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How To Use AirRouter Ports

How To Use the AirRouter Ports

Here is a picture of how you can use the AirRouter or AirRouter HP ports.
​The lower power AriRouter is powered by a wall wart and barrel connector, while the higher power AirRouter HP is powered by the PoE injector.

​Please note that if you want to connect the AirRouter HP to the Internet, to to another network, you must:

  1. Connect the PoE port of a PoE injector to the WAN port of the AirRouter. This supplies power to the AirRouter and enables connectivity to the other port (LAN) on the PoE injector.
  2. ​Connect the LAN port on the PoE injector to your Internet or other network router.

​Please also note that Port 4 on the AirRouter is only used for Device-to-Device (DtD) connections to another AREDN node.


Add Forum Pictures

How To Add Pictures to Your Forum Posting

To insert pictures in your Forum posting -
Click on the picture symbol in the edit tools bar - this symbol is the 8th from the far right or the 12th symbol to the right of the word "Source" in the top tool bar.
That open up an Image Properties dialog box
Click on Browse Server
That opens up a File Browser window
Click on Upload at the top left in the File Browser window, then select the picture file on your computer that you want to insert.
After the picture file is uploaded, click Insert File. That will put the picture into your posting.
This returns you to the Image Properties dialog box where you need to do 2 more things:
Under Image Alignment, select Left
Under Image Size, select Danland Breakpoint group.
At this point you are finished inserting a picture into the posting.

How To Setup Your AREDN Node

HowTo Setup your Node



Before following this guide you should already have a node that is flashed with the AREDN firmware. If you do not please see FlashUbiquiti prior to continuing.

Node Setup

WU2S-U4 airGrid M2 Setup Pic Q.JPG Open your browser and visit http://localnode:8080
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Uploading firmware to Ubiquiti

Uploading firmware to Ubiquiti


Warning AirOS 6.0.6 and newer

(August 2018)

Current AREDN nightly builds can be loaded onto any supported (or ‘in testing’) Ubiquiti device by using the TFTP method. If the version of AirOS is v5.5 or lower, then the AirOS Web Interface may be used to load AREDN. The bootloader provided with AirOS 5.6 and higher will check for official “signed Ubiquiti firmware” before loading via the AirOS Web Interface. Since AREDN firmware is not signed by Ubiquiti, this will fail. However, TFTP should continue to work.

(July 2017)

Ubiquiti is not allowing any firmware downgrades VIA the AirOS GUI in AirOS 6.0.6+, however, you CAN downgrade via the TFTP procedure. If your device has AirOS 6.0.6, you MUST add an additional step to TFTP downgrade to AirOS 5.6 before starting the procedure below.
Your steps are:

  1. Use TFTP to downgrade AirOS to version 5.6.x (to allow unsigned firmware loads via the GUI)
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Understanding VLAN's

Understanding VLAN's

All this talk about VLAN's!  What are they?  How do they work?  Wikipedia's definition ( is:

In computer networking, a single layer-2 network may be partitioned to create multiple distinct broadcast domains, which are mutually isolated so that packets can only pass between them via one or more routers; such a domain is referred to as a virtual local area network, virtual LAN or VLAN.

This is usually achieved on switch or router devices. Simpler devices only support...

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Use an Ubiquiti ToughSwitch to Remotely Control Power to a Raspberry Pi


Use an Ubiquiti ToughSwitch to Remotely Control Power to a Raspberry Pi

I include a Raspberry Pi “utility” computer at each mountain-top site.  The challenge is… what happens if it locks up.  Traveling there to power-reset it can be really inconvenient.  So I got to wondering what it would take to use the existing ToughSwitch to power-control the Pi.  Here’s how I decided to approach it.

Sourcing the Pi power this way allows you to perform power control through the ToughSwitch management interface.  Using parts sourced from eBay, this comes in at around $8 including the CAT5 cables.  Shipping is extra, of course, but with a little shopping around you can likely get all of this delivered for $3 or $4.

The CAT5 coming in from the lower-left is from the ToughSwitch PoE Ethernet port.  It's connected to a passive PoE injector, working in reverse... becoming a PoE "extractor," then to a 2.1mm barrel jumper connected to the extractor's, now DC "output,"… the other end of which I’ve soldered to...

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How To Use PuTTYGen to Make SSH Keys and Use Them on AREDN Nodes


How To Use PuTTYGen to Make SSH Keys and Use Them on AREDN Nodes

This How To will show you a method for generating SSH key pairs on a Windows computer, saving them to a USB flash drive, installing the SSH key on an AREDN node and using the SSH keys with a PuTTY terminal session.

The use of Secure Shell (SSH) keys when using PuTTY or another SSH client is a useful aid to managing a group of AREDN nodes.

First, obtain the PuTTY suite of applications from the PuTTY Download Page and install them on your computer.

Second, obtain and prepare to use a text editor such as Notepad++ that does not insert unwanted characters and metadata into a text file.

Next, follow the steps below.


1. Start the PuTTYGen application

2. Confirm that you are going to...

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RF Path Planning with AirLink


RF Path Planning with AirLink



Here is a quick 3.5 min video tutorial on using Ubiquiti's RF Path Planning tool.  This is a good resource for modeling different devices, antennas, antenna heights, and locations.  Best of all, it's absolutely free and easy to use!  Enjoy the video.

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Configuring a Netgear GS105E Switch with LAN/WAN ports


Configuring a Netgear GS105E Switch with LAN/WAN ports


Why?   The Ubiquiti devices, with the exception of the AirRouter, only have 1 network port.  A switch with basic “vlan” capability can be configured to have multiple ports and enable gateway (internet) access to your AREDN node.   These instructions show how to configure the GS105E unmanaged switch to have the following port configuration:

Port #             Usage 

  1.             Ubiquiti Node
  2.             LAN 1
  3.             LAN 2
  4.             LAN 3
  5.             WAN

Step 1:  Follow the vendor’s instructions to install the configuration utility on your Windows computer on your home network.  Plug the GS105E port 5 into your home network.  Out of box, the GS105E will obtain an IP address from your home router.   You may wish to hold the factory reset button to restart from this step. 

I recommend assigning a static address to avoid consumption of LAN IP addresses from the hamnet node.  The ProSafe Plus Netgear...

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