Hostname: Choose a name that is meaningful to you. No spaces are allowed in this field.
IP address: The address of the device within your network.
EXAMPLE: a personal laptop with IP address 192.168.0.164 could be assigned the name "MyLaptop".
Since the assigned name is mapped to an IP address, the device's IP address should not change. To ensure that the device keeps the same IP address, go to Network
Settings → DHCP Server and reserve the IP address for the device by selecting the device in the Active Leases list and clicking "Reserve".
Firewall
The router automatically provides a firewall. Unless you configure the router to the contrary, the router does not respond to unsolicited incoming requests on any port, thereby
making your LAN invisible to cyber attackers.
However, some network applications cannot run with a tight firewall. Those applications need to selectively open ports in the firewall to function correctly. The options on this
page control ways of opening the firewall to address the needs of specific types of applications.