On Fri, Apr 05, 2019 at 10:27:41AM +0000, rahul.mane . wrote:
> Hello ,
> I want to use LWIP stack (2.0.2) with pppos.I have NXP MC5748 board wi
> SIM800c interface with one UART channel.I have use following AT
> commands to configure GSM module:
> I am successfully getting following data from GSM module.
> status_cb: Connected our_ipaddr = 100.95.137.40 his_ipaddr = 192.168.254.254 netmask = 255.255.255.255 dns1 = 184.108.40.206 dns2 = 220.127.116.11 Next step, I am trying to ping 18.104.22.168
> But I am getting Timeout error
> lwip_socket(PF_INET, SOCK_RAW, 1) = 1lwip_sendto(1, data=0x40040728, short_size=40, flags=0x0 to=22.214.171.124 port=42405ping: send 126.96.36.199. lwip_recvfrom(1, 0x40008cb8, 64, 0x0, ..)2. lwip_recvfrom: top while sock->lastdata=0x04. lwip_recvfrom: netconn_recv err=-3, netbuf=0x05.lwip_recvfrom(1): buf == NULL, error is "Timeout."!
> Is there any step i am missing to configure ?
> For more information I have attached log file
I guess it is because checksums are disabled. Could you try enabling
CHECKSUM_GEN_* and CHECKSUM_CHECK_* options ?