CCNA1-ITNv7 - Module 02 - Basic Switch and End Device Configuration config

Summary

This video script from an 'Introduction to Networking' course covers fundamental Cisco IOS navigation and device configuration. It introduces the concept of operating systems in networking devices, the transition from graphical to command line interfaces, and the importance of secure shell (SSH) for remote access. The script details the process of configuring basic settings on Cisco devices, including device naming, password security, and interface configuration. It also explains how to save configurations and verify connectivity using commands like ping and trace route. The course emphasizes practical skills, with a focus on hands-on lab exercises to reinforce learning.

Takeaways

• 💻 Cisco IOS is the operating system used on Cisco networking devices, providing a command-line interface for device management.
• 🔌 To access the command line on Cisco devices, use a console cable or remotely via SSH for secure access.
• 📈 The script introduces different modes of Cisco IOS, including User EXEC, Privileged EXEC, and Global Configuration modes, each with varying levels of access and commands.
• 🛠️ Basic commands and navigation within Cisco IOS are crucial for configuring and managing Cisco devices.
• 🔑 Passwords can be set and encrypted for secure access to Cisco devices, with best practices for password strength emphasized.
• 🏷️ The script explains how to configure device names and banners for identification and security purposes.
• 💾 Saving configurations is essential to retain settings after a device reboot, which is done by copying the running configuration to the startup configuration.
• 🔌 The importance of physical connections via copper, fiber, or wireless interfaces is highlighted, along with the need for appropriate network interface cards.
• 📍 Static IP addressing is discussed, including how to manually assign IP addresses to devices for network communication.
• 🔍 Verification of connectivity and device configuration is done using commands like ping and traceroute, ensuring devices can communicate effectively on a network.

Q & A

What is the main focus of the 'Introduction to Networking' course, specifically in the context of the CCNA version 7 curriculum?

The main focus of the 'Introduction to Networking' course, as per the CCNA version 7 curriculum, is to cover basic switch and device configuration, including understanding Cisco IOS, navigating the command line structure, configuring basic Cisco devices, saving configurations, and verifying communication between devices on a LAN.

What is the role of an operating system in networking devices?

In networking devices, the operating system manages the communication between the hardware and the software, providing a kernel that allows user interaction with the hardware. It facilitates interaction with the device, making it easier through graphical or command line interfaces.

How has the method of connecting to Cisco routers evolved from Telnet to a more secure alternative?

The method of connecting to Cisco routers has evolved from using Telnet, which transmits data in plain text and is not secure, to Secure Shell (SSH), which establishes a remote command line with encryption, assuming it has been set up correctly.

What is the significance of different modes in Cisco IOS, and how do they affect the operations of a device?

Different modes in Cisco IOS, such as User EXEC mode, Privileged EXEC mode, and Global Configuration mode, are significant because they determine the level of access and commands available to the user. User EXEC mode provides limited access, while Privileged EXEC mode allows more options. Global Configuration mode is used for making broader changes to the device's settings.

How can one navigate between different modes in Cisco IOS?

To navigate between different modes in Cisco IOS, one would use commands like 'enable' to move from User EXEC mode to Privileged EXEC mode, 'configure terminal' to enter Global Configuration mode, and 'exit' or 'end' to move back to a previous mode or to exit a configuration mode.

What are some command line navigation tips and shortcuts mentioned in the script?

Some command line navigation tips and shortcuts include using 'conf t' or 'configure terminal' to enter configuration mode, 'end' or 'control z' to return to Privileged EXEC mode from a sub-interface, and using 'tab' to auto-complete commands. Additionally, 'control c' can abort configurations, and 'shift 6' can be used as an all-purpose break sequence.

What is the importance of naming networking devices and what are the guidelines for doing so?

Naming networking devices is important for identification and management purposes. The guidelines for naming include starting with a letter, having no spaces, ending with a letter or digit, and allowing only letters, digits, and dashes within the name, which should be between 1 and 64 characters in length.

