GeoDesy GD-Geo20-TP - Manual (Page 56)

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9 Appendix
9.1 Resetting Device to Factory Defaults
Device has the capability of being reset to defaults by pinging the device with a certain packet size when the
radio is booting. During the startup of the device, when the drivers of the Ethernet interfaces are loaded, the
discovery daemon is started. The daemon suspends startup process for 3 seconds and waits for ICMP
"
echo request " packet of length 369 bytes. If the packet received, the discoveryd resets 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:
 Linux OS: AA:BB:CC:DD:EE:FF
 Windows OS: AA-BB-CC-DD-EE-FF
Step 5. Start ping the device:
For Linux users: ping <IP address> -s 369
For Windows users: ping <IP address> -l 369 -t -w 0.2
Step 6. Power up APC device and wait about 30sec or more (depending on device hardware).
Step 7. Stop pinging the device, and let the device boot as usual. The device should start up with
factory default settings.