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== Download the Image File For a Extender Node ==
After following the [Mesh/WalkThrough], you are probably just an isolated node on the virtual People's Open Network. If you want to become part of the physical mesh, you are going to need to extend the signal from home node using what we call an extender node. An extender node is just a roof-mounted, directional antenna used to make point-to-point connections between two locations that have line-of-sight (LOS) to one another. Preparing an extender node generally consists to two stages, downgrading the proprietary AirOS firmware and flashing it with our custom build of OpenWrt.
 
The extender nodes that we currently support are:
 
{| class="wikitable"
! Name !! Notes !! OpenWRT Doc !! Firmware Image
|-
| Ubiquiti Nanostation M2 and M5 || Newer models need [[#Downgrading_to_earlier_AirOS|AirOS downgrade]] before flashing!  Note that this will almost certainly require a USB to Serial connection (see below).|| [https://wiki.openwrt.org/toh/ubiquiti/nanostationm5 OpenWRT Docs] || firmware: [https://builds.sudomesh.org/builds/chaos_calmer/ar71xx.extender-node/openwrt-ar71xx-generic-ubnt-nano-m-squashfs-factory.bin pre 2015 M5 versions and all M2 versions] or [https://builds.sudomesh.org/builds/sudowrt/fledgling/0.2.0/ar71xx.extender-node/openwrt-ar71xx-generic-ubnt-nano-m-xw-squashfs-factory.bin 2015-2016 M5 versions]
|-
| Ubiquiti Picostation 2 || Previous generation 802.11g (not the same as M2) || [https://wiki.openwrt.org/toh/ubiquiti/picostation2 OpenWRT Docs] || [https://builds.sudomesh.org/builds/sudowrt/fledgling/0.2.0/ath25.extender-node/openwrt-ath25-ubnt2-pico2-squashfs.bin firmware image]
|-
| Ubiquiti Picostation M2 || || [https://wiki.openwrt.org/toh/ubiquiti/picostationm2 OpenWRT Docs] || [https://builds.sudomesh.org/builds/sudowrt/fledgling/0.2.0/ar71xx.extender-node/openwrt-ar71xx-generic-ubnt-bullet-m-squashfs-factory.bin firmware image]
|-
| Ubiquiti Nanobeam M2 and M5 || NBE‑M2‑13 and NBE‑M5‑16 work but some (earlier?) NBE‑M5‑19 have ethernet port issues. Newer models need [[#Downgrading_to_earlier_AirOS|AirOS downgrade]] before flashing! || [https://wiki.openwrt.org/toh/ubiquiti/nanobeam OpenWRT Docs] || [https://builds.sudomesh.org/builds/sudowrt/fledgling/0.2.0/ar71xx.extender-node/openwrt-ar71xx-generic-ubnt-loco-m-xw-squashfs-factory.bin firmware image]
|-
| Ubiquiti Nanobridge M2 and M5 || || Same as pre-2015 Nanostation M || [https://builds.sudomesh.org/builds/sudowrt/fledgling/0.2.0/ar71xx.extender-node/openwrt-ar71xx-generic-ubnt-nano-m-squashfs-factory.bin firmware image]
|-
| Ubiquiti Bullet M2 and M5 || || [https://wiki.openwrt.org/toh/ubiquiti/bullet OpenWRT Docs] || [https://builds.sudomesh.org/builds/sudowrt/fledgling/0.2.0/ar71xx.extender-node/openwrt-ar71xx-generic-ubnt-bullet-m-squashfs-factory.bin firmware image]
|}


== Downgrading to earlier AirOS ==
== Downgrading to earlier AirOS ==


Anything with version 5.6 of AirOS and above needs to be downgraded to an earlier AirOS version before you can flash it with OpenWRT. If you don't know if you need to do this then proceed to the next section (Flash the Extender Node) and come back here if you get an error saying "Firmware check failed".
Typically, we use Ubiquiti equipment for our extender nodes. These come with a proprietary firmware called AirOS. Any extender node with version 5.6 of AirOS and above needs to be downgraded to a 5.5.XX version of AirOS version before you can flash it with OpenWRT.  
 