How does one configure a password for secure access in Cisco devices?

To configure a password for secure access in Cisco devices, one would use commands like 'password' for plain text or 'secret' for hashed passwords within the appropriate configuration mode, such as 'line console 0' or 'line vty 0' for virtual terminals.

What is the purpose of setting a banner message in a Cisco device, and how is it done?

The purpose of setting a banner message in a Cisco device is to display a legal or informational message upon login, typically indicating that only authorized personnel should access the device. It is set using the 'banner motd' command, followed by the message enclosed in delimiter characters.

How can one save configurations in a Cisco device to ensure they persist after a reboot?

To save configurations in a Cisco device so they persist after a reboot, one would use the 'copy running-config startup-config' command from Privileged EXEC mode, which saves the current running configuration to the startup configuration that is loaded upon reboot.

What are the different types of physical media connections discussed in the script, and how do they relate to the networking devices?

The script discusses copper-based connections using Ethernet cables with RJ45 connectors, fiber optic connections with various media types and plugins, and wireless connections requiring a wireless NIC. These physical media connections relate to networking devices by providing the necessary interfaces for connectivity.

Outlines

00:00

🌐 Introduction to Cisco IOS and Networking Devices

The paragraph introduces the course on networking, specifically the CCNA version 7 curriculum. It focuses on basic switch and device configuration, covering topics like Cisco IOS navigation, command line structure, configuring Cisco devices, saving configurations, port communication, and verifying communication between devices on a LAN. The instructor emphasizes the importance of understanding the operating system of networking devices, comparing it to client operating systems like Windows or Linux, and introduces the concept of command line interfaces as a stable alternative to graphical interfaces. The lesson also explains how to access the command line through console cables and the transition from Telnet to SSH for security reasons.

05:00

🔐 Navigating Cisco IOS Modes and Commands

This section delves into the different modes of Cisco IOS, highlighting the distinction between User EXEC mode (indicated by a '>') and Privileged EXEC mode (indicated by a '#'). The paragraph explains that the mode determines the range of commands available to the user. It also covers global configuration mode and how to navigate between these modes using commands like 'enable' and 'configure terminal'. The importance of understanding where certain commands can be issued is stressed, and the paragraph provides examples of how to move between different configuration modes. The concept of command structure is introduced, explaining the use of keywords, arguments, and the significance of spacing in commands.

10:01

🛠 Command Line Interface (CLI) Navigation and Configuration

The paragraph discusses the process of configuring networking devices using the command line interface. It explains how to access the global configuration mode and the importance of naming devices for easier identification. The paragraph provides guidelines for setting device names and emphasizes the need for secure password practices, suggesting the use of a combination of uppercase, lowercase, numbers, and special characters. It also touches on the difference between plain text and encrypted passwords, using the commands 'password' and 'secret' respectively. Additionally, the paragraph introduces the concept of setting banners for legal messages and the use of command shortcuts and hotkeys for efficient navigation.

15:02

💾 Saving Configurations and Understanding Device Interfaces

This section explains the importance of saving configurations to prevent loss of settings upon device reboot. It outlines the process of saving the running configuration to the startup configuration using the 'copy run start' command. The paragraph also discusses how to erase the startup configuration and the necessity of reloading the device for changes to take effect. Furthermore, it covers the basics of device interfaces, differentiating between copper, fiber, and wireless connections, and the requirement for appropriate Network Interface Cards (NICs) for each type of connection.

20:04

📡 Configuring IP Addresses and Physical Media Connections

The paragraph focuses on assigning IP addresses to devices, either statically or dynamically, and the role of DHCP in dynamic address assignment. It provides a brief overview of how to manually configure IP addresses on devices like Windows PCs and how to assign IP addresses to switches for management purposes. The paragraph also discusses the physical aspects of connecting devices, including the use of Ethernet cables for copper connections, fiber cables for fiber optic connections, and the need for wireless NICs for wireless connections. It sets the stage for verifying connectivity through commands like 'ping' and 'trace route' in subsequent lessons.

