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Ubuntu 20.04 LTS
================
This document describes installation from source. If you want to build a
``deb``, see :ref:`packaging-debian`.
Installing Dependencies
-----------------------
.. code-block:: console
sudo apt update
sudo apt-get install \
git autoconf automake libtool make libreadline-dev texinfo \
pkg-config libpam0g-dev libjson-c-dev bison flex \
libc-ares-dev python3-dev python3-sphinx \
install-info build-essential libsnmp-dev perl \
libcap-dev python2 libelf-dev libunwind-dev
.. include:: building-libunwind-note.rst
Note that Ubuntu 20 no longer installs python 2.x, so it must be
installed explicitly. Ensure that your system has a symlink named
``/usr/bin/python`` pointing at ``/usr/bin/python3``.
In addition, ``pip`` for python2 must be installed if you wish to run
the FRR topotests. That version of ``pip`` is not available from the
ubuntu apt repositories; in order to install it:
.. code-block:: shell
curl https://bootstrap.pypa.io/pip/2.7/get-pip.py --output get-pip.py
sudo python2 ./get-pip.py
# And verify the installation
pip2 --version
.. include:: building-libyang.rst
Protobuf
^^^^^^^^
.. code-block:: console
sudo apt-get install protobuf-c-compiler libprotobuf-c-dev
ZeroMQ
^^^^^^
.. code-block:: console
sudo apt-get install libzmq5 libzmq3-dev
Building & Installing FRR
-------------------------
Add FRR user and groups
^^^^^^^^^^^^^^^^^^^^^^^
.. code-block:: console
sudo groupadd -r -g 92 frr
sudo groupadd -r -g 85 frrvty
sudo adduser --system --ingroup frr --home /var/run/frr/ \
--gecos "FRR suite" --shell /sbin/nologin frr
sudo usermod -a -G frrvty frr
Compile
^^^^^^^
.. include:: include-compile.rst
Install FRR configuration files
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
.. code-block:: console
sudo install -m 775 -o frr -g frr -d /var/log/frr
sudo install -m 775 -o frr -g frrvty -d /etc/frr
sudo install -m 640 -o frr -g frrvty tools/etc/frr/vtysh.conf /etc/frr/vtysh.conf
sudo install -m 640 -o frr -g frr tools/etc/frr/frr.conf /etc/frr/frr.conf
sudo install -m 640 -o frr -g frr tools/etc/frr/daemons.conf /etc/frr/daemons.conf
sudo install -m 640 -o frr -g frr tools/etc/frr/daemons /etc/frr/daemons
Tweak sysctls
^^^^^^^^^^^^^
Some sysctls need to be changed in order to enable IPv4/IPv6 forwarding and
MPLS (if supported by your platform). If your platform does not support MPLS,
skip the MPLS related configuration in this section.
Edit :file:`/etc/sysctl.conf` and uncomment the following values (ignore the
other settings):
::
# Uncomment the next line to enable packet forwarding for IPv4
net.ipv4.ip_forward=1
# Uncomment the next line to enable packet forwarding for IPv6
# Enabling this option disables Stateless Address Autoconfiguration
# based on Router Advertisements for this host
net.ipv6.conf.all.forwarding=1
Reboot or use ``sysctl -p`` to apply the same config to the running system.
Add MPLS kernel modules
"""""""""""""""""""""""
Ubuntu 20.04 ships with kernel 5.4; MPLS modules are present by default. To
enable, add the following lines to :file:`/etc/modules-load.d/modules.conf`:
::
# Load MPLS Kernel Modules
mpls_router
mpls_iptunnel
And load the kernel modules on the running system:
.. code-block:: console
sudo modprobe mpls-router mpls-iptunnel
If the above command returns an error, you may need to install the appropriate
or latest linux-modules-extra-<kernel-version>-generic package. For example
``apt-get install linux-modules-extra-`uname -r`-generic``
Enable MPLS Forwarding
""""""""""""""""""""""
Edit :file:`/etc/sysctl.conf` and the following lines. Make sure to add a line
equal to :file:`net.mpls.conf.eth0.input` for each interface used with MPLS.
::
# Enable MPLS Label processing on all interfaces
net.mpls.conf.eth0.input=1
net.mpls.conf.eth1.input=1
net.mpls.conf.eth2.input=1
net.mpls.platform_labels=100000
Install service files
^^^^^^^^^^^^^^^^^^^^^
.. code-block:: console
sudo install -m 644 tools/frr.service /etc/systemd/system/frr.service
sudo systemctl enable frr
Enable daemons
^^^^^^^^^^^^^^
Open :file:`/etc/frr/daemons` with your text editor of choice. Look for the
section with ``watchfrr_enable=...`` and ``zebra=...`` etc. Enable the daemons
as required by changing the value to ``yes``.
Start FRR
^^^^^^^^^
.. code-block:: shell
systemctl start frr
|
