Clearing The Flash; Clearing Eeprom; Telnet Access - Comtrol DeviceMaster LT User Manual

Clearing the Flash

Clearing the Flash

Clearing EEPROM

Telnet Access

134 - Troubleshooting and Technical Support
The EEPROM memory is programmed with a number of default values. The
values that you can modified are shown in the following table.
Parameter
Default Value
Name
Authentication None
192.168.250.25
IP Address
0
IP Mask 255.255.0.0
IP Gateway 192.168.250.1
Password Blank
Telnet Enable
Telnet Timeout 300 sec.
Bootloader
15 sec.
Timeout
SNMP Enable
SSL† Disable
† SSL is a security feature available with SocketServer v7.00 and later.
The flash only has program binaries. There is no user data stored in the flash. If it
is necessary to erase the binaries, the default application (SocketServer.bin) can be
erased using the fis init command from the DeviceMaster LT using a serial
connection, that is Port 1 through a null-modem cable and a COM port.
See Establishing a Serial Connection
RedBoot and enter fis init -f at the RedBoot prompt.
There is no easy way to remove the bootloader binary. Removal of the bootloader
binary would leave the DeviceMaster LT inoperable and require that it be
returned to the factory to be reprogrammed.
The user configurable values in the EEPROM, can be accessed and set in three
different ways. All of the values can be set using a serial connection (Port 1 with a
null-modem cable connected to a COM port). Most of the values can be accessed by
using the Web Server (SocketServer or NS-Link equivalent) or telnet. Refer to the
appropriate procedure for your situation:
• Telnet Access
• Serial Port Access on Page 135
• Web Server Access on Page 135
Use this procedure to access the DeviceMaster LT configuration through telnet,
Note: To reset authentication, see
RedBoot Command Overview
1. Open a telnet session, enter the DeviceMaster LT IP address. If using
Windows, open a Command window and type telnet [ip_address].
Note: Press the Enter key if you have not programmed a password or use the
password previously configured. The DeviceMaster LT does not come
pre-programmed with a password.
2. To return the IP address to the default value, type ip 192.168.250.250 255.255.0.0
192.168.250.1 and press Enter.
3. To reset the password, type password and press Enter.
4. To reset the telnet timeout value, type teltimeout 300 and press Enter.
User Web or
Configurable Telnet
Yes No
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
on Page 100 (Steps 1
Serial Port Access on Page 135 or use the
on Page 107.
DeviceMaster LT User Guide: 2000586 Rev. B
Console
Port
Port
No Yes
Yes Yes
Yes Yes
Yes Yes
No Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
through 6) to access