25:07

🔬 Lab Setup and Review of Module Learnings

The final paragraph summarizes the module's content, which includes an understanding of Cisco IOS structure, navigation, and the physical mediums for connecting devices. It also reviews the basics of IP addressing and the allocation of static and dynamic IP addresses to devices. The paragraph concludes with a mention of an upcoming lab where students will apply the learned skills to configure switches and routers, set up topologies, and reinforce the concepts covered in the module. The instructor invites questions and thanks the audience for their attention.

Keywords

💡CCNA

CCNA stands for Cisco Certified Network Associate, which is an entry-level certification program for networking professionals. In the context of the video, the course is designed to prepare individuals for the CCNA version 7 curriculum, focusing on fundamental networking concepts and skills.

💡Cisco IOS

Cisco IOS, now known as Cisco Internetwork Operating System, is the software used on most Cisco Systems' network equipment. It is the backbone of Cisco networking devices, providing the command-line interface for device configuration and management. The video discusses the importance of understanding Cisco IOS for basic device navigation and configuration.

💡Command Line Interface (CLI)

The Command Line Interface is a text-based interface used to interact with computer systems. In the video, the CLI is emphasized as the primary method for managing Cisco networking devices, contrasting with graphical user interfaces. It is where commands are issued to configure and troubleshoot network devices.

💡Console Cable

A console cable is a specific type of cable used to connect a computer directly to a networking device for management purposes. The video mentions the use of a console cable to access the command line interface of Cisco devices, which is crucial for initial setup and troubleshooting.

💡SSH (Secure Shell)

SSH is a protocol used to securely access a remote computer. The video explains that SSH replaced Telnet for connecting to Cisco routers because it provides encryption, making the connection more secure against eavesdropping and other network attacks.

💡User EXEC Mode

User EXEC mode is a restricted command mode in Cisco IOS that allows only limited commands to be executed. The video describes this mode as the starting point for users, where they can perform basic operations like pinging a device or viewing basic information.

💡Privileged EXEC Mode

Privileged EXEC mode is an advanced command mode in Cisco IOS that provides access to a broader set of commands than User EXEC mode. The video explains that to enter this mode, users must issue the 'enable' command, which is necessary for more complex configurations and management tasks.

💡Global Configuration Mode

Global Configuration Mode is a command mode in Cisco IOS used to configure settings that apply to the entire device. The video mentions that to enter this mode, one would use the 'configure terminal' command, which is essential for making widespread changes to the device's configuration.

💡Port Security

Port security is a feature used to restrict unauthorized devices from connecting to a switch port. The video touches on this concept as part of the broader discussion on switch configuration, emphasizing the importance of securing network access points.

💡IP Addressing

IP addressing refers to the method of assigning unique identifiers (IP addresses) to devices on a network. The video discusses static IP addressing, where an administrator manually assigns IP addresses to devices, as opposed to dynamic addressing, which is typically assigned via DHCP.

💡Packet Tracer

Packet Tracer is a network simulation tool used for educational purposes. The video mentions Packet Tracer as a tool that can be used to practice and reinforce the concepts learned, such as device configuration and network setup.

Highlights

Introduction to Networking course, focusing on CCNA version 7 curriculum.

Module 2 covers basic switch and device configuration.

Discussion on basic Cisco IOS navigation and command line structure.

How to configure a basic Cisco device and save configurations.

Explaining port communication and medium.

Guidance on configuring addresses for host devices.

Verification of communication between devices on a LAN.

Operating systems for networking devices compared to client OS like Windows 10 or macOS.

Difference between graphical user interfaces and command line interfaces.

Cisco networking devices typically use command line only.

Accessing the command line through console cables and terminal emulators like Telnet and SSH.

Explanation of different modes in Cisco IOS and their significance.

Navigating between user exec mode, privileged exec mode, and global configuration mode.

Command structure and syntax in IOS.

Hotkeys and shortcuts for efficient command line navigation.

