unkin-agent b74bced771 Persist rp_filter=0 on every router interface (#539)
Effective rp_filter is max(all, <iface>). Setting `all`/`default` to 0 is not enough after a reboot: `/usr/lib/sysctl.d/50-redhat.conf` sets `net.ipv4.conf.*.rp_filter = 1`, which udev applies to every interface as it is created, so routed asymmetric traffic gets dropped once shorewall goes.

- add `net.ipv4.conf.*.rp_filter: 0` to the router role, overriding the vendor glob
- disable `enforce` for it, since `sysctl -n` cannot read glob keys

Reviewed-on: #539
Co-authored-by: unkin-agent <unkin-agent@unkin.net>
Co-committed-by: unkin-agent <unkin-agent@unkin.net>
2026-10-04 16:02:00 +11:00
2026-03-17 17:38:22 +11:00
2023-07-02 14:21:09 +10:00
2026-10-04 14:17:07 +11:00
2023-06-21 22:03:43 +10:00
2025-07-08 20:19:36 +10:00
2024-02-17 22:57:36 +11:00
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