Files
vanlink/failover/config.json
T
Andreas WredeandClaude Sonnet 5 6d5184e2e7 failover: ipv4.never-default + per-WAN probe scheduling; tune probe cadence
van-failover is now the sole owner of default-route selection: netplan/NM
profiles get ipv4.never-default so NM's own DHCP/lease renewals stop
reinstalling competing default routes (was racing van-failover's enforce_route
on Starlink's 16s lease). set_profile_metric() also pins never-default on
NM-managed connections it doesn't own the netplan source for (e.g. cellular),
and nm_gateway() falls back to the raw DHCP4 lease's `routers` option since NM
stops populating IP4.GATEWAY once never-default is set.

Probing moved from one shared round to independent per-WAN retry scheduling,
so a flaky WAN retries on its own clock instead of dragging healthy WANs into
extra probes or throttling a failing one to the slow steady-state cadence.

config.json: probe_interval 4->60, fail/ok_threshold 3/2->2/1, single probe
URL — verified live across this reboot (cellular took ~2min after NM reported
"activated" to actually pass traffic; van-failover correctly withheld/
deprioritized the default route until then, then installed it automatically).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-06 14:22:46 -04:00

15 lines
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JSON

{
"probe_interval": 60,
"probe_timeout": 3,
"fail_threshold": 2,
"ok_threshold": 1,
"probe_urls": [
"http://connectivity-check.ubuntu.com/"
],
"wans": [
{ "name": "wifi", "device": "wlan0", "metric": 100 },
{ "name": "starlink", "device": "@STARLINK_IFACE@", "metric": 200 },
{ "name": "cellular", "connection": "Koodo", "metric": 300 }
]
}