Ethernet interface

The Quectel Pi H1 single-board computer comes with one standard RJ45 port, supporting Ethernet communication speeds of 10/100/1000 Mbps.

Ethernet cable requirement: only straight-through cables are supported; crossover cables are not supported.

Hardware interface:

Basic Functionality

View Network Configuration

The system enables the NetworkManager service by default to manage network connections.

1.In the terminal, enter the command sudo ifconfig to check the network interface addresses:

sudo ifconfig

Example output: The value following inet addr: — in this case, 10.55.62.236 — is the IP address of the device.

2.In the terminal, enter the command sudo route -n to view the network routing information.

sudo route -n

Example output:

3.Check the contents of the /etc/resolv.conf file to verify the DNS server address:

cat /etc/resolv.conf

Example output:

Automatic Network Configuration

The system is set to automatically obtain network configuration. When the device is connected to the local area network using an Ethernet cable, it will automatically acquire network settings.

Prerequisite: A DHCP service must be available in the local network.

Troubleshooting

❗Note：If you modify the network configuration through a remote connection, there is a risk of losing network access. Please ensure you have an alternative method (such as a debug serial port or display) to view the network configuration after modification

1.Check the connection information by running the command nmcli c in the terminal.

nmcli c

Example output:

Check whether the DEVICE column in the output contains eth0. If it does, delete it and recreate the connection.

2.To delete the old connection information, enter the following command in the terminal:

nmcli c del 'XXXX'

XXXX represents the NAME obtained from the nmcli c query.

After successful deletion, a default connection named eth0 will be automatically created. Replug the network cable, and the system will automatically obtain the network configuration.

Manual Network Configuration

1.Check the connection information by running nmcli c in the terminal.

Observe whether the DEVICE column in the output contains eth0, and note its NAME.

If eth0 is not listed, create a new eth0 connection by running the following command in the terminal:

nmcli c add type ethernet con-name 'Wired connection 1' ifname eth0

2.For manual configuration, execute the following command in the terminal:

nmcli c modify 'Wired connection 1' \
ipv4.addresses 192.168.1.100/24 \
ipv4.gateway 192.168.1.1 \
ipv4.dns 192.168.1.1 \
ipv4.method manual

3.Enable the connection (modify the IP address, gateway address, and DNS address in the example as needed).

nmcli c up 'Wired connection 1'

Test the Network

Run the ping command to test network connectivity

• Run ping 8.8.8.8. If the ping is successful, it indicates that the external network connection is working properly.
• Run ping www.google.com. If the ping is successful, it indicates that the external network connection is normal and the DNS resolution function is working correctly.