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RPC · 2025-01-21

Hello, I have a question about LWIP functionality.I'd like to know if it's possible to redirect a tcp request received on the pppos interface, to a device that is connected onto the ethernet interface and listening on the desired port.Thanks in advan...

RPC · 2024-12-19

Hello everyone,I'm using Netconn snmp over freertos on my project and I found an issue when using 2 netif interfaces. The problem is that when I receive udp messages, the response is always routed to the default netif despite having the LWIP_HOOK_IP4...

RPC · 2024-10-24

Hello everyone,Today I'm writing to you because I'm trying to implement a PPPoS connection over the USB CDC Host of a STM32H745. The modem I'm trying to connect to is a SIM7500 of SimCom.I managed to establish the connection between the modem and the...

RPC · 2024-08-29

Hi, I am trying to use a Nucleo-H745ZIQ to implement the USB CDC HOST functionality over the USB OTG FS port. I succeeded to do it and make it work if the device connected to my board is another STM32 board which is configured as an usb device, and t...

RPC · 2025-01-07

Hi again, After some debugging, I changed 1 thing that made udp working even when I only have the second interface pppos working.On the LWIP_HOOK_IP4_ROUTE_SRC function, in addition to check if the ip matches one of the interfaces. In case of not bei...

RPC · 2025-01-03

Hello @STea , First of all I wanted to thank you for the response.I checked the lwip files and seems like the only file that I had tu update was the auth.c from middlewares/ppp and I updated it.Seems like udp works properly if both interfaces are up....

RPC · 2024-11-28

Hi again, I'm having a problem receiving snmpv3 frames.I do receive them but they are not well processed and seems like they are being returned on the default net interface.I tried setting the pppos as default interface but still the communication is...

RPC · 2024-11-14

Hello again, I managed to solve the issue mentioned before:Seems like the USB_CDC_Class if its FS(Full Speed) the maximum size that can receive at once is 64 bytes, so bigger frames than that were coming fragmented.The solution was to detect the begi...

RPC · 2024-11-12

Does anyobody knows why I can process the tcp requests but not the http requests and half of the messages are dropped due to bad FCS?Also, I can send pings of 16 bytes or less, but pings bigger than that are again being dropped.Did anybody had this p...

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IP Forwarding

UDP routing not working as expected with 2 netif interfaces

PPPos Lwip Issue

STM32 USB HOST cannot get line configuration of device

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