Draytek Vigor2762 series User Manual page 282

Available settings are explained as follows:
Item
DNS Filter Profile Table
DNS Filter Local Setting
272
Description
It displays a list of different DNS filter profiles (with
specified WCF and UCF).
Click the profile link to open the following page. Then, type
the name of the profile and specify WCF/UCF based on your
requirement.
DNS Filter Local Setting will be applied to DNS query from
clients on LAN when router's DNS server is used.
DNS Filter - Check Enable to enable such feature.
Syslog - The filtering result can be recorded according to
the setting selected for Syslog.

None – There is no log file will be recorded for this
Vigor2762 Series User's Guide