Quick Installation Guide

APC Recovery

The APC Propeller 2 and APC Propeller 5 units have following recovery options:

 Reset button (refer at the Figure 2 – Overview). Press and hold the Reset button

using a pen or a paper clip for 1 second to reboot the device; press and hold the

Reset button for more than 5 seconds to set the device to factory defaults.

 Resetting to defaults via Ping (follow the instructions on Resetting APC via Ping

section).

 TFTP recovery mode. Power-off the unit, then press and hold the Reset button

(refer at the Figure 2 – Overview), power-on the unit and hold Reset button for

more than 5 seconds – the APC unit will boot in recovery mode.

Resetting APC via Ping

APC Propeller 2 and APC Propeller 5 have the capability of being reset to defaults by

pinging the device with a certain packet size when the device is booting. During the

startup of the device, when the drivers of the Ethernet interfaces are loaded, the reset

program is started. The reset program suspends startup process for 3 seconds and

waits for ICMP "echo request" packet of length 369 bytes. If the packet received, the

reset daemon sets the device to default configuration.

It is recommended to connect PC to the device via switch, as

depending on PC OS settings, the ARP table might be flushed during

wired link status change (connecting the device that will be reset).

Steps to reset to default settings:

Step 1. Power off the APC device.

Step 2. Obtain the device MAC address.

Step 3. Connect a PC to the same physical subnet as the device.

Step 4. Execute 'arp -s' command to assign the IP address (IP address

should be from the same subnet as PC) to the device MAC address:

arp -s <IP address to assign> <device MAC address>

Note that syntax of MAC address differs depending on OS:

For Linux users: AA:BB:CC:DD:EE:FF

For Windows users: AA-BB-CC-DD-EE-FF

Step 5. Start pinging the APC device:

For Linux users: ping <IP address> -s 369

For Windows users: ping <IP address> -l 369 -t -w 200

Step 6. Power up device and wait about 30sec or more (depending on device

hardware).