legacy file system), check the contents of the 'passwd' file. To do this, go to Linux console by executing enable and
then shell command, and edit the file using embedded editor 'joe' (use arrow buttons to move the cursor; exit
the editor without saving: <CTRL^C>, exit and save changes: <CTRL^(KX)>): joe /tmp/etc/passwd. Add 'x' character
into admin user string.
File contents before the edit: admin::0:0: admin:/ admin:/bin/sh.
File contents after the edit: admin:x:0:0: admin:/ admin:/bin/sh.
10. Save settings using 'save' command.
11. Restart the gateway using 'reboot -f' command.
6.5 Reset the device to the factory settings
6.5.1 Reset the configuration to factory default
Press and hold the 'F' function button located on the front panel of the device from 10 to 14 seconds. Hold the
button pressed until 'Status' indicator flashes (flashed green and red rapidly) and 'Alarm' indicator solid red , then
release the button to avoid another reboot of the device. After releasing the button configuration will be reset and
device will restart. After loading, the device will be accessible by IP address 192.168.1.2 via WEB interface (user—
admin, password—rootpasswd), or Telnet/SSH (username—admin, password is not defined). Access via RS-232
console in this mode, just as for Telnet, will be unprotected (username—admin, password is not defined).
6.5.2 Reset the configuration to factory default using 'Safemode'
You can switch to 'Safemode' with two ways:
1. Turn the device off. Press and hold the 'F' function button located on the front panel of the device. While
holding the button, turn the power on. Hold the button pressed until indicators will start flashing: 'Status'
indicator will flash green and red rapidly, 'Alarm' indicator will flash red, then release the button to avoid
another reboot of the device.
2. Press and hold the 'F' function button located on the front panel of the device over than 15 seconds. First,
device factory default reset indication will appear - 'Status' indicator will flash green and red rapidly,
'Alarm' indicator will be solid red. Don't release the button to avoid factory reset of the device. Then, all
indicators will go outand device will start rebooting. Hold the button pressed until indicators will start
flashing: 'Status' indicator will flash green and red rapidly, 'Alarm' indicator will flash red, then release the
button to avoid another reboot of the device.
TAU-72.IP/TAU-36.IP will switch to 'safemode'. In this mode, the device will be accessible by IP address
192.168.1.2 via WEB interface (user—admin, password—rootpasswd), or Telnet (username—admin, password is
not defined). Access via RS-232 console in this mode, just as for Telnet, will be unprotected (username—admin,
password is not defined). Configuration won't be reset to factory default.
Reset the configuration to factory default:
1. Connect the null modem cable to COM port of a PC and TAU module 'Console' port (if configuration
is performed via COM port), or connect the computer to the module Ethernet port using Ethernet
cable (if configuration is performed via Telnet/SSH).
2. Run the terminal application.
3. Configure COM port connection: data rate: 115200, data format: 8bit w/o parity, 1 stop bit, w/o
flow control; or telnet connection: 192.168.1.2, port 23.
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