MikroTik RouterBoard RB951Ui-2HnD

Warning - Mikrotik has made some changes on the board and recently ordered units are no longer supported. Note: https://forum.openwrt.org/t/mikrotik-rb951ui-2hnd-unsupported-nand/72052

Conflicting with ToH dataentry → to be checked

Sister product: http://routerboard.com/RB951G-2HnD

Please refer to the sister board wiki page rb951g_2hnd for a description of differences.

Warning! As of 04/02/2020 WiFi is *not* working on rev2 hardware. Check this post for updates: https://forum.openwrt.org/t/support-for-mikrotik-rb951ui-2hnd-r2/46923

Please refer to Common Procedures for Mikrotik RouterBoard Products.

Instructions for setting up LEDs are from 12/2014, but as for v15.05 it seems to be still neccessary to do this. Anyway, please check first if the LEDs are working as desired (plug devices into ethernet ports, check WLAN activity... etc).

Add these lines to /etc/config/system

config led 'act'
      option trigger 'netdev'
      option mode 'link tx rx'
      option sysfs 'rb:green:act'
      option name 'ACT'
      option dev 'eth1'
      option brightness '0'
      option default '0'
config led 'p1'
      option trigger 'netdev'
      option name 'Port_1'
      option sysfs 'rb:green:port1'
      option dev 'eth0'
      option mode 'link tx rx'
      option default '0'
config led 'p2'
      option trigger 'switch0'
      option name 'Port_2'
      option sysfs 'rb:green:port2'
      option port_mask '0x10'
      option default '0'
config led 'p3'
      option name 'Port_3'
      option sysfs 'rb:green:port3'
      option trigger 'switch0'
      option port_mask '0x8'
      option default '0'
config led 'p4'
      option name 'Port_4'
      option trigger 'switch0'
      option sysfs 'rb:green:port4'
      option port_mask '0x4'
      option default '0'
config led 'p5'
      option name 'Port_5'
      option sysfs 'rb:green:port5'
      option trigger 'switch0'
      option port_mask '0x2'
      option default '0'
config led 'wlan'
      option sysfs 'rb:green:wlan'
      option name 'WLAN'
      option trigger 'phy0tpt'
      option default '0'

There is a red LED on port 5, which seems to be some indication of PoE (same voltage as input https://mikrotik.com/product/RB951Ui-2HnD, so 24 Volts, 0.5 Amp, apparently enabled by default). You can (tested working for v18 and v19 in the forum ) turn the LED off by editing /etc/config/system:

# Disable PoE on port 5
config gpio_switch 'poe'
     option name 'POE'
     option value '0'
     option gpio_pin '2'

Or temporarily with the following command (PoE will continue supplying power over port 5, even without the red LED on [However, see Note below] ) . You can put it in /etc/rc.local

echo 0 > /sys/class/gpio/gpio2/value

Note 2018-10-10 Using OpenWRT 18.06.1, after the above command is issued the red LED turns off and PoE power is turned off.

In /etc/config/network, add these lines to enable the built-in ethernet switch between ports 2..5.

config switch 'eth1'
      option enable '1'
      

In /etc/config/network, add these lines to enable the switch, and create 2 vlan interfaces (eth1.11 and eth1.12). The first for ports 5 and 4, and the later for ports 3 and 2. Port 1 on the router is eth0.

config switch 'eth1'
      option enable '1'
      option enable_vlan '1'
config switch_vlan
      option device 'eth1'
      option vlan '11'
      option vid '11'
      option ports '0t 1 2'
config switch_vlan
      option device 'eth1'
      option vlan '12'
      option vid '12'
      option ports '0t 3 4'
      

Helpfull info:

• http://www.lan23.ru/forum/showthread.php?t=10780 (HowTo on Russian)
• http://www.ericconrad.com/2012/05/installing-openwrt-on-routerboard-750gl.html
• http://ayufan.eu/projects/openwrt-rb951g/
• http://openwrt.ayufan.eu/rb951g/

patchworks.openwrt.org is not working since ~2015, the following URL will not work anymore, but you may be interested in URLs pointing to it for the history of dev. on this routerboard.

http://patchwork.openwrt.org/patch/3976/

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