Post #232286 2.21K Sep 15, 2026, 16:56 UTC Closing the IPv6 First-Packet Gap with GrandArticle, Comments RIPE Labs Closing the IPv6 First-Packet Gap with GRAND There is a subtle asymmetry in IPv6 Neighbour Discovery: a host knows how to reach its router before the router necessarily knows how to reach the host. GRAND fixes that asymmetry by making the host proactively advertise its address, and I implemented that… 🌭 2