Arch Linux¶
Installing Dependencies¶
sudo pacman -Syu
sudo pacman -S \
git autoconf automake libtool make cmake pcre readline texinfo \
pkg-config pam json-c bison flex python-pytest \
c-ares python systemd python2-ipaddress python-sphinx \
systemd-libs net-snmp perl libcap libelf
FRR depends on the relatively new libyang
library to provide YANG/NETCONF
support. Unfortunately, most distributions do not yet offer a libyang
package from their repositories. Therefore we offer two options to install this
library.
Option 1: Binary Install
The FRR project builds some binary libyang
packages.
RPM packages are at our RPM repository.
DEB packages are available as CI artifacts here.
Warning
libyang
version 1.0.184 or newer is required to build FRR.
Note
The libyang
development packages need to be installed in addition to the
libyang core package in order to build FRR successfully. Make sure to
download and install those from the link above alongside the binary
packages.
Depending on your platform, you may also need to install the PCRE
development package. Typically this is libpcre-dev
or pcre-devel
.
Note
For Debian-based systems, the official libyang
package requires recent
versions of swig
(3.0.12) and debhelper
(11) which are only
available in Debian buster (10). However, libyang
packages built on
Debian buster can be installed on both Debian jessie (8) and Debian stretch
(9), as well as various Ubuntu systems. The python3-yang
package will
not work, but the other packages (libyang-dev
is the one needed for FRR)
will.
Option 2: Source Install
Note
Ensure that the libyang build requirements
are met before continuing. Usually this entails installing cmake
and
libpcre-dev
or pcre-devel
.
git clone https://github.com/CESNET/libyang.git
cd libyang
mkdir build; cd build
cmake -DENABLE_LYD_PRIV=ON -DCMAKE_INSTALL_PREFIX:PATH=/usr \
-D CMAKE_BUILD_TYPE:String="Release" ..
make
sudo make install
Protobuf¶
sudo pacman -S protobuf-c
ZeroMQ¶
sudo pacman -S zeromq
Building & Installing FRR¶
Add FRR user and groups¶
sudo groupadd -r -g 92 frr
sudo groupadd -r -g 85 frrvty
sudo useradd --system -g frr --home-dir /var/run/frr/ \
-c "FRR suite" --shell /sbin/nologin frr
sudo usermod -a -G frrvty frr
Compile¶
Clone the FRR git repo and use the included configure
script to configure
FRR’s build time options to your liking. The full option listing can be
obtained by running ./configure -h
. The options shown below are examples.
Note
If your platform uses systemd
, please make sure to add
--enable-systemd=yes
to your configure options.
git clone https://github.com/frrouting/frr.git frr
cd frr
./bootstrap.sh
./configure \
--prefix=/usr \
--includedir=\${prefix}/include \
--enable-exampledir=\${prefix}/share/doc/frr/examples \
--bindir=\${prefix}/bin \
--sbindir=\${prefix}/lib/frr \
--libdir=\${prefix}/lib/frr \
--libexecdir=\${prefix}/lib/frr \
--localstatedir=/var/run/frr \
--sysconfdir=/etc/frr \
--with-moduledir=\${prefix}/lib/frr/modules \
--with-libyang-pluginsdir=\${prefix}/lib/frr/libyang_plugins \
--enable-configfile-mask=0640 \
--enable-logfile-mask=0640 \
--enable-snmp=agentx \
--enable-multipath=64 \
--enable-user=frr \
--enable-group=frr \
--enable-vty-group=frrvty \
--with-pkg-git-version \
--with-pkg-extra-version=-MyOwnFRRVersion
make
sudo make install
Install FRR configuration files¶
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 /etc/sysctl.conf
[Create the file if it doesn’t exist] and
append the following values (ignore the other settings):
# Enable packet forwarding for IPv4
net.ipv4.ip_forward=1
# Enable packet forwarding for IPv6
net.ipv6.conf.all.forwarding=1
Reboot or use sysctl -p
to apply the same config to the running system.
Add MPLS kernel modules¶
To
enable, add the following lines to /etc/modules-load.d/modules.conf
:
# Load MPLS Kernel Modules
mpls_router
mpls_iptunnel
And load the kernel modules on the running system:
sudo modprobe mpls-router mpls-iptunnel
Enable MPLS Forwarding¶
Edit /etc/sysctl.conf
and the following lines. Make sure to add a line
equal to 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¶
sudo install -m 644 tools/frr.service /etc/systemd/system/frr.service
sudo systemctl enable frr
Start FRR¶
systemctl start frr