Hi Tim,

I just confirmed that it still working fine and I'll close your issue.

This is a step-by-step process that everyone can follow to get it working:

Configure your board:
=====================

$ ./tools/configure.sh stm32f4discovery:rndis

Compile NuttX to your board:
============================

$ make -j

Flash to your board:
====================

$ sudo openocd -f interface/stlink.cfg -f target/stm32f4x.cfg -c init
-c "reset halt" -c "flash write_image erase nuttx.bin 0x08000000"
Open On-Chip Debugger 0.11.0
Licensed under GNU GPL v2
For bug reports, read
        http://openocd.org/doc/doxygen/bugs.html
Info : auto-selecting first available session transport "hla_swd". To
override use 'transport select <transport>'.
Info : The selected transport took over low-level target control. The
results might differ compared to plain JTAG/SWD
Info : clock speed 2000 kHz
Info : STLINK V2J14S0 (API v2) VID:PID 0483:3748
Info : Target voltage: 3.203144
Info : stm32f4x.cpu: hardware has 6 breakpoints, 4 watchpoints
Info : starting gdb server for stm32f4x.cpu on 3333
Info : Listening on port 3333 for gdb connections
target halted due to debug-request, current mode: Thread
xPSR: 0x01000000 pc: 0x08000188 msp: 0x20003f24
Info : device id = 0x10036413
Info : flash size = 1024 kbytes
auto erase enabled
wrote 262144 bytes from file nuttx.bin in 11.043253s (23.182 KiB/s)

Info : Listening on port 6666 for tcl connections
Info : Listening on port 4444 for telnet connections


Reset your board
================

Run dmesg to confirm that USB RNDIS device was detected:
========================================================

[ 1099.821480] usb 3-3: new full-speed USB device number 12 using xhci_hcd
[ 1099.972379] usb 3-3: New USB device found, idVendor=584e,
idProduct=5342, bcdDevice= 0.01
[ 1099.972389] usb 3-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1099.972393] usb 3-3: Product: RNDIS gadget
[ 1099.972396] usb 3-3: Manufacturer: NuttX
[ 1099.972398] usb 3-3: SerialNumber: 1234
[ 1099.988952] usbcore: registered new interface driver cdc_ether
[ 1099.990144] rndis_host 3-3:1.0: skipping garbage
[ 1099.990641] rndis_host 3-3:1.0: dev can't take 1558 byte packets
(max 660), adjusting MTU to 602
[ 1099.992089] rndis_host 3-3:1.0 eth0: register 'rndis_host' at
usb-0000:00:14.0-3, RNDIS device, a0:e0:de:ad:ca:fe
[ 1099.992102] usbcore: registered new interface driver rndis_host
[ 1099.994026] usbcore: registered new interface driver rndis_wlan
[ 1099.997001] rndis_host 3-3:1.0 enxa0e0deadcafe: renamed from eth0


Configure your Ubuntu or other Linux distro to share network:
=============================================================

Click in the top right corner of your Ubuntu and go to:

NuttX Ethernet -> Wired Settings

Click in the 'Gear icon' and in the tab "IPv4" select: "Shared to
other computers"

Click on "Apply" button

Disconnect and connect the USB cable to force it to get IP.

Verify which IP your board got:
===============================

$ tail -f /var/log/syslog
...
Jan 28 10:30:24 dev dnsmasq-dhcp[35526]: DHCPDISCOVER(enxa0e0deadcafe)
00:e0:de:ad:ca:fe
Jan 28 10:30:24 dev dnsmasq-dhcp[35526]: DHCPOFFER(enxa0e0deadcafe)
10.42.0.86 00:e0:de:ad:ca:fe
Jan 28 10:30:24 dev dnsmasq-dhcp[35526]: DHCPREQUEST(enxa0e0deadcafe)
10.42.0.86 00:e0:de:ad:ca:fe
Jan 28 10:30:24 dev dnsmasq-dhcp[35526]: DHCPACK(enxa0e0deadcafe)
10.42.0.86 00:e0:de:ad:ca:fe nuttx
Jan 28 10:30:29 dev systemd[1]: NetworkManager-dispatcher.service:
Deactivated successfully.
^C

Ping this IP to confirm it is working:
======================================

alan@dev:~/nuttxspace/nuttx$ ping 10.42.0.86
PING 10.42.0.86 (10.42.0.86) 56(84) bytes of data.
64 bytes from 10.42.0.86: icmp_seq=1 ttl=64 time=0.809 ms
64 bytes from 10.42.0.86: icmp_seq=2 ttl=64 time=0.849 ms
^C
--- 10.42.0.86 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1027ms
rtt min/avg/max/mdev = 0.809/0.829/0.849/0.020 ms

Connect to your board over telnet:
==================================

alan@dev:~/nuttxspace/nuttx$ telnet 10.42.0.86
Trying 10.42.0.86...
Connected to 10.42.0.86.
Escape character is '^]'.

NuttShell (NSH) NuttX-12.0.0
nsh>


BR,

Alan

On 1/28/23, Tim Hardisty <t...@hardisty.co.uk> wrote:
>> On 28/01/2023, 00:09, "Masayuki Ishikawa"wrote:
>
>> Shall we move the discussions to the github issues?
>
> https://github.com/apache/nuttx/issues/8325
>
>
> :)
>
>

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