I need to see my kids browsing history cognito/incognito

Model-C7000v2

I was able to login to router.

When I saw logs...it's showing source and target as 0.0.0.0. 

Like:

Description                                                                 Count          Last Occurances            Target               source

[DHCP IP:<IP>] to MAC address <macaddress>.      1               Thu Sept 05 <time>         0.0.0.0.            0.0.0.0

All logs are like above.

How to check which website was visited?  How to configure DNS name on logs? How to fix this?