If you get this error DO NOT try to flash sudowrt/openwrt through the AirOS web interface. It will succeed and you will be stuck with a partially working system (all changes lost on every reboot) and no easy way to get it fully working.
 
The solution is to use the built-in AirOS web UI to upload a version 5.5 of AirOS. This will downgrade the bootloader to a point where it's compatible with sudowrt/openwrt. Here's how:
 
XM.v6.0.4 (v6.0.4) firmware version does not appear to be downgradable via the following method, use command-line method.


* Download the v5.5 AirOS firmware
First check what version of AirOS your extender node is running, to do this, edit your network settings to reflect the following:


http://dl.ubnt.com/firmwares/XW-fw/v5.5.10/XW.v5.5.10-u2.28005.150723.1358.bin
* Network Manager Method: Manual
* IP Address: 192.168.1.10 (some devices will only accept from this IP)
* Subnet Mask: 255.255.255.0
* Gateway: 0.0.0.0 (Or leave blank)


http://dl.ubnt.com/firmwares/XN-fw/v5.5.11/XM.v5.5.11.28002.150723.1344.bin
You can also use the commands:
  sudo ip link set <eth_interface> down
  sudo ip addr add 192.168.1.10/24 dev <eth_interface>
  sudo ip link set <eth_interface> up


http://dl.ubnt.com/firmwares/XN-fw/v5.5.11/TI.v5.5.11.28002.150723.1518.bin
where <eth_interface> is the name of your ethernet interface found using `ip addr` (common names include eth0, enp3s0, ...)


* Configure your wired ethernet interface to use IP: 192.168.1.10, subnet: 255.255.255.0
* Plug one Ethernet cable into your laptop on one end and into the "LAN" port of the Power-over-Ethernet (PoE) power supply on the other end.
* Plug one Ethernet cable into your laptop on one end and into the "LAN" port of the power-over-ethernet power supply on the other end.
* Plug another Ethernet cable into your extender node on one end and into the "POE" port of the PoE power supply on the other end.
* Plug another Ethernet cable into your node/router on one end and into the "POE" port of the power-over-ethernet power supply on the other end.
* Power on the extender node by plugging in the PoE.
* Power on the router.
* Wait for a couple of minutes.
* Wait for a couple of minutes.
* Ensure you're not connected to a wifi network that has an 192.168.1.x IP range. Disconnect/disable your wifi if you're unsure.
* Ensure you're not connected to a wifi network that has an 192.168.1.x IP range. Disconnect/disable your wifi if you're unsure.
* In your browser go to http://192.168.1.20
* In your browser go to http://192.168.1.20
* Log in using the credentials username: ubnt and password: ubnt
* Log in using the credentials  
  username: ubnt  
  password: ubnt
* Look at the Firmware information, it may say something like XM.v5.6.6.bin or XW.v5.6.6, based on this download the correct version of AirOS v5.5.10
 
{| class="wikitable"
! Version !! Firmware Image
|-
| XW v5.5.10 || http://dl.ubnt.com/firmwares/XW-fw/v5.5.10/XW.v5.5.10-u2.28005.150723.1358.bin
|-
| XM v5.5.10 || http://dl.ubnt.com/firmwares/XN-fw/v5.5.11/XM.v5.5.11.28002.150723.1344.bin
|-
| TI v5.5.11 || http://dl.ubnt.com/firmwares/XN-fw/v5.5.11/TI.v5.5.11.28002.150723.1518.bin
|}
 
* Click the "System" tab.
* Click the "System" tab.
* Click the "Browse" button next to the "Upload Firmware" box  
* Click the "Browse" button next to the "Upload Firmware" box  
* Select the XW.v5.5.10.bin file that you downloaded earlier.
* Select the firmware image you just downloaded
* Click "Upload".
* Click "Upload".
* After uploading you will be asked if you want to upgrade/install the firmware. Click yes/accept.
* After uploading you will be asked if you want to upgrade/install the firmware. Click yes/accept.
* Let the router finish flashing and wait for it to fully reboot before proceeding to flash sudowrt as described in the next section.
* Ignore any warnings about changing the default admin password, we're gonna overwrite it anyway
* Let the router finish flashing and wait for it to fully reboot.
* After it reboots, you may wanna go back into the web interface to make sure the downgrade was successful before proceeding.
 
