Hi list, I'm testing a LTE module with lwIP and found always got bad fcs as below. I dump the received data below: Is there anything wrong in the received data?
sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]␍␊ pppos_write[0]: len=26␍␊ pppos_input[0]: got 17 bytes␍␊ 7e ff 3 80 21 1 1 16 3 6 81 6 83 6 6e db 7e ␍␍␊ pppos_input[0]: Dropping bad fcs 0x4114 proto=0x8021␍␊ pppos_input_drop: pbuf len=13, addr 0x2000bfc0␍␊ sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]␍␊ pppos_write[0]: len=26␍␊ pppos_input[0]: got 17 bytes␍␊ 7e ff 3 80 21 1 1 16 3 6 81 6 83 6 6e db 7e ␍␍␊ pppos_input[0]: Dropping bad fcs 0x4114 proto=0x8021␍␊ pppos_input_drop: pbuf len=13, addr 0x2000bfc0␍␊ sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]␍␊ pppos_write[0]: len=26␍␊ pppos_input[0]: got 17 bytes␍␊ 7e ff 3 80 21 1 1 16 3 6 81 6 83 6 6e db 7e ␍ pppos_input[0]: Dropping bad fcs 0x4114 proto=0x8021 // another boot sent [IPCP ConfReq id=0x1 <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]␍␊ pppos_write[0]: len=20␍␊ pppos_input[0]: got 15 bytes␍␊ 7e ff 3 80 21 1 1 10 81 6 83 6 2d 61 7e ␍␍␊ pppos_input[0]: Dropping bad fcs 0xa6ff proto=0x8021 sent [IPCP ConfReq id=0x1 <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]␍␊ pppos_write[0]: len=20␍␊ pppos_input[0]: got 15 bytes␍␊ 7e ff 3 80 21 1 1 10 81 6 83 6 2d 61 7e ␍␍␊ pppos_input[0]: Dropping bad fcs 0xa6ff proto=0x8021 sent [IPCP ConfReq id=0x1 <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]␍␊ pppos_write[0]: len=20␍␊ pppos_input[0]: got 15 bytes␍␊ 7e ff 3 80 21 1 1 10 81 6 83 6 2d 61 7e ␍␍␊ pppos_input[0]: Dropping bad fcs 0xa6ff proto=0x8021 Thanks, Axel _______________________________________________ lwip-users mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/lwip-users
