The DNS content filter is not working

Zyxel_Kevin Posts: 752  Zyxel Employee
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The DNS content filter is not working, Already check the settings on GUI is find.

-Enable DNS content filter

-The profile already applied at Secure Policy " LAN→WAN and LAN→Zywall"

Check List:


Router(config)# show security-service status

dns-content-filter activation: no

If the value is "no", please enalbe by command line

Router(config)# security-service dns-content-filter activate


Router(config)# show utm-manager dns-content-filter defaultport

No.    Proto              Port


If the output is null, please add by following command:

Router(config)# utm-manager dns-content-filter defaultport 53

Please contact Zyxel Support if the issue persist.