Configuring devices in global configuration mode.

Setting device names and password guidelines.

Saving configurations to prevent loss after device restart.

Configuring host devices with ports and IP addresses.

Differences in physical media connections: copper, fiber optic, and wireless.

Basic IP addressing for communication between devices.

Upcoming lab exercises to reinforce learned concepts.

Summary of module learning outcomes, covering Cisco IOS structure, navigation, and device mediums.

Transcripts

welcome to my introduction to networking

course typically

abbreviated it in this will be

for the ccna version 7

curriculum

welcome to module 2 basic switch and in

device configuration

we're going to be talking about basic

basic

cisco ios ios and navigation the command

line structure

how to configure a basic cisco device

how to save

the configuration we're going to talk

about some basic

port communication and medium

talk about how to configure addresses

for host devices

and then how we can verify communication

between those two devices

on a lan so we have a lot to cover in

this chapter

most of this is going to be basic layer

2 and basic

navigation of the devices so let's go

and jump right in

first section is cisco ios

so when we think a computer or computing

device

there is some type of operating system

that runs that hardware

and typically the hardware is the

physical part

then the kernel is the communication

between the hardware and the software

and then there is the shell the software

portion

we the user interact with the shell or

software

so we have to have something that will

manage between

us and the hardware and that's where

that kernel comes into play

more often than not we think of like a

client operating system like windows 10

or

a mac os or linux os

but that's not the only thing

networking devices do have their own

operating system

while windows 10 has a gui a graphical

user interface

sometimes these guise may fail so

we actually have a command line version

that works just as well

it's not as graphical but you don't have

to worry about the graphical portion

crashing and then you losing the ability

to interact with it

so with that we have certain versions of

linux that are both graphical

and command line so it just kind of

depends on what you're looking for

and the stability that you are looking

for as well

the purpose of an operating system is

again to allow us to interact with the

hardware

but to make it easier so if we're

dealing with a graphical

interface we have a mouse we have a

keyboard we can move the mouse we can do

things

while we also have a text portion of the

operating system

we have a command line that we can also

navigate to and from

if necessary well

in certain operating systems they don't

have a graphical interface

so you can actually choose not to deal

with a graphical user interface

if necessary most cisco networking

devices that we will be dealing with

are strictly command line only so how do

we access the command line

we access it through a console cable

this is a traditional console cable up

here it's a db9 on one side

and an rj45 with the correct pin out

on the other we used to use

a program called telnet to

actually connect to a cisco router

however telnet's all plain text

and it's not shown to be secure so that

was replaced with

secure shell ssh and this establishes

again a remote command line but this

allows for encryption

assuming that it has been set up both

secure shell

and telnet can be used when connecting

to the

networking devices console ports the

console port is a management port

that is used to lo and behold

manage the actual device but that means

you have to have physical access

to the device so these types of programs

like telnet and ssh are actually called

terminal emulators they allow us to

emulate a terminal to the device so once

we've actually connected

to the device we have to understand our

ios navigation

one of the big things is the different

modes and that's going to be an

important thing

starting out because how the devices

operate is really depending on the mode

that they are in

here we have a device name like router

switch and a carriage

this is called the exact mode or the

user exec mode

and this allows us very limited access

to what we can

do again you'll notice the carrot

versus our privilege exact mode which

will be a

pound this allows us access to greater

options so here i dragged a

router center in packet tracer i brought

a router up and running

and i just want to access the terminal

so you'll notice we have just our router

and our carrots

do question mark that's what we can do

we can do ping

we can do disable we can do some basic

show commands

and that's it if i type enable

we'll go to our privileged exact mode

and you'll notice the amount of commands

we can do

are tremendously the list we can do is

way longer so again depending on the

mode that we're operating in

we can do different things and this will

become second nature to you

as we use the devices more because

it's just it becomes muscle memory at

that point

after that we have our global

configuration

you'll notice it will go to a config

if we are configuring a line specific

item like a console

or a virtual terminal we will get a line

if we are looking at a interface

