Comment 4 for bug 1973619

Once I turn the firewall off, the autodiscovery starts working (without any changes to /etc/sane.d/epson2.conf):

# service ufw stop
# scanimage -L
device `epson2:net:192.168.8.8' is a Epson PID 085E flatbed scanner

If I reload the firewall rules, the autodiscovery stops working again.

This is probably the only relevant difference between my Ubuntu 21.10 and my Ubuntu 22.04 installations.

Perhaps the stock firewall rules should be amended to make them autodiscovery-friendly.