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Before proceeding with the installation, make sure you have:

• Root access or a user with sudo privileges
• Functional network connection
• Basic knowledge of network routing

Installation of Quagga

1. Adding EPEL Repository Firstly, add the EPEL (Extra Packages for Enterprise Linux) repository, which contains the necessary packages for Quagga installation.

   sudo yum install epel-release -y
   

2. Installation of Quagga After adding the EPEL repository, install Quagga using YUM.

   sudo yum install quagga quagga-contrib -y
   ​

Configuration of Quagga

After installing Quagga, you need to configure its main components for dynamic routing.

1. Basic Configuration

   • Copy the sample configuration files to /etc/quagga.

     sudo cp /usr/share/doc/quagga*/zebra.conf.sample /etc/quagga/zebra.conf
     sudo cp /usr/share/doc/quagga*/ospfd.conf.sample /etc/quagga/ospfd.conf
     

   •  Set appropriate permissions for the configuration files.

     sudo chown quagga:quagga /etc/quagga/*.conf
     sudo chmod 640 /etc/quagga/*.conf
     

2. Zebra Configuration

   • Edit /etc/quagga/zebra.conf to match your network configuration.

     sudo nano /etc/quagga/zebra.conf
     

   • Add network interfaces and set IP addresses according to your network.

3. OSPF Configuration

   • Edit /etc/quagga/ospfd.conf for OSPF.

     sudo nano /etc/quagga/ospfd.conf
     

   • Configure OSPF according to your network, such as defining OSPF areas and specifying which interfaces should use OSPF.

Managing Quagga

1. Starting the Service

   • After configuration, start the Quagga services.

     sudo systemctl start zebra ospfd
     

   • Set the services to start at system boot.

     sudo systemctl enable zebra ospfd
     

2. Monitoring and Troubleshooting

   • Quagga offers tools for monitoring and troubleshooting, such as vtysh, a universal interface for managing Quagga routing protocols.

     sudo vtysh
     

   • Use show commands to retrieve information about the status of routing protocols, such as show ip route to display the routing table.

Quagga on CentOS 7 provides a robust platform for dynamic routing, supporting protocols like RIP, OSPF, and BGP. Thorough configuration and management are crucial for successful utilization of Quagga in your network environment. Regular monitoring and maintenance ensure stable and efficient network operations.