custom firewall / iptables LOG / librespot

    Dear All,

    I am running a custom firewall rules.v4 with currently LibreELEC-RPi4.aarch64-13.0-nightly-20251126-257c8e7. Unfortunately, my custom iptables firewall is a bit to strict to let librespot be detectable by spotify. I want to debug the dropped packets by LOG statements like


    -A INPUT -p udp -j LOG --log-level warning --log-prefix "UDP DROP:"


    Unfortunately, I do not get any iptables LOG messages in dmesg, journalctl -k, or kodi.log.

    How can I get the iptables LOG messages?


    If I flush all firewall rules, librespot is detectable, with my custom firewall it is not detectable anymore. Any hints here? Which ports need to be open?


    Thanks in advance for your help.