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Run OTBR Docker

OpenThread Border Router (OTBR) requires a Thread RCP node in order to join a Thread network. OTBR Docker provides support for both a physical RCP (OpenThread dongle) or a simulated RCP.

If you want to connect OTBR Docker to other physical Thread devices, use a physical RCP. If you want to test border routing with a simulated Thread network, use a simulated RCP.

Physical RCP

Use any supported OpenThread platform for the physical RCP. See the Build and flash RCP step from the OpenThread Border Router Build and Configuration guide for more information.

Attach the RCP

  1. After building and flashing, attach the RCP device to the machine running OTBR Docker via USB.
  2. Determine the serial port name for the RCP device by checking /dev: 
    ls /dev/tty*
/dev/ttyACMO

Start the OTBR Docker container

In a new terminal window, start OTBR Docker, referencing the RCP's serial port. For example, if the RCP is mounted at /dev/ttyACM0:

docker run --sysctl "net.ipv6.conf.all.disable_ipv6=0 \
        net.ipv4.conf.all.forwarding=1 net.ipv6.conf.all.forwarding=1" \
        -p 8080:80 --dns=127.0.0.1 -it --volume \
        /dev/ttyACM0:/dev/ttyACM0 --privileged openthread/otbr \
        --radio-url spinel+hdlc+uart:///dev/ttyACM0

Upon success, you should have output similar to this:

WARNING: Localhost DNS setting (--dns=127.0.0.1) may fail in containers.
RADIO_URL: spinel+hdlc+uart:///dev/ttyACM0
TUN_INTERFACE_NAME: wpan0
NAT64_PREFIX: 64:ff9b::/96
AUTO_PREFIX_ROUTE: true
AUTO_PREFIX_SLAAC: true
Current platform is ubuntu
* Applying /etc/sysctl.d/10-console-messages.conf ...
kernel.printk = 4 4 1 7
* Applying /etc/sysctl.d/10-ipv6-privacy.conf ...
net.ipv6.conf.all.use_tempaddr = 2
net.ipv6.conf.default.use_tempaddr = 2
* Applying /etc/sysctl.d/10-kernel-hardening.conf ...
kernel.kptr_restrict = 1
* Applying /etc/sysctl.d/10-link-restrictions.conf ...
fs.protected_hardlinks = 1
fs.protected_symlinks = 1
* Applying /etc/sysctl.d/10-magic-sysrq.conf ...
kernel.sysrq = 176
* Applying /etc/sysctl.d/10-network-security.conf ...
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.all.rp_filter = 1
net.ipv4.tcp_syncookies = 1
* Applying /etc/sysctl.d/10-ptrace.conf ...
kernel.yama.ptrace_scope = 1
* Applying /etc/sysctl.d/10-zeropage.conf ...
vm.mmap_min_addr = 65536
* Applying /etc/sysctl.d/60-otbr-ip-forward.conf ...
net.ipv6.conf.all.forwarding = 1
net.ipv4.ip_forward = 1
* Applying /etc/sysctl.conf ...
 * Starting userspace NAT64 tayga             [ OK ]
/usr/sbin/service
 * Starting domain name service... bind9      [ OK ]
/usr/sbin/service
 * dbus is not running
 * Starting system message bus dbus           [ OK ]
   ...fail!
otWeb[155]: border router web started on wpan0
otbr-agent[224]: Thread interface wpan0
otbr-agent[224]: Thread is down
otbr-agent[224]: Check if Thread is up: OK
otbr-agent[224]: Stop publishing service
otbr-agent[224]: PSKc is not initialized
otbr-agent[224]: Check if PSKc is initialized: OK
otbr-agent[224]: Initialize OpenThread Border Router Agent: OK
otbr-agent[224]: Border router agent started.

OTBR Docker is now running. Leave this terminal window open and running in the background. If you quit the process or close the window, OTBR Docker will go down.

Go to Test Connectivity to continue with the OTBR Docker setup.

Simulated RCP

Use a simulated OpenThread RCP build for the simulated RCP. This is useful if you want to test border routing with a simulated Thread network on a single machine.

Build the simulated RCP application

  1. Clone the OpenThread repository: 
    cd ~
git clone https://github.com/openthread/openthread
  2. Bootstrap and build the simulated application: 
    cd openthread
./bootstrap
make -f examples/Makefile-simulation

Set up a bidirectional data stream

Use the socat command line utility to establish a bidirectional data stream to transfer data between the simulated RCP and OTBR Docker.

