When adding a multiport rule, the resulting line (to pass to iptables) become flawed: "-p tcp -p tcp --match multiport" and "-p udp -p udp --match multiport" cause errors when applying firewall (since repetition) and "--equal-ports" is wrong syntax for "--ports" Reproducible: Always Steps to Reproduce: 1.add a multiport-matching rule 2.try to apply firewall rules 3. Actual Results: error applying rules, this stops the process. Expected Results: apply all the rules to iptables without errors.
Created attachment 74596 [details, diff] fixes multiport syntax error (against iptables) I needed to add in a comment since "new bugreport" form didn't allowed to add. Patch is also already sent to developers of kmyfirewall to be evaluated.
Indeed. Thanks Matteo.