Connect a cable from one of the LAN ports on router A to the WAN port on router B. Set Router B's WAN IP address to 192.168.1.51, and its internal LAN IP to 192.168.2.1. Tell it to hand out DHCP addresses on something like 192.168.2.2 through 192.168.2.50. Set the DNS settings on this router's DHCP to what you want for your kids.

Nearly everything on the Internet starts with a DNS request. DNS is the Internet’s directory. Click on a link, open an app, send an email and the first thing your device does is ask the directory: Where can I find this? Unfortunately, by default, DNS is usually slow and insecure. 8 Best DNS Servers 2020 [Gaming, PS4 & Xbox One] Jul 01, 2020 Free and Public DNS Server List (Valid July 2020) Jul 01, 2020 I only have 1 DNS server number? Now what do i do? | Yahoo Jan 06, 2008

Apr 01, 2018

What is 1.1.1.1? | Cloudflare

NS1 | Managed & Private DNS That’s Smart, Efficient & Fast

Mar 03, 2019 Managed DNS | Domain Name System - StackPath Available. Reliable. Scalable. StackPath DNS is designed for the most demanding applications and the organizations that love them. It leverages the strength and design of our network infrastructure to deliver the highest performance and minimize operational challenges as well as business risk. 1.2. DNS Names - Oracle Cloud This is the DNS name that the SGD web server binds to. After installation, you can configure each SGD server with one or more external DNS names. The external DNS name is used by the SGD Client when it connects to an SGD server. By default, the peer DNS name is also used as an external DNS name. How to Change the DNS Service on Xbox One to Improve Speed Apr 24, 2018