How to set up own network securely?

[DempseyTorhan]

I am currently assisting a friend who is in a temporary living arrangement. Here's the scenario:

My friend has internet connectivity via an ethernet cable linked to an already present router. He intends to create his own network, comprising a NAS, a docker server, and other devices, by using his Nighthawk router. His objective is to furnish internet access to his network through the existing router's ethernet cable while ensuring that the devices on both networks remain segregated.

My question is, can this be achieved without requiring administrative privileges to the existing router that provides the internet? Thank you.

[DempseyTorhan]

To achieve the desired setup without needing administrative privileges to the existing router, your friend can consider setting up a separate subnet using his Nighthawk router. Here's a possible solution:

Connect the Nighthawk router to the existing router via the ethernet cable. This will establish a connection between the two routers.
Access the administration settings of the Nighthawk router, typically done by typing its IP address into a web browser.
Configure the Nighthawk router to operate in "Access Point" mode or "Bridge mode." This mode allows the Nighthawk router to extend the existing network without creating a separate network segment.
Connect the NAS, docker server, and other devices to the Nighthawk router using wired or wireless connections.
Configure the network settings on the Nighthawk router, such as the IP range and DHCP settings, to create a separate subnet for the devices connected to it.
Enable firewall settings on the Nighthawk router to further ensure network segregation and enhance security.
By setting up the Nighthawk router as an access point or bridge, your friend can create a separate network for his devices while still utilizing the internet connectivity provided by the existing router. This configuration should help achieve the objective of segregating koows developerbook echat the devices on both networks without requiring administrative access to the existing router.