ESR Series Routers Operation Manual
33
6
FIRMWARE UPDATE
6.1
Updating firmware via system resources
To update the firmware, use any of the following servers: TFTP, FTP, SCP. Router firmware
files obtained from the manufacturer should be allocated on the server.
The router stores two copies of the firmware. To ensure the reliability of the firmware
update procedure, only the copy that was not used for the last device startup is available
for the update.
Update via system resources is available in version 1.0.3.69 and later. You may update the
firmware from the earlier versions using the instructions located in Section 6.2.
To update the firmware for the device running the operating system, follow procedure described
below.
1.
Prepare the selected server for operation. You should know the server address; also firmware
distributive file should be loaded onto the server.
2.
The router should be prepared for operation according to the documentary requirements.
Router configuration should allow for data exchange with the server via TFTP/FTP/SCP and
ICMP protocols. At that, you should take into account the server inherence to the router
security zones.
3.
Connect to the router locally via Console port or remotely via Telnet or SSH.
Check the server availability for the router using
ping
command on the router. If the server is
not available, check the router settings and the status of the server network interfaces.
4.
To update the router firmware, enter the following command. Specify IP address of the server
being used as
<server>
parameter. For updates that utilize FTP or SCP server, you should enter a
username (
<user>
parameter) and a password (
<password>
parameter). Specify the name of
the firmware file loaded onto the server as
<file_name>
parameter. When the command is
executed, router will copy the file into its internal memory, perform data integrity check and
save it into non-volatile memory.
TFTP:
esr#
copy tftp://<server>:/<file_name> system:firmware
FTP:
esr# copy ftp://[<user>[:<password>]@]<server>:/<file_name>
system:firmware
SCP:
esr#
сору
scp://[<user>[:<password>]@]<server>://<folder>/<file_name>
system:firmware
For example, let's update basic firmware via SCP:
esr#
сору
scp://adm:password123@192.168.16.168://home/tftp/firmware
system:firmware
5.
To start the device with the new firmware version, you have to switch the active image. With
show bootvar
command, locate the image number, containing updated firmware.
