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Configuration modes
ELSA MicroLink Cable
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TFTP
With TFTP you can use the writeflash command to install new firmware. To send a new
firmware version which, for example, is in the 'LC_1000U.130' file, to a router with the
IP address 194.162.200.17, you would enter the following command under Windows NT
for example:
tftp -i 194.162.200.17 put lc_1000u.130 writeflash
This command sends the corresponding file to the router using the writeflash
parameter. Binary file transfer must be set for TFTP. However, many systems have the
ASCII format preset. This example for Windows NT shows you how to achieve this by
using the '-i' parameter.
The device is booted up following a successful firmware upload and this activates the
new firmware switch directly. If an error occurs during the upload (write error in the flash
ROM, TFTP transmission error or similar) the device also boots and FirmSafe activates
the previous firmware. The configuration remains in operation.
It will only be possible to configure the device locally, i.e. via the outband interface, if it
is switched off during TFTP upload. The device will expect a firmware upload via the
serial port when it is switched back on.
You should therefore be sure to carry out a firmware upload only when you have a secure
(stable) connection.
With TFTP, other configuration commands can also be executed. The syntax is best
demonstrated with the following examples:
tftp 10.0.0.1 get readconfig file1 : Reads the configuration from the device with the
address 10.0.0.1 and saves it as file1 in the current directory
tftp 10.0.0.1 put file1 writeconfig : Writes the configuration from file1 to the device
with the address 10.0.0.1
tftp 10.0.0.1 get dir/status/verb file2 : Saves the current connection information in
file2
Configuration using SNMP
General
The Simple Network Management Protocol (SNMP V.1 as specified in RFC 1157) allows
monitoring and configuration of the devices on a network from a single central instance.
This instance is commonly termed the“Manager” while the devices become“Agents”.
The structure permitted for SNMP information exchange is relatively simple. A manager
can access all SNMP-capable devices and services (agents) on the network. The access
rights are controlled via“Communities”.