My Epson XP-215 is not recognized with option 'net autodiscovery' in file 'etc/sane.d/epson2.conf' Workaround: Entering DNS-Name or IP-Address of the device in the above described section of the file. Remark: In the actual Linux-Ubuntu-Distribution 14.04 the scanner is detected automatically. How reproducible: always Steps to Reproduce: 1. Restoring original installed file 'epson2.conf' 2. Starting xsane Actual results: The scanner can only be used with the above edited epson2.conf Expected results: Automatic recognition as in ubuntu. Additional info:
For auto-discovery, the epson2 backends sends a UDP broadcast to port 3289. I guess that the response is filtered by the firewall because the sender isn't the broadcast address itself. In the case where you configure the scanner device manually, the device is addressed directly, therefore connection tracking rules apply and let the response through. Thomas, Jiří, is there a "best practice" how to handle that with firewalld? E.g. is there a connection tracking module, or maybe an easier way to specify "let responses to UDP broadcasts [to port XYZ] back through"?
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