In this video, I go over how to configure an Edgerouter-X for the first time.
EdgeRouter has a DHCP server named 'LAN' with subnet '192.168.1.0/24' and router IP '192.168.1.1' (default ERX config). EdgeRouter is using firmware 1.9.7 or higher (to use 'forwarding except-interface' instead of 'forwarding listen-on').
Change your DNS servers settings. Because the instructions differ between different versions/releases of each operating system, we only give one version as an example. If you need specific instructions for your operating system/version...

Such details provide a deeper understanding and appreciation for Custom Dns Server Settings For Edge Router.
dns dynamic interface eth0 service custom-duckdns server www.duckdns.org commit save exit. Note - Thank you to AK for the email! Apparently a newer EdgeRouter update allows you to use protocol duckdns instead of protocol dyndns2. A couple notes on the options
A quick note how to configure IPv6 for Fiber7 on an EdgeRouter when you also run your own PiHole (thus cant use DNS servers from the prefix delegation).

The Basic Setup wizard which will accomplish all the necessary tasks to allow your router to connect to the Internet, including enabling the default firewall, setting up a Local Area Network and adding a DHCP Server. Each item is explained in more detail below.
Dyndns have changed their check ip page contents from 'IP Address: ' to 'Current IP Address: 'With the noip.com domain name change the update server names also need to be changed to reflect this. Also with my current firmware v1.6 it does have the ability to setup dynamic DNS via the GUI.
Prerequisites and planning for an OpenVPN server on EdgeRouterEdgeRouter OpenVPN server configuration server mode, port, protocolFirewall rules and NAT adjustments