nh3-dev sits on the NH3 LAN and reaches every site through its own default
gateway; RouteAll was already false, so it never used the tunnel for routing.
Membership bought a 100.64.0.4 address nothing referenced -- grep across the
repo and ~/development found only docs and memory hits.
It also cost something concrete. A host running Tailscale installs
-A ts-input -s 100.64.0.0/10 ! -i tailscale0 -j DROP, and because the fleet's
subnet routers preserve source rather than masquerading RFC1918, a mesh client's
packet reached nh3-dev's ens18 still sourced 100.64.x and was dropped silently.
That is why nh3-dev.nh3.internal failed from the mesh while every NH3 host that
does not run Tailscale worked, and it needed a -d 10.100.10.50/32 -j MASQUERADE
exception on nh3-scale to paper over. Retiring the membership removed the
anti-spoof rule, so the exception went with it -- mesh-exit-masq.sh is back to
the two rules it had before yesterday.
Verified after: nh3-dev reachable at 10.100.10.50 from ESH, Anaheim, FV, Irvine
and NH3, and reaching all four sites plus the internet itself. fv-ml1
unaffected.
The mesh is now six nodes and every one has a job: three site routers,
vb-gateway, irv-ml1 (Irvine's own router, no separate scale node), and the
operator's MacBook Air. Nothing is enrolled just in case.
vh
a65cdf65d9