Frequently Asked Questions
Default IP Address
The default IP address is 192.168.2.66 with a subnet mask of 255.255.255.0
Default administrator login
The default username is admin and the default password is admin01
Resetting to defaults via Ping
Devices that are missing reset to factory defaults settings button (or due to housing button is not accessible without disassembling the housing first) need functionality that allows easily reseting device to default settings.
During startup of a device, when drivers of 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 use a simple switch (without routing) because Windows loses connection with device during the device reboot.|
Steps to reset to default settings:
Step 1. Power off the 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>
Step 5. Start pinging the 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 (depends from device hardware).
Step 7. Stop pinging the device, and let the device boot as usual. Device should come back with defaults settings.
Uploading firmware Via SSH
To upload firmware via SSH, please see wiki article: http://ligowave.com/wiki/index.php/How_To_Update_Firmware_via_SSH
Antenna Connector Layouts
Connector diagrams for multiple radio devices:
Recommended ACK Timeout Setting
802.11 radios have an ACK Timeout setting (acknowledgement timeout) where if the transmitting radio doesn’t get a response from the receiving radio within a certain timeframe it will assume the packets have been lost and retransmit the packets. If you have long range links, the time to send a message and then get a response back will increase and may exceed the standard ACK timeout settings. On long-range links, increasing this setting will reduce retransmits and improve the quality of the link. However, at the same time, if you have short links and your ACK settings are too high, if a packet gets lost in transit, the sender will wait longer to retransmit than usual which will degrade the link unnecessarily.
|The formula to determine a baseline ACK setting is: ACK = 23 + (Distance in meters / 150)|
|This is just a guideline, and adjustments may need to be made depending on environment.|
ACK Timeout Lookup Table
RSSI Values Explained
For an explanation on RSSI Values and what to look for, see our WIKI entry: