Skip to main content

Ubuntu

PC Configuration​

  1. Windows Security Center -> Firewall and Network Protection -> Turn off the firewall.

  2. Configure the static IP of the RNDIS network card, open Settings -> Advanced Network Settings -> Change Adapter Options.

  3. After connecting the development board, an unrecognized local network will appear on the PC side.

  4. Share the PC network with the development board network.

  5. Configure the development board network information.

Development Board Configuration​

  1. Add route information

    sudo route add default gw 172.32.0.100

  2. Add DNS servers

    Open the file

    sudo vi /etc/resolv.conf

    Add the following content:

    nameserver 8.8.8.8

  3. Network test

    ping www.baidu.com

  4. Automatic configuration at startup

    Route information and DNS servers will be cleared after a restart. We create a script to automatically complete the configuration for us after startup.

    cd /etc/profile.d/
    sudo vi usb_network.sh

    Add the following content:

    #!/bin/sh

    sudo route add default gw 172.32.0.100
    echo "nameserver 8.8.8.8" | sudo tee -a /etc/resolv.conf > /dev/null

    Modify script permissions

    sudo chmod 775 usb_network.sh

    Configure the pico user to execute commands like route, tee, etc., without entering a password in the script.

    sudo visudo

    Add the following content:

    pico ALL=(ALL) NOPASSWD: /usr/sbin/route, /usr/bin/tee

Network Test​

  1. View route information

    pico@luckfox:~$ route -n
    Kernel IP routing table
    Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
    0.0.0.0         172.32.0.100    0.0.0.0         UG    0      0        0 usb0
    172.32.0.0      0.0.0.0         255.255.0.0     U     0      0        0 usb0

  2. View DNS servers

    pico@luckfox:~$ cat /etc/resolv.conf

    #......

    nameserver 127.0.0.53
    options edns0 trust-ad
    search .
    nameserver 8.8.8.8

  3. Network test

    pico@luckfox:~$ ping www.baidu.com
    PING www.a.shifen.com (183.2.172.42): 56 data bytes
    64 bytes from 183.2.172.42: icmp_seq=0 ttl=51 time=10.357 ms
    64 bytes from 183.2.172.42: icmp_seq=1 ttl=51 time=9.662 ms
    64 bytes from 183.2.172.42: icmp_seq=2 ttl=51 time=8.473 ms
    64 bytes from 183.2.172.42: icmp_seq=3 ttl=51 time=9.874 ms
    64 bytes from 183.2.172.42: icmp_seq=4 ttl=51 time=10.498 ms
    64 bytes from 183.2.172.42: icmp_seq=5 ttl=51 time=11.104 ms
    64 bytes from 183.2.172.42: icmp_seq=6 ttl=51 time=9.385 ms
    64 bytes from 183.2.172.42: icmp_seq=7 ttl=51 time=9.726 ms
    64 bytes from 183.2.172.42: icmp_seq=8 ttl=51 time=11.111 ms
    64 bytes from 183.2.172.42: icmp_seq=9 ttl=51 time=10.581 ms
    ^C--- www.a.shifen.com ping statistics ---
    10 packets transmitted, 10 packets received, 0% packet loss
    round-trip min/avg/max/stddev = 8.473/10.077/11.111/0.776 ms