Looks like we've got someone else to blame... So you have a modem vía USB... you don't have PPP over serial, you have PPP over something over USB.
What is it, VCP ? with host drivers written by... (you ?) that you know works OK because... (?) And, btw, the USB hardware is OK ? (USB transfers are CRC "protected" but...) I guess you should see why there are two packets when there is a bad fcs. It is the only moment when it happens. Looks like "someone" got interrupted and didn't finish a transfer, lost state, and then resumed with some missing bytes in the middle, causing an fcs failure. Check your USB statistics, maybe transfer errors are firing something unexpected. _______________________________________________ lwip-users mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/lwip-users
