CCENT (ICND1) - Anything Over IP

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CCENT (ICND1)

A collection of 20 posts

Configuring an IP address and Default-Gateway on a Cisco Switch

Configuring an IP address and Default-Gateway on a Cisco Switch

Configuring an IP address and default-gateway on a Cisco switch is a foundational skill that allows the switch to be managed remotely and communicate beyond its local network segment. This configuration is essential for network monitoring, troubleshooting, and centralized management. Why Configure an IP Address on a Switch? By default,

Restoring Cisco Router Configuration

Restoring Cisco Router Configuration

In this section we will look at the three methods to restore a Cisco router configuration. Method 1: Copy and Paste One method to restore a Cisco router configuration is to copy and paste the configuration commands directly into the console session. 1. Connect to the router via console or

Upgrading the IOS on a Cisco Router

Upgrading the IOS on a Cisco Router

When upgrading the IOS on a Cisco router, it's important to follow proper procedures to avoid damaging the device or causing network downtime. This guide will walk you through the process step by step. Prerequisites Before beginning the upgrade process, ensure you have: * Access to the router'

Backing Up the Running-Config and IOS

Backing Up the Running-Config and IOS

Backing Up the Running-Config and IOS It's always good practice to backup your router or switch configuration and IOS image. In this post I'll show you how to back these up to a TFTP server. Backing up the Running-Config To backup the running-config to a TFTP

Clock rate and Bandwidth commands

Clock rate and Bandwidth commands

Two commands in Cisco router configuration that often cause confusion are the clock rate and bandwidth commands. Let me explain the difference between these two important interface configuration commands. Clock Rate Command The clock rate command is used on serial interfaces to set the actual physical transmission speed of the

Configuring RIP on a Cisco Router

Configuring RIP on a Cisco Router

In this article, I will configure RIP (Routing Information Protocol) on a few Cisco routers in Packet Tracer to demonstrate how to set up dynamic routing with RIP. We'll look at the basic RIP configuration and some useful verification commands. I'll be using the following network

What is a Routing Protocol?

What is a Routing Protocol?

A routing protocol is a set of rules or standards that determine how routers communicate with each other to exchange information about network destinations. These protocols enable routers to build and maintain routing tables, which contain the best paths to reach different network destinations. Think of routing protocols as the

Interface Status

Interface Status

Interface Status There are several different statuses that interfaces can be in. The most common are: * Up/Up - This means the interface is functioning normally. Both the physical layer (layer 1) and the data link layer (layer 2) are operational. * Up/Down - This indicates that the physical connection

Configuring an IP address on a Cisco Device

Configuring an IP address on a Cisco Device

Configure a static IP address on an interface To configure a static IP address on an interface, you need to enter interface configuration mode and then use the ip address command to assign the IP address and subnet mask. Here's how to do it: Router> enable Router#

The difference between Run and Start and how to save!

The difference between Run and Start and how to save!

In this post I am going to explain the difference between the running and startup configuration files that are stored on Cisco devices. I will show you how to view both of these configuration files and how to save changes from the running to the startup configuration file (or vice

Banner - Message Of The Day (MOTD)

Banner - Message Of The Day (MOTD)

Setting up a Banner or Message of the Day (MOTD) Setting up a banner or Message of the Day (MOTD) on your Cisco devices is an important security and administrative practice. A banner provides information to users connecting to your device, whether they're legitimate administrators or unauthorized individuals

Setting the enable password and secret on a Cisco device

Setting the enable password and secret on a Cisco device

The enable password and enable secret are used to restrict access to privileged EXEC mode (also known as enable mode) on Cisco devices. Let's explore the differences between them and how to configure each. The difference between enable password and enable secret Both the enable password and enable

Configuring the Console port on a Cisco Device

Configuring the Console port on a Cisco Device

The console port on a Cisco device is primarily used for out-of-band management. This is usually the primary method of configuring a device for the first time. All Cisco routers and switches have a console port. Let me show you how to configure the console port on a Cisco device.

Useable IP addresses in private networks

Useable IP addresses in private networks

The goal of this post is to give a definitive answer to the question of the number of useable IP addresses for each private network. I say definitive because I've seen this number stated incorrectly in a few places. According to RFC 1918, we have three private network

Class-full IP Addresses

Class-full IP Addresses

Class-full IP Addresses IP addresses are divided into classes A, B, C, D and E. Classes A, B and C are used for addressing end devices like computers, printers, routers etc. Class D addresses are used for multicast and Class E addresses are reserved for experimental purposes. Class A Addresses

What is an IP address

What is an IP address

What is an IP address? An IP (Internet Protocol) address is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. Think of it as a postal address for your computer or device on the internet. Types of IP Addresses IPv4

How to convert Hexadecimal into Decimal

How to convert Hexadecimal into Decimal

Hello, we are going to be looking at how to convert hex to decimal. This is going to be quite important in the CCNA, especially when working with subnetting and access control lists. Hexadecimal is basically a base 16 number system (0 1 2 3 4 5 6 7 8

Navigating a Cisco device

Navigating a Cisco device

User Mode The first privilege mode you enter when you successfully access a Cisco device is the user mode. This mode allows you to execute a limited set of commands, mostly monitoring and troubleshooting commands. The prompt for user mode is: Router> Privileged Mode (Enable Mode) To access more

How to count in Binary

How to count in Binary

Understanding binary counting is fundamental for network engineers working with IP addressing, subnetting, and digital systems. Binary uses only two digits (0 and 1) instead of the ten digits (0-9) we use in decimal. Binary Place Values In decimal, each position represents a power of 10. In binary, each position

What is Binary?

What is Binary?

What is Binary? Binary is a number system that uses only two digits: 0 and 1. Unlike our everyday decimal system which uses ten digits (0-9), binary operates on base-2 mathematics. This system is fundamental to all computer operations, including networking equipment like Cisco routers and switches. Every piece of