安装FRRouting

http://docs.frrouting.org/projects/dev-guide/en/latest/building-frr-for-centos7.html

CentOs7 ：
git clone https://github.com/frrouting/frr.git frr

或者
git clone -b stable/7.0 https://github.com/frrouting/frr.git frr

安装json

yum install json-c json-c-devel

2、一键安装解决依赖

 yum install git autoconf automake libtool make 
  readline-devel texinfo net-snmp-devel groff pkgconfig 
  json-c-devel pam-devel bison flex pytest c-ares-devel 
  python-devel systemd-devel python-sphinx libcap-devel

yum -y install cmake

安装yang

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

配置用户组

[root@host-10-10-18-195 yang]# vim frr.sh
groupadd -g 92 frr
groupadd -r -g 85 frrvty
useradd -u 92 -g 92 -M -r -G frrvty -s /sbin/nologin 
  -c "FRR FRRouting suite" -d /var/run/frr frr

[root@host-10-10-18-195 yang]# bash frr.sh
groupadd: group 'frr' already exists
groupadd: GID '85' already exists
useradd: group 'frrvty' does not exist

配置

git clone https://github.com/frrouting/frr.git frr
cd frr
./bootstrap.sh
./configure 
    --bindir=/usr/bin 
    --sbindir=/usr/lib/frr 
    --sysconfdir=/etc/frr 
    --libdir=/usr/lib/frr 
    --libexecdir=/usr/lib/frr 
    --localstatedir=/var/run/frr 
    --with-moduledir=/usr/lib/frr/modules 
    --enable-snmp=agentx 
    --enable-multipath=64 
    --enable-user=frr 
    --enable-group=frr 
    --enable-vty-group=frrvty 
    --enable-systemd=yes 
    --disable-exampledir 
    --disable-ldpd 
    --enable-fpm 
    --with-pkg-git-version 
    --with-pkg-extra-version=-MyOwnFRRVersion 
    SPHINXBUILD=/usr/bin/sphinx-build


make
make check
sudo make install

[root@host-10-10-18-195 frr-stable-7.3]# install -p -m 644 tools/etc/frr/daemons /etc/frr/
[root@host-10-10-18-195 frr-stable-7.3]# chown frr:frr /etc/frr/daemons
[root@host-10-10-18-195 frr-stable-7.3]# 

[root@host-10-10-18-195 frr-stable-7.3]# touch /etc/sysctl.d/90-routing-sysctl.conf

[root@host-10-10-18-195 frr-stable-7.3]# vim /etc/sysctl.d/90-routing-sysctl.conf
# Sysctl for routing
# #
# # Routing: We need to forward packets
net.ipv4.conf.all.forwarding=1
net.ipv6.conf.all.forwarding=1

[root@host-10-10-18-195 frr-stable-7.3]# sysctl -p /etc/sysctl.d/90-routing-sysctl.conf
net.ipv4.conf.all.forwarding = 1
net.ipv6.conf.all.forwarding = 1

[root@host-10-10-18-195 frr-stable-7.3]# install -p -m 644 tools/frr.service /usr/lib/systemd/system/frr.service
[root@host-10-10-18-195 frr-stable-7.3]# systemctl preset frr.service
[root@host-10-10-18-195 frr-stable-7.3]# systemctl enable frr
Created symlink from /etc/systemd/system/multi-user.target.wants/frr.service to /usr/lib/systemd/system/frr.service.
关掉quagga
[root@host-10-10-18-195 frr-stable-7.3]# service bgpd stop
Redirecting to /bin/systemctl stop bgpd.service
[root@host-10-10-18-195 frr-stable-7.3]# service zebra stop
Redirecting to /bin/systemctl stop zebra.service

配置文件目录

--enable-vty-group=frrvty 
原来是忘记执行：

useradd -u 92 -g 92 -M -r -G frrvty -s /sbin/nologin 
  -c "FRR FRRouting suite" -d /var/run/frr frr