DART 200 CDPD Modem User’s Guide

F DART AT Command Set

Clearing BLOCKED status

When the Service Provider key is BLOCKED and an AT^P+ command is issued, the modem waits 30 seconds before responding with the BLOCKED response. This is intended to impose a barrier to any computer-generated attempt to determine the key value by hackers. Furthermore, at this point only the Master Key clears the BLOCKED condition.

To clear the BLOCKED condition the AT^P+ command is used with the Master Key; the default Master Key value is 34895400. This re-enables the Service Provider key until the modem is power cycled or reset and the BLOCKED condition is restored.

To permanently clear the blocked condition an AT^C command must be issued following the AT^P+<master key>. Refer to Chapter 3, CDPD Security Features, Modem security management, for more information.

Table F-6. Service provider commands beginning with caret (^)

^A Set IP Address of DART Modem

Loads an IP Address into one of the 10 slots (numbered 0 - 9) in the DART’s NEI list.

This command also resets the authentication credentials (ASN - sequential and ARN - random) associated with the selected slot.

Format:

AT^A<s>/<n>

AT^A-n

<s> =IP Address of the modem followed by /n where <n> is the position in the modem’s NEI list where the IP Address is stored. Valid values for n are 0 to 9 with the default being 0.

The form of the IP address is nnn.nnn.nnn.nnn/n, for example,

155.174.21.100/5.

This form of the AT^A command is used to remove the IP address in slot n of the NEI list. The ASN and ARN for slot n is reset to 0.

Result codes:

 

OK

Valid argument

ERROR

Invalid argument

NOT ENABLED

Modem is not in service provider mode

^C Clear Blocked Status

Clears the blocked status of the PIN, the PIN Unblocking key, and the Service Provider key. It also sets their respective entry error counters back to 0.

Format:

 

AT^C

Clear the blocked status of all keys and reset their error counters

Result codes:

 

OK

Valid argument

NOT ENABLED

Modem is not in service provider mode

 

 

Sierra Wireless, Inc.

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Sierra Wireless DART 200 CDPD Modem manual Set IP Address of Dart Modem, Clear Blocked Status