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