Issue 197 resolved: the wired port is guarded before it is plugged in

04-ISSUES/143-converging-does-not-retire-the-firewall-it-found/00-report.md

@@ -1,10 +1,10 @@
 ---
-status: located
+status: resolved
 opened: 2026-09-29
 located-in:
   - mesh-host internal/apply/opening.go (retireFirewall)
   - mesh-host internal/apply/apply.go (the condition it is called under)
-fixed-by:
+fixed-by: mesh-host 67 (retire on every converged apply; found-inactive apart from disabled-by-mesh; a skipped step said), mesh-controller 211 (the found firewall's state on node show)
 amended-design:
 ---
 
@@ -108,3 +108,13 @@ convergence is a state the host keeps — the found firewall active again is ret
 reconcile that finds it inactive records *found so* and never *done by the mesh*, and a step skipped
 after a failed apply is said. Built in mesh-host on `feat/one-thing-filters-a-converged-machine`; the
 record of both machines of this mesh is corrected by the first report under it.
+
+## Resolved, 2026-10-02
+
+mesh-host 67 and mesh-controller 211, live on every machine at 10:10Z. The step now runs on every
+converged apply and says what it did; a found firewall enabled again is retired again. The record's
+one inherited lie stands as history: on the control node the machine's own record already said the
+mesh had disabled the firewall, and the host trusts its record, so `node show` says "retired by the
+mesh" there. From this build on, a reconcile that finds the firewall inactive records *found inactive*
+and never the other thing. Whether the flip's step took on 2026-09-29 is not recoverable and is not
+owed by this record any more.

04-ISSUES/144-the-predecessors-rules-outlive-the-firewall-it-was-found-as/00-report.md

@@ -1,10 +1,10 @@
 ---
-status: located
+status: resolved
 opened: 2026-09-29
 located-in:
   - mesh-host internal/apply/opening.go
   - mesh-controller cmd/mesh-controller (the converge preview)
-fixed-by:
+fixed-by: mesh-host 67 (every refusing table and legacy chain classified with an owner; the runtime's user chain is other), mesh-controller 211 (kept, shown on node show, named by status, previewed with fates)
 amended-design:
 ---
 
@@ -91,3 +91,15 @@ chain's refusals as *other*; `node show`, `status` and the converge preview say
 `feat/one-thing-filters-a-converged-machine` in mesh-host and mesh-controller. On 2026-10-02 the home
 server still carries the predecessor's chain in its legacy filter; the record's live row is reading it
 there.
+
+## Resolved, 2026-10-02
+
+mesh-host 67 and mesh-controller 211, live at 10:10Z. The live row of
+[ADR 0168](../../02-DECISIONS/0168-a-converged-machine-is-filtered-by-the-mesh-alone.md) was read the
+same hour: the home server's record names the predecessor's chain in the legacy filter's user chain
+as *other*, with what it refuses, beside two chains a retired front end left in the IPv6 legacy filter;
+the control node's record names the same two leftovers; the laptop and the workstation read *the mesh
+alone*. `status` names both machines and is not well until the operator removes what the mesh did not
+write. The allowance the predecessor's chain carried is
+[issue 145](../145-a-machine-reads-healthy-while-its-modules-cannot-reach-each-other/00-report.md)'s,
+and that record is not closed by this one.

04-ISSUES/197-a-physical-link-that-is-down-is-not-filtered-when-it-comes-up/00-report.md

@@ -0,0 +1,43 @@
+---
+status: resolved
+opened: 2026-10-02
+located-in: [mesh-host internal/outward (Links reported only the links carrying a default route)]
+fixed-by: mesh-host PR 66 (a link backed by a physical device is named outward, up or down), live 2026-10-02
+amended-design: []
+---
+
+# 197 — A physical link that is down is not filtered when it comes up
+
+## What was observed
+
+A sweep of every machine's filter on 2026-10-02. A laptop-class machine connected by its radio has a
+wired port that was unplugged. Its filter guarded the radio and the tunnel, and accepted everything
+arriving on any other link:
+
+```
+iifname != { "mesh0", "<radio>" } accept
+```
+
+The wired port was not in the list. Plugged in, everything arriving on it would have been accepted,
+every port of the machine open to whatever network the cable reached. That would last until the
+machine reported again and was pushed a new filter.
+
+## Why it matters
+
+**The filter's one rule about links fails open.** [ADR 0140](../../02-DECISIONS/0140-the-filter-constrains-what-arrives-from-outside.md)
+has the filter constrain what arrives from outside, and has the machine say which links face outside.
+Everything not named is treated as the machine's own, its containers and bridges. So a link the machine
+fails to name is not filtered at all. The host named only the links carrying a default route at the
+moment it reported. A cable plugged in later is the ordinary case for a laptop. A second wired network
+that never carries the default route, such as a direct link to a storage box, is never named at all.
+
+## Open questions
+
+- A virtual link that faces outside (a VPN client's interface, a USB tether that appears as a virtual
+  device) has no physical device behind it. It is named only while it carries the default route. Is
+  that enough?
+
+## Resolved (2026-10-02)
+
+Live on the affected machine after the host was delivered and one more push: its filter now guards the
+radio, the tunnel and the unplugged wired port, before anything is plugged into it.

04-ISSUES/197-a-physical-link-that-is-down-is-not-filtered-when-it-comes-up/01-diagnosis.md

@@ -0,0 +1,14 @@
+# Diagnosis
+
+*2026-10-02.*
+
+**Located in `mesh-host` `internal/outward`.** `Links` read the kernel's routing tables and returned the
+interfaces carrying a default route. An unplugged port carries none, so it was never reported, and the
+controller rendered the filter around the links it was given.
+
+**The fix.** A link faces outside if it carries a default route **or** has a physical device behind it.
+The kernel lists every interface under `/sys/class/net`, with a `device` entry for one backed by
+hardware. A bridge, a veth, the tunnel and the loopback have none, so they stay the machine's own. The
+wired port is now reported up or down, and the filter guards it before anything is plugged in. Tested
+with a radio carrying the default route and an unplugged wired port beside a bridge, a veth, the docker
+bridge, the tunnel and the loopback: the two physical links are reported, nothing else.