Hello All- I am working with FreeRTOS + LWIP on a project using PPPoS. I have been able to successfully connect to the network and obtain an IP address after the PPP negotiation using a modem that we have on our embedded device.
Once PPP negotiation completes, on our embedded device, I start my server application to listen for incoming connection on a particular port. Every time I attempt to connect to the server application from a client, I am getting a "Connection reject". I can successfully ping the device and get a ping response. The interesting part is, whenever I set a breakpoint in the code where I except data/traffic to be taken out of the UART to be passed to the lwip stack for processing, I do not hit this breakpoint. I have placed a logic analyzer on the UART line and I do not see data when a PPP session has been established. However, during the ppp negatation process, this path is the only way data gets to the LWIP stack and it is responding. My hypothesis is that the modem is receiving the traffic and processing it internally instead of passing it through to the UART so that the lwip stack can do the processing. In view of the above, is there an option in LWIP that needs to be set for PPP so that the modem passes data transparently? Are there some configuration for LWIP that I need to set? On linux, I see these settings in the chat scripts. Are there some kind of lwip equivalent that needs to be set? asyncmap 0 noauth defaultroute usepeerdns local debug updetach `Edman -- Sent from: http://lwip.100.n7.nabble.com/lwip-users-f3.html _______________________________________________ lwip-users mailing list lwip-users@nongnu.org https://lists.nongnu.org/mailman/listinfo/lwip-users