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Associate III
May 23, 2025
Solved

How to see data on Wireshark for stm32f407

  • May 23, 2025
  • 2 replies
  • 467 views

HI

Can you help me how I can see data on wireshark. I have connect LAN cable to 8742 and which is connected to stm32 via RMII wire and board is connected to CPU via USB .

First I am unable to see my etherent device name on wireshark.

second How I can see data on wireshark. kindly help me.

B.R

Ashish

Best answer by LCE

You need to know:

- the PC's ethernet interface's name, then select that

- your STM32's IP address, simply watch the stream, or filter for that IP address

 

2 replies

LCE
LCEBest answer
Principal II
May 23, 2025

You need to know:

- the PC's ethernet interface's name, then select that

- your STM32's IP address, simply watch the stream, or filter for that IP address

 

Ash1Author
Associate III
May 26, 2025

HI

I can see now. Thank you so much

B.R

Ashish

Andrew Neil
Super User
May 23, 2025

Wireshark just sees Ethernet (or whatever) - it neither knows nor cares anything about STM32.

So there is nothing specific to STM32.

So just follow the standard Wireshark documentation:

Wireshark User Guide: https://www.wireshark.org/docs/wsug_html/ 

https://www.wireshark.org/docs/

https://www.wireshark.org/learn

https://ask.wireshark.org/questions/

This does, of course, require that you have a basic understanding of networking ...

 

Try a general internet search for "Wireshark beginners"...

 

 


@Ash1 wrote:

I have connect LAN cable to 8742 ...


You mean a Microchip LAN8742 Ethernet Transceiver: https://www.microchip.com/en-us/product/lan8742a ?

 


@Ash1 wrote:

... and which is connected to stm32 via RMII wire and board is connected to CPU via USB .


What do you mean by "CPU" here ?

A diagram would help.

Maybe also some good, clear photographs of your setup

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.