = {{Selectively Isolating Hosts to Prevent Potential Neighbor Discovery Issues and Simplify IPv6 First-hops}}, pagetotal = 33, year = 2023, month = jul, day = 9, abstract = {Neighbor Discovery (ND) is a key protocol of IPv6 first-hop. ND uses multicast extensively and trusts all hosts. In some scenarios like wireless networks, multicast can be inefficient. In other scenarios like public access networks, hosts may not be trustable. Consequently, ND has potential issues in various scenarios. The issues and the solutions for them are documented in more than 30 RFCs. It is difficult to keep track of all these issues and solutions. Therefore, an overview is useful. This document firstly summarizes the known ND issues and optimization solutions into a one-stop reference. Analyzing these solutions reveals an insight: isolating hosts is effective in preventing ND issues. Five isolation methods are proposed and their applicability is discussed. Guidelines are described for selecting a suitable isolation method based on the deployment scenario. When ND issues are prevented with a proper isolation method, the solutions for these issues are not needed. This simplifies the IPv6 first- hops.}, }