 
XM.v6.0.4 (v6.0.4) firmware version does not appear to be downgradable via the preceding method. Instead you will need to use command-line method as follows,


command-line method:
  ssh-keygen -f "/home/yourusername/.ssh/known_hosts" -R 192.168.1.20
  scp <firmware_image.bin>  ubnt@192.168.1.20:/tmp/fwupdate.bin
  ssh ubnt@192.168.1.20  # password is "ubnt"
  /sbin/fwupdate -m


$ ssh-keygen -f "/home/yourusername/.ssh/known_hosts" -R 192.168.1.20


$ scp /''path''/''to''/''firmware''/XM.v5.5.11.28002.150723.1344.bin  ubnt@192.168.1.20:/tmp/fwupdate.bin
== Download the Image File For a Extender Node ==


$ ssh ubnt@192.168.1.20 (password is ubnt)
The extender nodes that we currently support are:


$ /sbin/fwupdate -m
{| class="wikitable"
! Name !! Notes !! OpenWRT Doc !! Firmware Image
|-
| Ubiquiti Nanostation M2 and M5 || Newer models need [[#Downgrading_to_earlier_AirOS|AirOS downgrade]] before flashing!  Note that this will almost certainly require a USB to Serial connection (see below).|| [https://wiki.openwrt.org/toh/ubiquiti/nanostationm5 OpenWRT Docs] || firmware: [https://builds.sudomesh.org/builds/chaos_calmer/ar71xx.extender-node/openwrt-ar71xx-generic-ubnt-nano-m-squashfs-factory.bin pre 2015 M5 versions and all M2 versions] or [https://builds.sudomesh.org/builds/sudowrt/fledgling/0.2.0/ar71xx.extender-node/openwrt-ar71xx-generic-ubnt-nano-m-xw-squashfs-factory.bin 2015-2016 M5 versions]
|-
| Ubiquiti Picostation 2 || Previous generation 802.11g (not the same as M2) || [https://wiki.openwrt.org/toh/ubiquiti/picostation2 OpenWRT Docs] || [https://builds.sudomesh.org/builds/sudowrt/fledgling/0.2.0/ath25.extender-node/openwrt-ath25-ubnt2-pico2-squashfs.bin firmware image]
|-
| Ubiquiti Picostation M2 || || [https://wiki.openwrt.org/toh/ubiquiti/picostationm2 OpenWRT Docs] || [https://builds.sudomesh.org/builds/sudowrt/fledgling/0.2.0/ar71xx.extender-node/openwrt-ar71xx-generic-ubnt-bullet-m-squashfs-factory.bin firmware image]
|-
| Ubiquiti Nanobeam M2 and M5 || NBE‑M2‑13 and NBE‑M5‑16 work but some (earlier?) NBE‑M5‑19 have ethernet port issues. Newer models need [[#Downgrading_to_earlier_AirOS|AirOS downgrade]] before flashing! || [https://wiki.openwrt.org/toh/ubiquiti/nanobeam OpenWRT Docs] || [https://builds.sudomesh.org/builds/sudowrt/fledgling/0.2.0/ar71xx.extender-node/openwrt-ar71xx-generic-ubnt-loco-m-xw-squashfs-factory.bin firmware image]
|-
| Ubiquiti Nanobridge M2 and M5 || || Same as pre-2015 Nanostation M || [https://builds.sudomesh.org/builds/sudowrt/fledgling/0.2.0/ar71xx.extender-node/openwrt-ar71xx-generic-ubnt-nano-m-squashfs-factory.bin firmware image]
|-
| Ubiquiti Bullet M2 and M5 || || [https://wiki.openwrt.org/toh/ubiquiti/bullet OpenWRT Docs] || [https://builds.sudomesh.org/builds/sudowrt/fledgling/0.2.0/ar71xx.extender-node/openwrt-ar71xx-generic-ubnt-bullet-m-squashfs-factory.bin firmware image]
|}


$ :)


== Flash the Extender Node ==
== Flash the Extender Node ==
Gcg
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