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CentOS 8
========
This document describes installation from source. If you want to build an RPM,
see :ref:`packaging-redhat`.
Install required packages
-------------------------
Add packages:
::
sudo dnf install --enablerepo=PowerTools git autoconf pcre-devel \
automake libtool make readline-devel texinfo net-snmp-devel pkgconfig \
groff pkgconfig json-c-devel pam-devel bison flex python2-pytest \
c-ares-devel python2-devel libcap-devel \
elfutils-libelf-devel libunwind-devel \
protobuf-c-devel
.. include:: building-libunwind-note.rst
.. include:: building-libyang.rst
Get FRR, compile it and install it (from Git)
---------------------------------------------
**This assumes you want to build and install FRR from source and not
using any packages**
Add frr groups and user
^^^^^^^^^^^^^^^^^^^^^^^
::
sudo groupadd -g 92 frr
sudo groupadd -r -g 85 frrvty
sudo useradd -u 92 -g 92 -M -r -G frrvty -s /sbin/nologin \
-c "FRR FRRouting suite" -d /var/run/frr frr
Download Source, configure and compile it
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
(You may prefer different options on configure statement. These are just
an example.)
::
git clone https://github.com/frrouting/frr.git frr
cd frr
./bootstrap.sh
./configure \
--bindir=/usr/bin \
--sbindir=/usr/lib/frr \
--libdir=/usr/lib/frr \
--libexecdir=/usr/lib/frr \
--with-moduledir=/usr/lib/frr/modules \
--enable-snmp=agentx \
--enable-multipath=64 \
--enable-user=frr \
--enable-group=frr \
--enable-vty-group=frrvty \
--disable-ldpd \
--enable-fpm \
--with-pkg-git-version \
--with-pkg-extra-version=-MyOwnFRRVersion \
SPHINXBUILD=/usr/bin/sphinx-build
make
make check
sudo make install
Create empty FRR configuration files
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
::
sudo mkdir /var/log/frr
sudo mkdir /etc/frr
sudo touch /etc/frr/zebra.conf
sudo touch /etc/frr/bgpd.conf
sudo touch /etc/frr/ospfd.conf
sudo touch /etc/frr/ospf6d.conf
sudo touch /etc/frr/isisd.conf
sudo touch /etc/frr/ripd.conf
sudo touch /etc/frr/ripngd.conf
sudo touch /etc/frr/pimd.conf
sudo touch /etc/frr/nhrpd.conf
sudo touch /etc/frr/eigrpd.conf
sudo touch /etc/frr/babeld.conf
sudo chown -R frr:frr /etc/frr/
sudo touch /etc/frr/vtysh.conf
sudo chown frr:frrvty /etc/frr/vtysh.conf
sudo chmod 640 /etc/frr/*.conf
Install daemon config file
^^^^^^^^^^^^^^^^^^^^^^^^^^
::
sudo install -p -m 644 tools/etc/frr/daemons /etc/frr/
sudo chown frr:frr /etc/frr/daemons
Edit /etc/frr/daemons as needed to select the required daemons
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Look for the section with ``watchfrr_enable=...`` and ``zebra=...`` etc.
Enable the daemons as required by changing the value to ``yes``
Enable IP & IPv6 forwarding
^^^^^^^^^^^^^^^^^^^^^^^^^^^
Create a new file ``/etc/sysctl.d/90-routing-sysctl.conf`` with the
following content:
::
# Sysctl for routing
#
# Routing: We need to forward packets
net.ipv4.conf.all.forwarding=1
net.ipv6.conf.all.forwarding=1
Load the modified sysctl's on the system:
::
sudo sysctl -p /etc/sysctl.d/90-routing-sysctl.conf
Install frr Service
^^^^^^^^^^^^^^^^^^^
::
sudo install -p -m 644 tools/frr.service /usr/lib/systemd/system/frr.service
Register the systemd files
^^^^^^^^^^^^^^^^^^^^^^^^^^
::
sudo systemctl preset frr.service
Enable required frr at startup
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
::
sudo systemctl enable frr
Reboot or start FRR manually
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
::
sudo systemctl start frr
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