stps2 Posted October 11, 2022 Share Posted October 11, 2022 (edited) Hi there I've got the Keenetic 4G with the latest firmware. I have enabled firewall for Home segment. The default rule is deny TCP/UDP. DNS requests (UDP 53) are permitted. However this is not working (timeout on nslookup from clients). If I disable the Deny UDP rule, DNS requests are working. What is wrong? Edited October 11, 2022 by stps2 1 Quote Link to comment Share on other sites More sharing options...
0 Le ecureuil Posted October 11, 2022 Share Posted October 11, 2022 Please provide self-test for investigation. Quote Link to comment Share on other sites More sharing options...
0 stps2 Posted October 11, 2022 Author Share Posted October 11, 2022 Self-test results was attached, but rejected by forum Administrator. Quote Link to comment Share on other sites More sharing options...
0 stps2 Posted October 11, 2022 Author Share Posted October 11, 2022 Is there an alternative way to provide self-test results? Quote Link to comment Share on other sites More sharing options...
0 admin Posted October 11, 2022 Share Posted October 11, 2022 44 minutes ago, stps2 said: Self-test results was attached, but rejected by forum Administrator. Accepted. Your post is hidden just in case it contains sensitive information. Still visible to @Le ecureuil Quote Link to comment Share on other sites More sharing options...
0 stps2 Posted October 11, 2022 Author Share Posted October 11, 2022 Also I've figured out that if I create an upper rule like 'Permit / UDP / Source IP: client IP / Source Port: Any / Destination IP: Any / Destination Port: Any", everything works. So it is a bug that the rule mechanism does not take matter of destination IP address and port + Protocol, only Protocol (in case of UDP) I've got an old deprecated model ZyXel / Keenetic Lite III with the same rule set, and it does not have this bug. Can I contact the vendor support to fix this bug? Quote Link to comment Share on other sites More sharing options...
0 stps2 Posted October 12, 2022 Author Share Posted October 12, 2022 ? Quote Link to comment Share on other sites More sharing options...
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Question
stps2
Hi there
I've got the Keenetic 4G with the latest firmware.
I have enabled firewall for Home segment. The default rule is deny TCP/UDP.
DNS requests (UDP 53) are permitted. However this is not working (timeout on nslookup from clients).
If I disable the Deny UDP rule, DNS requests are working.
What is wrong?
Edited by stps2Link to comment
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