OpenBSD 6

Install required packages

Configure PKG_PATH

export PKG_PATH=$(uname -r)/packages/$(machine -a)/

Add packages:

pkg_add git autoconf-2.69p2 automake-1.15.1 libtool bison
pkg_add gmake gawk dejagnu openssl json-c py-test py-sphinx

Select Python2.7 as default (required for pytest)

ln -s /usr/local/bin/python2.7 /usr/local/bin/python

The libyang library can be installed from third-party packages available here.

Note: the libyang dev/devel packages need to be installed in addition to the libyang core package in order to build FRR successfully.

For example, for CentOS 7.x:

sudo rpm -i libyang-0.16.46-0.x86_64.rpm libyang-devel-0.16.46-0.x86_64.rpm

or Ubuntu 18.04:

sudo apt install libpcre3-dev
sudo dpkg -i libyang-dev_0.16.46_amd64.deb libyang_0.16.46_amd64.deb

Alternatively, libyang can be built and installed manually by following the steps below:

git clone
cd libyang
git checkout -b tmp origin/tmp
mkdir build; cd build
sudo make install

When building libyang on CentOS 6, it’s also necessary to pass the -DENABLE_CACHE=OFF parameter to cmake.

Note: please check the libyang build requirements first.

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 group and user

groupadd -g 525 _frr
groupadd -g 526 _frrvty
useradd -g 525 -u 525 -c "FRR suite" -G _frrvty \
    -d /nonexistent -s /sbin/nologin _frr

Download Source, configure and compile it

(You may prefer different options on configure statement. These are just an example)

git clone frr
cd frr
export AUTOCONF_VERSION="2.69"
export AUTOMAKE_VERSION="1.15"
export LDFLAGS="-L/usr/local/lib"
export CPPFLAGS="-I/usr/local/include"
./configure \
    --sysconfdir=/etc/frr \
    --localstatedir=/var/frr \
    --enable-multipath=64 \
    --enable-user=_frr \
    --enable-group=_frr \
    --enable-vty-group=_frrvty \
    --enable-configfile-mask=0640 \
    --enable-logfile-mask=0640 \
    --enable-fpm \
    --with-pkg-git-version \
gmake check
doas gmake install

Create empty FRR configuration files

doas mkdir /var/frr
doas chown _frr:_frr /var/frr
doas chmod 755 /var/frr
doas mkdir /etc/frr
doas touch /etc/frr/zebra.conf
doas touch /etc/frr/bgpd.conf
doas touch /etc/frr/ospfd.conf
doas touch /etc/frr/ospf6d.conf
doas touch /etc/frr/isisd.conf
doas touch /etc/frr/ripd.conf
doas touch /etc/frr/ripngd.conf
doas touch /etc/frr/pimd.conf
doas touch /etc/frr/ldpd.conf
doas touch /etc/frr/nhrpd.conf
doas chown -R _frr:_frr /etc/frr
doas touch /etc/frr/vtysh.conf
doas chown -R _frr:_frrvty /etc/frr/vtysh.conf
doas chmod 750 /etc/frr
doas chmod 640 /etc/frr/*.conf

Enable IP & IPv6 forwarding

Add the following lines to the end of /etc/rc.conf:

net.inet6.ip6.forwarding=1      # 1=Permit forwarding of IPv6 packets
net.inet6.ip6.mforwarding=1     # 1=Permit forwarding of IPv6 multicast packets
net.inet6.ip6.multipath=1       # 1=Enable IPv6 multipath routing

Reboot to apply the config to the system

Enable MPLS Forwarding

To enable MPLS forwarding on a given interface, use the following command:

doas ifconfig em0 mpls

Alternatively, to make MPLS forwarding persistent across reboots, add the “mpls” keyword in the hostname.* files of the desired interfaces. Example:

cat /etc/hostname.em0
inet mpls

Install rc.d init files

(create them in /etc/rc.d - no example are included at this time with FRR source)

Example (for zebra - store as /etc/rc.d/

# $OpenBSD: frr_zebra.rc,v 1.1 2013/04/18 20:29:08 sthen Exp $

daemon="/usr/local/sbin/zebra -d"

. /etc/rc.d/rc.subr

rc_cmd $1

Enable FRR processes

(Enable the required processes only)

echo "frr_zebra=YES" >> /etc/rc.conf
echo "frr_bgpd=YES" >> /etc/rc.conf
echo "frr_ospfd=YES" >> /etc/rc.conf
echo "frr_ospf6d=YES" >> /etc/rc.conf
echo "frr_isisd=YES" >> /etc/rc.conf
echo "frr_ripngd=YES" >> /etc/rc.conf
echo "frr_ripd=YES" >> /etc/rc.conf
echo "frr_pimd=YES" >> /etc/rc.conf
echo "frr_ldpd=YES" >> /etc/rc.conf