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Hitron CGNM-2250: failing firewall test

Question asked by 2606135735 on Mar 19, 2016
Latest reply on Jul 1, 2019 by rvthereyet

There is very handy firewall test over at the Gibson Research website called "shields up". My last modem SMC had no problem passing the test with flying colors. But the new Hitron failed the test apparently because some of ports on the modem responded to remote probing by replying the port was closed, instead of not replying to the probing at all.


So my question is: what settings should I apply to stop Hitron responding to remote probing of ports.