Write,Read and Ping data using GPRS

Legacy Open AT
1

Hi all,

i’ve managed to connect to the Internet GPRS using my SIM card. but there is some problem occured regarding the receiving,sending and pinging through GPRS network. i’ve managed to connect to the GPRS system, the sign is i got the IP number that was allocated by the provider. but i couldn’t make anything out of this connection. there are 3 problems that i need to solve. but this time i only want to consult about the ping function (solve one problem at a time).

i made the PingCreate Socket. And i want to ping google.com the IP address is 64.233.189.99.
and the ping socket was created and ICMP was sent. i checked it using TMT.

this is the result :
Trace NET 16 IP-OUT 10.33.81.91 > 64.233.189.99 pr:1 len:92 id:13 off:0
Trace NET 16 IP-INP 10.33.81.91 < 64.233.189.99 pr:1 len:84 id:12 off:0
Trace NET 17 ICMP-INP 10.33.81.91 < 64.233.189.99 Echo Reply (0)
Trace NET 22 RWIP-INP Socket found

and this is the result in my TE
this is inside the PingHandler
[WIPEV] WIP_CEV_PING @ PING 0x180c6594 (seq=0, time=1000ms, timeout=false)

this is inside the PingHandler
[WIPEV] WIP_CEV_PING @ PING 0x180c6594 (seq=1, time=0ms, timeout=true)

this is inside the PingHandler
[WIPEV] WIP_CEV_PING @ PING 0x180c6594 (seq=2, time=0ms, timeout=true)

this is inside the PingHandler
[WIPEV] WIP_CEV_PING @ PING 0x180c6594 (seq=3, time=1000ms, timeout=false)

IP address -> 10.33.81.91 ===> this is my Modem’s IP address

the question is, what is the difference between Timeout = false and timeout = true?
is it reliable to make a server out of my modem if my ping result is like above?
what is the meaning of socketfound in TMT trace result?
why i couldn’t ping my modem’s IP using another computer (PC Desktop connected to the internet)?

thank you for the reply or advice to help me solve these questions.

regards,
Edy2

2

That’s a Private IP address - so it can’t be accessed from outside the GPRS network.

See above!

Note that some GSM/GPRS operators block PINGs…

3

There could be a problem with your sim card. Some providers only allow HTTP. It is also possible that you internet connection is blocked or canceld if you try to ping or ftp.