Quagga is one of the core open source project which is used to provide routing services on linux platform. It consist of different components for different dynamics protocols such as Open Shortest Path First (OSPF), Routing Information Protocol (RIP), Border Gateway Protocol (BGP), Intermediate System to Intermediate System (IS-IS) and Multiprotocol Label Switching (MPLS). Partially it provides the same virtual terminal or CLI (vty/vtysh) like CISCO/JUNIPER for the configuration of protocols.
In this article, we will install Quagga routing suite on Ubuntu platform. Details of our VM is shown below.
Quagga can be installed from source code however, in this article we will install deb/binary package.
Run below command to check dependencies of Qugaaga package.
#apt-cache depends quagga
Output of the above command is shown below.
Run following command to install Qugaaga routing software.
#apt-get install quagga
Quagga package installation is shown in following figure.
Default configuration of linux based devices does not support packet forwarding until enable few kernel parameters.
Enable packet forwarding for IPv4 using following commands which is shown in figure. Setting will be permanently saved in /etc/sysctl.conf file.
$echo "net.ipv4.conf.all.forwarding=1" | sudo tee -a /etc/sysctl.conf $echo "net.ipv4.conf.default.forwarding=1" | sudo tee -a /etc/sysctl.conf $sudo sysctl -p
After enabling packet forward, now we will configure Quagga routing software to run on linux. Following configuration required to run Quagga daemon on Ubuntu.
babeld.conf bgpd.conf bgpd.conf isisd.conf ospf6d.conf ospfd.conf ripd.conf ripngd.conf vtysh.conf zebra.conf
User can create these configuration files or copy these sample files from /usr/share/doc/quagga/examples/ path to /etc/quagga/*.conf path.
Copying sample files under /etc/quagga/ path is shown in following figure.
Rename samples files after copying in /etc/quagga directory.
test@test-machine:/etc/quagga$ sudo mv babeld.conf.sample babeld.conf test@test-machine:/etc/quagga$ sudo mv isisd.conf.sample isisd.conf test@test-machine:/etc/quagga$ sudo mv ospfd.conf.sample ospfd.conf test@test-machine:/etc/quagga$ sudo mv ripngd.conf.sample ripngd.conf test@test-machine:/etc/quagga$ sudo mv zebra.conf.sample zebra.conf test@test-machine:/etc/quagga$ sudo mv bgpd.conf.sample bgpd.conf test@test-machine:/etc/quagga$ sudo mv ospf6d.conf.sample ospf6d.conf test@test-machine:/etc/quagga$ sudo mv ripd.conf.sample ripd.conf test@test-machine:/etc/quagga$ sudo mv vtysh.conf.sample vtysh.conf
Quagga daemon run under user quagga therefore change the ownership and permission for configuration files. User quagga is created in Ubuntu during package installation.
Run following commands under /etc/quagga folder to change owner ship and permission.
$sudo chown quagga:quagga *
Permission "640" is already set on the files.
In the end, we have to enable or disable different daemons of Quagga. Zebra daemon is the core part of routing suite so it must be enabled in /etc/quagga/daemons file. In this article, only OSPF and RIP dynamic protocol daemons are enabled in the file.
Default configuration of daemons file is shown in the following snapshot. All routing daemons are disabled in the default configuration file.
Configuration file with OSPF and RIP enabled is shown below.
Different daemons of Quagga suite will run on TCP protocol and listening ports will be from 2600-2800.
test@test-machine:/etc/quagga$ cat /etc/services | grep zebra zebrasrv 2600/tcp # zebra service zebra 2601/tcp # zebra vty ripd 2602/tcp # ripd vty (zebra) ripngd 2603/tcp # ripngd vty (zebra) ospfd 2604/tcp # ospfd vty (zebra) bgpd 2605/tcp # bgpd vty (zebra) ospf6d 2606/tcp # ospf6d vty (zebra) isisd 2608/tcp # ISISd vty (zebra)
Start Quagga routing suite using following command.
$sudo /etc/init.d/quagga restart
Using netstat command, we can confirm successful running of daemons.
$sudo netstat -antp | grep 260
Quagga routing can be configured using following ways.
vtysh telnet (telnet 127.0.0.1 ospfd/ripd/bgpd/zebra)
vtysh provides single place for the configuration of all daemons. Type following command in terminal to start virtual shell (vtysh) for Quagga configuration
Zebra, ospfd and ripd can be configured using vtysh.
Daemons configuration using telnet command is shown in following figures.
$telnet localhost zebra
$telnet localhost ospfd
$telnet localhost ripd
Quagga routing suite is mostly used on linux platform to perform dynamic routing. In this article, we learned installation, configuration and usage of Quagga routing suite. It supports multiple ways to configure routing protocols such as OSPF and RIP. Quagga based routing devices can be used for small and medium enterprises (SME).