OPTOKON EDFA User Manual page 20

You can use also JOE editor for settings ETH0 as below
For JOE editor HELP press
For SAVE and EXIT JOE editor press
For EXIT without SAVE JOE editor press
To apply the change to the system the execute command shall be used
WARNING: User has to heed for remote execute this command. After running this
command the network interface card is not available and if any mistake is in the
configuration file the network connection will not work.
joe /etc/network/interfaces
ctrl-k h
ctrl-k x
ctrl-c
/etc/init.d/networking restart
EDFA optical amplifier – user manual
20