  1. Open a new terminal window to run this process, as it must be left running while OTBR Docker is running.
  2. Install socat: 
    sudo apt-get install socat
  3. Start socat: 
    socat -d -d pty,raw,echo=0 pty,raw,echo=0
2018/09/06 09:58:29 socat[242994] N PTY is /dev/pts/2
2018/09/06 09:58:29 socat[242994] N PTY is /dev/pts/7
2018/09/06 09:58:29 socat[242994] N starting data transfer loop with FDs [5,5] and [7,7]

Make a note of the two serial ports bolded in the output. Use the first one for the simulated RCP and the second one for OTBR Docker. In the example output above:

  • /dev/pts/2 = Simulated RCP port
  • /dev/pts/7 = OTBR Docker

Leave this terminal window open and running in the background.

Start the simulated RCP

  1. Open a new terminal window to run the simulated RCP, as it must be left running while OTBR Docker is running.
  2. Using the first serial port in the socat output, start the simulated RCP application. For example, if using /dev/pts/2 from the socat output: 
    ~/openthread/output/simulation/bin/ot-rcp 1 \
    > /dev/pts/2 < /dev/pts/2

There is no output from this command. Leave this terminal window open and running in the background.

Start the OTBR Docker container

In a new terminal window, start OTBR Docker, using the second serial port in the socat output. For example, if using /dev/pts/7 from the socat output:

docker run --sysctl "net.ipv6.conf.all.disable_ipv6=0 \
        net.ipv4.conf.all.forwarding=1 net.ipv6.conf.all.forwarding=1" \
        -p 8080:80 --dns=127.0.0.1 -it --volume \
        /dev/pts/7:/dev/ttyUSB0 --privileged openthread/otbr

Note that the command is also using the /dev/ttyUSB0 port. This is the default mount point within the Docker container.

Upon success, you should have output similar to this:

WARNING: Localhost DNS setting (--dns=127.0.0.1) may fail in containers.
RADIO_URL: spinel+hdlc+uart:///dev/ttyUSB0
TUN_INTERFACE_NAME: wpan0
NAT64_PREFIX: 64:ff9b::/96
AUTO_PREFIX_ROUTE: true
AUTO_PREFIX_SLAAC: true
Current platform is ubuntu
* Applying /etc/sysctl.d/10-console-messages.conf ...
kernel.printk = 4 4 1 7
* Applying /etc/sysctl.d/10-ipv6-privacy.conf ...
net.ipv6.conf.all.use_tempaddr = 2
net.ipv6.conf.default.use_tempaddr = 2
* Applying /etc/sysctl.d/10-kernel-hardening.conf ...
kernel.kptr_restrict = 1
* Applying /etc/sysctl.d/10-link-restrictions.conf ...
fs.protected_hardlinks = 1
fs.protected_symlinks = 1
* Applying /etc/sysctl.d/10-magic-sysrq.conf ...
kernel.sysrq = 176
* Applying /etc/sysctl.d/10-network-security.conf ...
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.all.rp_filter = 1
net.ipv4.tcp_syncookies = 1
* Applying /etc/sysctl.d/10-ptrace.conf ...
kernel.yama.ptrace_scope = 1
* Applying /etc/sysctl.d/10-zeropage.conf ...
vm.mmap_min_addr = 65536
* Applying /etc/sysctl.d/60-otbr-ip-forward.conf ...
net.ipv6.conf.all.forwarding = 1
net.ipv4.ip_forward = 1
* Applying /etc/sysctl.conf ...
 * Starting userspace NAT64 tayga             [ OK ]
/usr/sbin/service
 * Starting domain name service... bind9      [ OK ]
/usr/sbin/service
 * dbus is not running
 * Starting system message bus dbus           [ OK ]
   ...fail!
otWeb[155]: border router web started on wpan0
otbr-agent[224]: Thread interface wpan0
otbr-agent[224]: Thread is down
otbr-agent[224]: Check if Thread is up: OK
otbr-agent[224]: Stop publishing service
otbr-agent[224]: PSKc is not initialized
otbr-agent[224]: Check if PSKc is initialized: OK
otbr-agent[224]: Initialize OpenThread Border Router Agent: OK
otbr-agent[224]: Border router agent started.

OTBR Docker is now running. Leave this terminal window open and running in the background. If you quit the process or close the window, OTBR Docker will go down.

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