vh
0b8632a7ed
The shim holds 10.0.50.47/24, which gives two equal connected 10.0.50.0/24 routes, and ens18's wins. Host-to-HA traffic therefore left via the macvlan parent and was dropped. HA lost MQTT to the broker on this host on 2026-08-19, 2026-09-21 and 2026-09-25 (the last lasted two days). This adds an ifupdown if-up.d hook that routes 10.0.50.46/32 via macvlan-shim; /etc/network/interfaces is not edited. Verified: the route resolves via the shim, the host pings HA, HA reaches :1883, and HA reconnected to the broker. Diagnosis by ha-dev. Also corrects the zigbee2mqtt acceptance note, which had wrongly reported HA as connected.
13 lines
888 B
Bash
13 lines
888 B
Bash
#!/bin/sh
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# esh-docker-vm: route the host's traffic for macvlan children over the shim (ifupdown if-up.d hook).
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#
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# Home Assistant sits on a macvlan (10.0.50.46, parent ens18). A macvlan parent cannot talk to its
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# own children, so the host reaches HA only through macvlan-shim (10.0.50.47, a macvlan sibling).
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# The shim holds a /24, which gives TWO equal connected 10.0.50.0/24 routes; ens18's is listed first
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# and wins, so host->HA traffic left via ens18 and was dropped. HA lost MQTT (the broker is on
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# this host) on 2026-08-19, 2026-09-21 and 2026-09-25, the last for two days. A /32 via the shim is
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# more specific than either /24, so the choice no longer depends on route order.
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# Installed by playbooks/esh-docker-vm-macvlan-shim-route.yaml. Add a line per macvlan child.
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[ "$IFACE" = "macvlan-shim" ] || exit 0
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ip route replace 10.0.50.46/32 dev macvlan-shim # homeassistant
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