Quagga is an open source routing software based on the Zebra router. It supports the main standardised routing protocols such as RIP, OSPF or BGP and can be installed on any Linux system with a 2.4 or higher kernel.
Quagga is composed of several daemons, one per routing protocol and another one called Zebra acting as the kernel routing manager. Each daemon has its own configuration file and terminal interface which can be accessed by telnet.
The vtysh tool is provided to configure the Quagga router from the localhost, in a unique interface. Quagga works independently from the operational system (OS) over which it is installed.
The Quagga Command line Interface is very similar to the Cisco IOS software allows it to be configured very easily for those who are familiar with Cisco.
Quagga Installation Steps
To see the Quagga version available:
# apt-cache policy quagga
To install Quagga:
# apt-get install quagga
To see the Quagga dependencies:
# apt-cache depends quagga
Have to activate the Quagga daemons matching the routing protocols you want to set on your router.
# vim /etc/quagga/daemons
we need to create the zebra.conf, ospfd.conf and bgpd.conf files.
# cp /usr/share/doc/quagga/examples/zebra.conf.sample /etc/quagga/zebra.conf
# cp /usr/share/doc/quagga/examples/ospfd.conf.sample /etc/quagga/ospfd.conf
# cp /usr/share/doc/quagga/examples/bgpd.conf.sample /etc/quagga/bgpd.conf
To use vtysh, must first create its configuration file as follows:
# cp /usr/share/doc/quagga/examples/vtysh.conf.sample /etc/quagga/vtysh.conf
Give user and group ownership to respectively quagga and quaggavty to the files inside the /etc/quagga directory:
# chown quagga.quaggavty /etc/quagga/*.conf
# chmod 640 /etc/quagga/*.conf
Restart the Quagga service:
# /etc/init.d/quagga restart
By instance, to access the zebra daemon:
# telnet localhost 2601
Or
# vtysh
To access the ospf daemon:
#telnet localhost 2604
To access the bgp daemon:
#telnet localhost 2605
If you want to run a Quagga command from the Linux shell:
# vtysh -c “command”
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