01 ERL3 Basic Setup

Factory Defaults and  Hard Reset

The GUI and console (soft) reset commands, return the device to default but do not clear the internal storage of user data.  A firmware upgrade may clear some user data but should leave the config folder intact.

A hard reset removes all user data from the device.

To perform a hard reset on the ERL3

1. Press the Reset button on the front panel (using a pin).
2. Keep the Reset button pressed while the Eth2 LED flashes orange.
3. When the Eth2 LED turns solid orange, release the Reset button.
4. The device will reboot.

Device Access Defaults

• Eth0 IP: 192.168.168.1 
• Protocols: HTTPS 443, SSH 22
• Serial port: 115200, 8, n, 1 (no flow, no status)
• user: ubnt
• pass: ubnt

Operational modes

Logging into the device by the serial console or SSH produces a bash like prompt with access to the Linux shell.  Many Linux commands are available but the router access is essentially read only.  The shell does not provide tab completion or auto completion of any kind.  Keywords, commands and parameters must be typed in full. 

Typing [?] a question mark will list the available router commands.

Useful shell commands

• show interfaces
• show ip route
• show ip forwarding
• show configuration
• show tech-support
• cat /config/config.boot

Configuration mode

The device configuration is edited by entering the configure command.

Configuration mode can not be left while changes are outstanding. 

• To exit and discard changes  use,  exit discard
• To save changes to the config.boot file use. save
• To commit changes to the running configuration use, commit then exit

SET and DELETE Command

The device is configured in real time using the set and delete commands.  The configuration is arranged in a tree and node fashion.  The question mark [?] key often provides a hint to the options available in the configuration path, but not always.

To enable IP forwarding between interfaces

set system ip forwarding on

To disable the NTP service

delete service ntp

Exit Configuration Mode

Configuration mode can not be left while changes are outstanding. 

• To exit and discard changes  use,  exit discard
• To save changes to the config.boot file use. save
• To commit changes to the running configuration use, commit then exit

Next, Minimum Configuration
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