DE910-DUAL AT commands reference guide
80392ST10102A Rev.2 – 2012-07-03
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved
page 195 of 261
#ICMP – ICMP Ping Support
AT#ICMP=<mode>
Set command enables/disables the ICMP Ping support.
Parameter:
<mode>
0 - disable ICMP Ping support (default)
1 - enable firewalled ICMP Ping support: the module is sending a proper
ECHO_REPLY only to a subset of IP Addresses pinging it; this subset of
IP Addresses has been previously specified through
#FRWL
(see)
2 - enable free ICMP Ping support; the module is sending a proper
ECHO_REPLY to every IP Address pinging it.
AT#ICMP?
Read command returns whether the ICMP Ping support is currently
enabled or not, in the format:
#ICMP: <mode>
AT#ICMP=?
Test command reports the supported range of values for the
<mode>
parameter.
#PING – Ping Request
AT#PING=<IPaddr>
[,<retryNum>[,<len>
[,<timeout>
[,<ttl>]]]]
Set command sends a Ping Echo Request messages and to receive the
corresponding Echo Reply.
Once the single Echo Reply is received a string like that this is displayed:
#PING:<replyId>,<IpAddress>,<replyTime><ttl>
<replyId>
- Echo Reply number
<IpAddress>
- IP address of the remote host
<replyTime>
- Time, in 100ms units, required to receive the response
<ttl>
- Time to live of the Echo Reply message.
Parameter:
<IPaddr>
- Address of the remote host. This parameter can be either:
- any valid IP address in the format:
“xxx.xxx.xxx.xxx”
- any host name to be solved with a DNS query
<retryNum>
- Number of Ping Echo Request to be sent:
1-64 (default 4)
<len>
- Length of Ping Echo Request message
32-1460 (default 32)
