Interfaces: Neighbors: Automatic Discovery - Only works with ALL interfaces

[Rene78]

Hi all,

Just upgraded to 25.7.11_1 from 25.7.10. Everything works as normal. Fiddling around with the new feature Interfaces: Neighbors: Automatic Discovery. Noticed that it works, but only with All interfaces selected. Any other subselection of interfaces, including Select All, prevents the service from starting.

See below for examples. When looking at the log (when using All) shows that the adds capture for the various interface devices. I have bridges configured (multiple eth-devices into different LANs (IOT and NET for example) and have pppoe0 as WAN (VLAN6 on physical interface - KPN FttH).

One error always shows up, and does not seem related. Is there when it works, and when the service does not start. No other logs are available in the GUI that show the reason for the service failing. Using promiscuous mode does not make a difference, nor does verbose logging for figuring out what is going wrong. All my interface types can be captured apparently...   

Successful when All:
2026-01-17T13:10:02.890816Z INFO hostwatch: Added capture for device: pppoe0 (WAN_INET (wan))
2026-01-17T14:10:02Noticehostwatch 2026-01-17T13:10:02.890344Z INFO hostwatch: Added capture for device: bridge1 (LAN_IOT (opt12))
2026-01-17T14:10:02Noticehostwatch 2026-01-17T13:10:02.889866Z INFO hostwatch: Added capture for device: bridge0 (LAN_INET (lan))
2026-01-17T14:10:02Noticehostwatch 2026-01-17T13:10:02.889356Z INFO hostwatch: Added capture for device: wg0 (ViperWG (opt13))
2026-01-17T14:10:02Noticehostwatch 2026-01-17T13:10:02.888815Z INFO hostwatch: Added capture for device: vlan03 (LAN_IPTV (opt10))
2026-01-17T14:10:02Noticehostwatch 2026-01-17T13:10:02.888242Z INFO hostwatch: Added capture for device: vlan02 (WAN_IPTV (opt8))
2026-01-17T14:10:02Noticehostwatch 2026-01-17T13:10:02.887692Z INFO hostwatch: Added capture for device: vlan01 (No description)
2026-01-17T14:10:02Noticehostwatch 2026-01-17T13:10:02.887166Z INFO hostwatch: Added capture for device: igb7 (ETH8 (opt9))
2026-01-17T14:10:02Noticehostwatch 2026-01-17T13:10:02.886684Z INFO hostwatch: Added capture for device: igb6 (ETH7 (opt11))
2026-01-17T14:10:02Noticehostwatch 2026-01-17T13:10:02.886156Z INFO hostwatch: Added capture for device: igb5 (ETH6 (opt6))

Error always visible (regardless if the service does or does not start):
2026-01-17T13:10:02.914762Z WARN hostwatch: Failed to initialize capture for device: pfsync0

Edit: Found some logs in the general log in settings.

At failure to start:
2026-01-17T14:15:15Noticekernel <6>[1488] pid 81926 (hostwatch), jid 0, uid 0: exited on signal 6 (no core dump - bad address)
2026-01-17T14:15:15Noticeroot /usr/local/etc/rc.d/hostwatch: WARNING: failed to start hostwatch
2026-01-17T14:14:54Noticekernel <6>[1467] pid 29596 (hostwatch), jid 0, uid 0: exited on signal 6 (no core dump - bad address)
2026-01-17T14:14:54Noticeroot /usr/local/etc/rc.d/hostwatch: WARNING: failed to start hostwatch

At successful start: no logs related to the service in General. Only the change in config XML file (enabled check).