LAN Interface
To view the local network settings of the RLTK421:
- Network
- Interfaces
the menus can be followed. The LAN connection status will be visible in LAN. Reconnection can be attempted with the Connect button. The settings of the LAN network can be configured by clicking the Edit button.

The section under Common Configuration configures the IP settings of the LAN network. The section under DHCP Server contains the settings related to the device's DHCP server.
Common Configuration
- The LAN interface uses a default static IP address of 192.168.1.1 and a subnet mask of 255.255.255.0. These parameters can be changed.
- The Wi-Fi interface (WLAN) and wired LAN are on the same LAN network.
After entering the settings, the Save & Apply button should be clicked to save the settings.

DHCP
The DHCP server function is enabled by default, and all devices connected to the LAN port automatically receive an IP address (if the devices are set as DHCP Clients).
- We can change the starting address and lease time of the DHCP Client.
- DHCP addresses are assigned starting from 192.168.1.100 by default.
- The default lease time is 12 hours.
After entering the settings, the Save & Apply button should be clicked to save the settings.

Static IP
- Network
- DHCP
By following these menus, we can assign a static IP address and hostname to a DHCP Client device. Only a specific client can be connected, and the LAN interface mode cannot be DHCP.
