Hey HN,

A few weeks ago, the "Internet Protocol Version 8 (IPv8)" Internet-Draft (draft-thain-ipv8-02) caught our eye. The draft proposes replacing IPv4/IPv6 with a 64-bit hierarchical structure (ASN.Host), giving every 32-bit ASN holder 4.3 billion host addresses and consolidating DHCP, DNS, NTP, Syslog, OAuth, and WHOIS into a unified "Zone Server".

Instead of just debating the theoretical viability on mailing lists, our team at goonhost.rocks decided to implement the entire specification from scratch to see what happens when you deploy it across a distributed multi-AS network.

What we built: - Linux Kernel 6.6: Native AF_INET8 (family 46) socket layer, 28-byte packet routing, and sysctl boundary filters. https://gitlab.turborigby.xyz/goonhost-experiments/linux - Musl Libc: sockaddr_in8, inet_pton8, getaddrinfo() resolver support. https://gitlab.turborigby.xyz/goonhost-experiments/musl - iproute2: Native `ip -8 route` and `ip -8 addr` CLI tooling. https://gitlab.turborigby.xyz/goonhost-experiments/iproute2 - FRRouting: BGP8 daemon with Multi-Protocol Extensions (AFI/SAFI). https://gitlab.turborigby.xyz/goonhost-experiments/frrouting - IPv8 Zone Server (Go): 10-protocol platform (DHCP8, DNS8 TYPE_A8 88, SNTP, NetLog8, OAuth8, WHOIS8, XLATE8). https://gitlab.turborigby.xyz/goonhost-experiments/zoneserve... - Nginx & cURL: Patched for 64-bit IPv8 HTTP traffic. https://gitlab.turborigby.xyz/goonhost-experiments/nginx https://gitlab.turborigby.xyz/goonhost-experiments/curl

We set up a 10-node QEMU multi-AS testbed across 4 Autonomous Systems, pushed 112,000+ active routes into the kernel FIB, and ran continuous traffic generation.

While it works smoothly in an isolated lab, our report highlights several fundamental real-world failure modes: 1. PMTU & Silent MSS Blackholing (28-byte IP header breaks 1500-byte MTU paths without 1452-byte MSS clamping). 2. Asymmetric uRPF / BCP 38 drops on multi-homed ASNs. 3. Legacy DC switch ASIC/TCAM incompatibility (EtherType 0x88B8 punts to CPU exception path). 4. Monolithic Zone Server DDoS blast radius. 5. Systemic economic crises: RIR funding model collapse (90% revenue drop) and global BGP DFZ table explosion (3M–5M+ routes).

Full research report: https://cdnnn.goonhost.rocks/IPV8_RESEARCH_REPORT.md

Show HN: We Implemented the IPv8 Internet-Draft in Linux, Libc, and BGP