STM32MP157-DK2 not connecting to ethernet

[Bogdan]

Hello,

i have a problem when tring to establish a ethernet connection with the STM32MP157-DK2 board.

Windows 10 -64bit system, no firewall, no antivirus. DHCP enabled.

Tried with cross & straight CAT6 ethernet cable.

I cannot establish a SSH connection with the board trough putty on port 22.

The yellow LED from the ethernet connector is blinking, the GREN led is off.

In the board "netdata perf monitor" i have no ethernet connection.

I wonder what i am missing here?

Here is the ifconfig

root@stm32mp1:~# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:80:E1:42:55:EF
          inet6 addr: fe80::280:e1ff:fe42:55ef/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:66 errors:0 dropped:0 overruns:0 frame:0
          TX packets:48 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:9472 (9.2 KiB)  TX bytes:8923 (8.7 KiB)
          Interrupt:60 Base address:0x8000
 
lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:264 errors:0 dropped:0 overruns:0 frame:0
          TX packets:264 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:16800 (16.4 KiB)  TX bytes:16800 (16.4 KiB)
 
usb0      Link encap:Ethernet  HWaddr EE:66:75:77:9F:02
          inet addr:192.168.7.2  Bcast:192.168.7.255  Mask:255.255.255.0
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
 
root@stm32mp1:~#

[Bogdan]

It seems to work, only when i have the cable plugged into the router.

Tried before to connect the board to 2 laptops without success...

How to configure eth0 to run ipv4 with dhcp enabled?

noticed /etc/network/interface file is missing

[OlivierK]

​Hello,

Did you visit the ST wiki page: https://wiki.st.com/stm32mpu/wiki/How_to_configure_ethernet_interface ?

It shows you how to configure eth0 /ipv4 with DHCP enabled.

BR

O.

[Bogdan]

Hello

i manually configured a ip, on the pc side dhcp is enabled.

After doing this, i still can't connect via ssh, not even ping ..,

Is it posible to disable ipv6? And how to doit?

root@stm32mp1:~# ifconfig eth0 192.168.100.97
root@stm32mp1:~# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:80:E1:42:55:EF
          inet addr:192.168.100.97  Bcast:192.168.100.255  Mask:255.255.255.0
          inet6 addr: fe80::280:e1ff:fe42:55ef/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:99 errors:0 dropped:0 overruns:0 frame:0
          TX packets:54 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:11100 (10.8 KiB)  TX bytes:10386 (10.1 KiB)
          Interrupt:60 Base address:0x8000
 
lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:264 errors:0 dropped:0 overruns:0 frame:0
          TX packets:264 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:16800 (16.4 KiB)  TX bytes:16800 (16.4 KiB)
 
usb0      Link encap:Ethernet  HWaddr D6:62:9A:22:E4:74
          inet addr:192.168.7.2  Bcast:192.168.7.255  Mask:255.255.255.0
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
 
root@stm32mp1:~# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.7.0     *               255.255.255.0   U     0      0        0 usb0
192.168.100.0   *               255.255.255.0   U     0      0        0 eth0

[OlivierK]

Hi,

you said that via a Router all is correct with DHCP enabled, which is the correct behaviour. Did you try to disable DHCP using a p2p connexion?

I would recommend USB/Ethernet bridge for a P2P connexion. Just plug a USB TypeC cable to the OTG USB DK2 board and type ifconfig again, then manually assign this bridge to a static IP address :ifconfig <bridgename> 192.168.7.1 netmask 255.255.255.0 . Then you should be able to ping the board at 192.168.7.2,

[Bogdan]

Hello Oliver,

i tried the followings

• dhcp enabled on the PC side
• power up the DK2 board
• ethernet & usb otg cable connected
• ifconfig eth0 192.168.7.22 netmask 255.255.255.0
• on the pc when ping 192.168.7.22 i get time out response

tried the same with the usb otg connection, and get ping timeout

To be honest its my first approach with a linux embedded system, didn't thought to be such challenging to do a network connection.

[OlivierK]

​Hello Anton,

Make sure the DK2 board boot pins are set so that you could see a demo on target display screen.

With the Ethernet/USB bridge (using USB type C cable), you should have the following network setup (or similar) from the host side and board side. I've highlighted the bridge which appears when you plug the USB Type C cable.  I run linux on a Linux VM on Windows 10.

[Bogdan]

Hello Oliver,

thanks for your patience,

i finally managed to establish a ssh connection between my pc and the dk2 board trough USB-C connection.

I setup 192.168.7.1 static ip for my usb network connection on the PC side.

Then i was able to ping 192.168.7.2 board, also ssh worked via putty.

[Bogdan]