Installing FRR

Syed Ibrahim — Fri, 19 Mar 2021 15:02:58 +0000

FRRouting (FRR) is an IP routing protocol suite for Linux and Unix platforms. It includes protocol daemons for BGP, IS-IS, LDP, OSPF, PIM, and RIP.

Since the FRR project was forked from Quagga, another routing protocol suite for Linux, FRR includes the fundamentals that made Quagga so popular as well as many other enhancements.

In this blogpost we will focus on how to install FRR on Debian based OS (such as Ubuntu) and on CentOS.

Installing on Ubuntu ( and other Debian based OS):



  
  
  add GPG key


curl -s https://deb.frrouting.org/frr/keys.asc | sudo apt-key add -

  
  
  possible values for FRRVER: frr-6 frr-7 frr-stable


  
  
  frr-stable will be the latest official stable release


FRRVER="frr-stable"

echo deb https://deb.frrouting.org/frr $(lsb_release -s -c) $FRRVER | sudo tee -a /etc/apt/sources.list.d/frr.list

  
  
  update and install FRR


sudo apt update && sudo apt install frr frr-pythontools

Installing in CentOS:



  
  
  possible values for FRRVER: frr-6 frr-7 frr-stable


  
  
  frr-stable will be the latest official stable release


FRRVER="frr-stable"

  
  
  add RPM repository on CentOS 6


curl -O https://rpm.frrouting.org/repo/$FRRVER-repo-1-0.el6.noarch.rpm

sudo yum install ./$FRRVER*

  
  
  add RPM repository on CentOS 7


curl -O https://rpm.frrouting.org/repo/$FRRVER-repo-1-0.el7.noarch.rpm

sudo yum install ./$FRRVER*

  
  
  add RPM repository on CentOS 8


curl -O https://rpm.frrouting.org/repo/$FRRVER-repo-1-0.el8.noarch.rpm

sudo yum install ./$FRRVER*

  
  
  install FRR


sudo yum install frr frr-pythontools

Configuring FRR for the first time

Enable IP forwarding

There are several kernel parameters that impact overall operation of FRR when using Linux as a router. Generally these parameters should be set in a sysctl related configuration file, e.g., /etc/sysctl.conf on Ubuntu based systems and a new file /etc/sysctl.d/90-routing-sysctl.conf on Centos based systems.



net.ipv4.conf.all.forwarding=1

net.ipv6.conf.all.forwarding=1

Enable BGPD daemon

After a fresh install, starting FRR will do nothing. This is because daemons must be explicitly enabled by editing a file in your configuration directory. This file is usually located at /etc/frr/daemons and determines which daemons are activated when issuing a service start / stop command via init or systemd. To enable a particular daemon, simply change the corresponding ‘no’ to ‘yes’. Subsequent service restarts should start the daemon.

To enable bpd daemon, in /etc/frr/daemons change bgpd=no to



bgpd=yes

Restart and enable FRR

Once you have enabled daemon, now restart FRR and enable FRR systemd service to start at boot using following commands.



systemctl restart frr.service

systemctl enable frr.service

Links for reference:

Image Source:

https://docs.cumulusnetworks.com/cumulus-linux-41/Layer-3/FRRouting-Overview/

iTerm2 + Oh My Zsh + Dracula theme + Plugins

Syed Ibrahim — Wed, 23 Sep 2020 13:47:56 +0000

iTerm2 and Oh-my-zsh

Download iTerm2

Download iTerm2 for MacOs from here
After downloading, drag and drop iTerm2 file to your Application folder.

Install oh-my-zsh
Open iTerm2 and run the following curl command which will install oh-my-zsh and replace default terminal with zsh.

sh -c "$(curl -fsSL https://raw.githubusercontent.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"

Dracula Theme
You can install using git:

git clone https://github.com/dracula/iterm.git

Activating theme

iTerm2 > Preferences > Profiles > Colors Tab
Open the Color Presets... drop-down in the bottom right corner
Select Import... from the list
Select the Dracula.itermcolors file
Select the Dracula from Color Presets...

Enabling Plugins (zsh-autosuggestions & zsh-syntax-highlighting)

Download zsh-autosuggestions using

git clone https://github.com/zsh-users/zsh-autosuggestions.git $ZSH_CUSTOM/plugins/zsh-autosuggestions

Download zsh-syntax-highlighting using

git clone https://github.com/zsh-users/zsh-syntax-highlighting.git $ZSH_CUSTOM/plugins/zsh-syntax-highlighting

To enable plugin, edit the ~/.zshrc file

vi ~/.zshrc

Find plugin using /plugin then press " i " to enter INSERT mode and
append zsh-autosuggestions & zsh-syntax-highlighting to plugins() like this



.  
.  
.  
# Which plugins would you like to load? (plugins can be found in ~/.oh-my-zsh/plugins/*)  
# Custom plugins may be added to ~/.oh-my-zsh/custom/plugins/  
# Example format: plugins=(rails git textmate ruby lighthouse)  
# Add wisely, as too many plugins slow down shell startup.  
plugins=(  
  git  
  docker  
  zsh-autosuggestions 
  zsh-syntax-highlighting
)

Run the following command to apply the changes



source ~/.zshrc

DEV Community: Syed Ibrahim

Installing FRR

Installing on Ubuntu ( and other Debian based OS):

add GPG key

possible values for FRRVER: frr-6 frr-7 frr-stable

frr-stable will be the latest official stable release

update and install FRR