INSYS WLAN 2.1, Manual

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Overview AT Commands INSYS WLAN serial 2.1
Command Description
AT#KEEP=<n>
TCP/IP Keep Alive
This timer enables the monitoring of an existing TCP/IP connection when no
data is transferred. When 5 consecutive monitoring packets are not answered,
the connection is terminated and re-established, if necessary (in leased line
mode, see
AT&L
).
AT#KEEP=1..255
Time periods between two monitoring packets in
10 second units
AT#KEEP=0
No monitoring packets (default)
The setting can be queried with
AT#KEEP?
.
This setting is immediately stored in the permanent memory (independent
from the command
AT&W
). It will only take effect after a restart.
AT#KEY<n>[*]=<n>
Define WEP keys
Enter the WEP keys 0..3 as a series of hexadecimal digits (0..9,A..F) in quotes.
After every two digits an underscore follows as separator.
For 64 bit keys, 10 hexadecimal digits are required; for 128 bit keys 26 hexa-
decimal digits.
Factory setting: Empty keys - all values are set to "0" -
AT#KEY0=”11_12_13_14_15_16_17_18_19_1a_1b_1c_1d”
AT#KEY1=”11_12_13_14_15_16_17_18_19_1a_1b_1c_1d”
AT#KEY2=”11_12_13_14_15_16_17_18_19_1a_1b_1c_1d”
AT#KEY3=”11_12_13_14_15_16_17_18_19_1a_1b_1c_1d”
A single WLAN is determined by joint codes (SSID) and WEP keys.
WEP encryption is switched on via
AT#WEL
. The key length is determined via
AT#WEL
. The active WEP key is selected with
AT#WKY
.
Masking of WEP keys:
If '*' is entered after
AT#KEY<n>
, the WEP key cannot be read in the configura-
tion.
Example:
AT#KEY0*=”11_12_13_14_15_16_17_18_19_1a_1b_1c_1d”
This setting is immediately stored in the permanent memory (independent
from the command
AT&W
). It will only take effect after a restart.
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