we will be actually at a sub command the

config

hyphen if these are just some of the

interfaces not all of them

so as we dive deeper into the devices

we will actually be reviewing additional

config line syntax and whatnot

so again there are there is no video for

this but there is a difference between

the user exec mode privilege exact mode

on our global configuration mode

and how we navigate between them as well

as

how we issue commands each one of them

so how do we navigate between them if we

are at

a user mode and we want to go to a

privileged exact mode

we will do an enable that allows us to

go to our

privileged exec mode if we want to

exit out we would type exit how do we go

to our global configuration we could

type configure terminal

hit enter that takes us from our

privilege exec mode and puts us in our

global configuration mode

that would be this guy right here if we

want to go back to our privileged exact

mode we would do exit and it would

take us back to our privileged exec mode

if we want to configure

a line console for example

in our global configuration we would

type line

control 0 and that will allow us to go

to our

line some commands can only be issued at

certain locations

so depending at where you are located

are you in the config mode are you in

the config

tech line mode are you in the config if

mode

certain commands can only be issued in

certain areas so we do need to keep that

in mind

as we are talking about the navigation

of the ios

so again learning basic line and

console navigation so

if we are looking at a line console

again we have that sub interface

we can return to the privileged exec

mode by doing end

or by doing a control z

and will take us all the way back

exit takes us one step out

so if we were in the config tag line and

we type

exit it will take us back to the config

and takes us

all the way back to our privileged exec

mode the control z

is one that you do want to know i have

seen that pop up on a few exams before

just fyi so to move directly from one

sub

configuration console to another you can

actually

navigate navigate that way so if we're

at the

config tag if and we type

line console 0 hit enter it will take us

directly to the config

dash line so some of those are just

going to be

times playing with the command line for

us to get familiar with but don't

stress too much we actually do have a

lab coming up that will help us

go through that i have prepared other

videos

that walk us through the navigation so

you should be good with that

so let's talk about the command

structure

as we issue commands we should have a

prompt

that will be like the switch and

whatever mode we're in

next would be the command there should

be a space

and there will be either a keyword or an

argument

again spacing is important but you need

to be careful

if you do two spaces for example

it will think the second space is part

of the argument

so the command line is pretty strict on

how we do certain things

so basic uh syntax

would be if it's bold it's required

if it's italian a size it may not be

some are going to be optional

some may not so for example

if we are looking at a

help section ping space notice ping is

in bold

ip address is not and it's italicized

it's letting us know that ping is the

command and that's the argument

if we do switch port security aging

this is a

an actual printout of the command set

notice we have static we have time we

have time that is not italicized

and not bolded and then we have type and

the type would be either absolute or

inactive

so part of this is learning how we could

decode our command line

this is an example of a multi-argument

command

where these are singular argument

commands

ios does have a nice help feature if you

do a question mark

it will print out the commands if you

already have part of a command written

and you do question mark

it will be the next part of the command

if you fat finger something or if you

try to issue a command at the wrong

level you will actually get an invalid

input

i have already prepared videos and

linked them as well

in the help or in the chat so

again some of these videos you can watch

later

so hot keys and shortcuts you don't

always have to type out the entire

command

to go from the privileged execs to

configuration is configure terminal or

conf t however if

there could be multiple commands with

the same amount of letters

you'll get a ambiguous command here we

have a router

and we're issuing a co in command well

there are two commands that start with

con

configure and connect so this is

ambiguous

it doesn't know which one you're trying

to do if you did c-o-n-f

it would know it's configure if you did

c-o-n-n

it would know that you're typing in

connect so it really just depends

so there's a few other tips things like

typing out a command

you can hit tab and it will actually

complete out the rest of the command

assuming it's not ambiguous

backspace will erase your character you

can

move the cursor up and down characters

by the left arrow right arrow

up arrow up arrow actually will show you

the history

and you can actually go up multiple

commands that you previously typed uh

other

shortcuts are things like control z

which we've already talked about

control c when in a configuration mode

