In the following lab we will interconnect two remote networks with each other. To do this we will install Nebula on both routers related to these networks. The equipment used is from the gl.inet brand. The chosen models are Brume 2 GL-MT2500.
Both equipment have the open source firmware based on Linux called OpenWrt. It is a very similar video to those previously made with ZeroTier and TailScale.
The particularity of these labs is that it is not necessary to install anything on any PC, Mobile, Tablet or Notebook, all the work to make the routers mentioned. As an extra, a Linux Ubuntu server is configured with a Public IP on the Internet (lighthouse), whose resource consumption is very low. The function of the latter allows the routers to find each other anywhere in the world where they are and to be able to route packets between the LAN networks that make them up. Nebula was created to provide a mechanism for hosts, in our case the routers, to communicate securely, even over the Internet.
Basically we can establish connections from behind most firewalls or NATs.
Nebula is very important for those people who want to access their internet network but have an internet connection through an ISP that gives them CG-NAT IP.
Lab done
VIDEO TUTORIAL
