Archive for the ‘ENSA’ Category

Activate Cisco IOU License in GNS3 Introduction: GNS3 is a powerful network simulation tool used by networking professionals for testing and learning purposes. One of its features is the ability to run Cisco IOU (IOS on Unix) images for virtualizing Cisco routers and switches. However, to use Cisco IOU images legally, you need to activate […]

Role-Based CLI Access: Admin, Operator, and Viewer Levels In a Role-Based CLI Access environment, there are three distinct access levels: admin, operator, and viewer. Each level corresponds to a set of privileges and commands. Let’s explore each level in detail: Admin Level: The admin level has the highest privilege, granting full access to all commands […]

Definition of Role-Based CLI Access: Role-Based Command Line Interface (CLI) Access is a security feature implemented in network devices that allows administrators to define and assign specific roles or permissions to users based on their responsibilities. This approach enhances security by ensuring that users only have access to the commands and configurations necessary for their […]

Configuration for GLBP Before diving into the load balancing methods within GLBP, let’s start with the basic configuration of GLBP. RouterA(config)# interface GigabitEthernet0/0 RouterA(config-if)# ip address 192.168.1.1 255.255.255.0 RouterA(config-if)# glbp 1 ip 192.168.1.254 RouterA(config-if)# glbp 1 priority 100 RouterA(config-if)# glbp 1 preempt In this initial configuration, we’ve set up RouterA for GLBP with group 1, […]

VTP Configuration Commands: Task Command Syntax Configure the VTP version vtp version {1 | 2 | 3} Configure the VTP domain name vtp domain domain-name Configure the VTP mode for a switch vtp mode { server | client | transparent | none} Configure a switch to become the primary VTP server vtp primary Switchport and […]

In the ever-evolving landscape of cybersecurity, the need for skilled professionals who can safeguard networks and data has never been greater. The journey to becoming a cybersecurity expert often begins with certifications, and while there are various paths to choose from, one common thread among them is the fundamental knowledge of networking and routing. In […]

CCNA stands for Cisco Certified Network Associate. It is an entry-level certification offered by Cisco Systems, a leading provider of networking and telecommunications equipment. CCNA validates the knowledge and skills required to install, configure, operate, and troubleshoot small to medium-sized networks. CCNA is important for several reasons: 1. Industry Recognition: CCNA is recognized worldwide as […]

Objective: To understand how to work with inter-VLAN routing using Layer 3 switch SVI (Switched Virtual Interface) interface. Steps to Configure Inter-VLAN Routing: 1. Configure VLANs: Start by creating the VLANs you want to use for inter-VLAN routing. Assign unique VLAN IDs and assign the required interfaces to their respective VLANs. 2. Enable IP routing: […]

To configure and monitor OSPF (Open Shortest Path First) on a Cisco router, you can use various commands. These commands allow you to enable OSPF, modify OSPF settings for interfaces, view OSPF information, and more. Below is a list of commonly used OSPF commands along with their details: Command Details router ospf 123 Turns on […]

Understanding Administrative Distance in Cisco Routers: Importance and AD Values

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Administrative Distance (AD) in Cisco Routers Definition The administrative distance (AD) is a numerical value assigned to different routing protocols in Cisco routers. It determines the preference or trustworthiness of routes when multiple routing protocols are present. Purpose The purpose of administrative distance is to select the best route among multiple available routes to reach […]