Network Configuration

1. IP Settings

By default, both network ports of the 1684X box are configured with static IPs, as follows:

eth0 (LAN1)192.168.49.102 (dynamic IP on some versions)
eth1 (LAN2)192.168.49.32

Note

If you need to change the configuration, modify the /etc/netplan/eth0.yaml file in the system.

The following is a sample configuration where eth0 obtains its IP dynamically via DHCP and eth1 uses a static IP. If you want to change the IP or DHCP setting of either port, you can refer to the other.

TOOL

Modify the configuration, using vim editing as an example:

    sudo vim /etc/netplan/eth0.yaml

	sudo netplan apply

Tips

    1. The file editing interface will open. Press i to enter edit mode; use the arrow keys to move the cursor and edit the text.
    1. Configure the settings according to the example in the image above. Make sure the indentation matches the example exactly.
    1. When editing is complete, in command mode (press Esc to ensure you are in command mode), type :wq and press Enter to save and exit.
    1. Apply the updated network configuration to make the system run with the new settings. If there are no errors, the update succeeded.

Warning

If file permissions or other reasons prevent a normal save and exit, you can use the force save-and-exit command.

In command mode, type :wq! and press Enter. The ! forces the operation, ignoring any warnings or errors and performing the save and exit.

2. Networking Methods

The development board has no built-in wireless network card. You can connect via Ethernet directly to a router or share the PC network over Ethernet. The method of sharing the PC network over Ethernet is described in detail below.

Note

Sharing the PC network over Ethernet lets a single Ethernet cable satisfy both internet access and SSH LAN connectivity.

Connect the LAN2 port of the development board to the PC with an Ethernet cable (because the default settings assign LAN1 as the dynamic port and LAN2 as the static port; the configuration file is editable at etc/netplan/eth0.yaml).

TOOL

Press win+R to open the Run dialog, enter regedit to open the Registry Editor, and navigate to Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters. Edit ScopeAddress and ScopeAddressBackup to 192.168.49.1. (Just make sure it is in the same subnet as the development board — here, the 192.168.49.X subnet.)

tip: The Windows sharing IP defaults to 192.168.137.1; you can also change the board's static IP to a value in that subnet instead.

TOOL

Enable Wi-Fi network sharing: Open Control Panel -> Network and Internet -> Network and Sharing Center -> Change adapter settings. Right-click WLAN -> Properties, open the Sharing tab, and check all boxes (for multi-adapter systems, select the correct adapter). Click OK; an IP prompt dialog appears — confirm it.

TOOL

After this setting, the corresponding wired adapter becomes the target IP.

TOOL

In MobaXterm, open an SSH connection to the development board and verify the network: ping 8.8.8.8 -c 4 (or ping baidu.com -c 4).

TOOL