GRAND (Gratuitous Neighbour Discovery) fixes an asymmetry in IPv6 where newly configured hosts can reach routers but routers may not yet know how to reach the hosts, causing latency or packet loss on first return traffic. The mechanism makes hosts proactively advertise their addresses via unsolicited Neighbour Advertisements instead of waiting for routers to discover them reactively. The author implemented GRAND in FreeBSD following RFC 9131 guidelines.
PGSkiff is a service that enables IPv4 clients to connect to IPv6-only PostgreSQL databases without requiring client changes, VPNs, or proxy maintenance. It provides a single endpoint that handles connections, TLS, and routing while maintaining full compatibility with standard Postgres drivers and tools.
An article discussing IPv6 addressing challenges for space networking. It outlines how current terrestrial IPv6 mechanisms fail at interplanetary scales and proposes the EXPANSE working group to address fourteen identified gaps, including lack of registration models, inefficient Earth-centric routing, and jurisdictional fragmentation in space infrastructure.
A user configures Pi-hole with IPv6 support on a home network despite ISP router limitations. By enabling Router Advertisements with high preference on Pi-hole, devices prefer the local DNS server over the ISP's DNS, effectively circumventing the locked-down router's IPv6 restrictions.