will in the configuration mode and

kick you back out to the privileged

exact mode

shift 6 will be an all-purpose brake

sequence

so that you uh can break up

or kill like a dns lookup or a trace

route or a ping

if any of them get stuck

space bar again uh if we if we have a

multi-screen help

space bar will show next screen

enter hit someone uh at a time one line

at a time

so again just some of this is going to

be hit and miss

while we are practicing our different

commands

again we've done videos on the shortcut

keys

we have a packet tracer file as well

and we have one to do basic navigation

so let's go ahead let's jump directly

into

how we can configure the devices now

not just look at navigation

so again most of the configuration is

going to be done at

the global configuration mode so how do

we get there

we log into the device we go from the

user exact mode

type enable that gets us to our

privileged exact mode

that would be the pound sign

from there we gotta get to our global

configuration mode

so conf t or configure terminal hit

enter

that lets us log into the configuration

mode

so we need to first thing we're going to

do is probably name the device

that way it's not just called switch or

router we need to give it a

meaningful name so when we are naming

devices

it has to start with a letter has no

spaces

and it must end with a letter or a digit

only letters digits and dashes can be

present and it can be between

1 and 64 characters in length

we can also set passwords most the time

in the cisco curriculum we are using

cisco

or class however these are really weak

passwords

so we need to not use them in

real world so some good password

guidelines is use passwords that are

greater than eight characters in length

combination of uppercase lowercase

special characters and numbers

avoid using the same password for all

devices avoid

using passwords that are not encrypted

on the device

if we are assuming we're using passwords

for network devices

but i mean for this example that's kind

of what we're doing don't use commonly

guessed words

either so again we're talking

about how to best

use the information that we do have so

if we all

know that a common password is password

we probably want to steer clear of it so

let's talk how do we configure passwords

well we can configure a plain text

password by using the command

password and then the

password we want to set however this is

not

very secure so here we have a

we're configuring a basic password for

the align console 0

we set the password to cisco we set it

to login

we can uh when we go to actually connect

this is going to be the password we

connect with we have

the ability to also configure the

terminal with the password as well

we would do enable and then we would

either do password or secret

and then the password that if we do the

word password

here it's a plain text password if we do

the word

secret it will actually hash

our password

if we're talking how to configure a

switch we also have a virtual terminal

so we also want to set our passwords for

our virtual terminal again you go to

that line

you type in the password space whatever

password you want

and so forth so we talked about

encrypting passwords

here we actually have

encrypted passwords even though we did

not

encrypt the passwords we used the word

the command password

and then we did cisco for example well

why are these hashed values they're

hashed values because we did a

password encryption service that

actually

turned on encryption for all passwords

so that makes these passwords cached

even though we didn't hash them to begin

with

this service does it for us

so now that we've talked about naming

and passwords

let's talk about how to set a banner

when you log into the device

here is a message how do we set that

message

we do that by typing banner motd

a special character type the message end

with the same special character

that allows us to set our messages

and this should be some form of legal

message saying

authorized personnel only or

something of that nature the

pound signs here are delimiter factors

or demeter

uh characters they don't have to be

count a pound

but whatever you start with you need to

end with

again there's a video covering that

which has already been posted

so let's talk how do we save our

configuration

if you are doing the configuration it is

stored as a

running configuration the issue is if

the device restarts anything

that's running that hasn't been saved

will not

be there so we need to actually save the

running configuration we save it to the

startup configuration the

startup configuration will be the config

that the device will actually load

the running config will be the actual

configuration

as you've modified it if you've not

saved

the running configuration and it is

rebooted

whatever startup configuration is there

is what will

load so how do we save it

in a global config we can do a

sorry not in global config if

we make the any modification in our

global configuration

we should be saving our config we do the

saving by going to our privileged exact

mode

and typing copy run

running hyphen config space startup

config

or you can do the shorter version which

is copy run

start hit enter and it will save the

configuration

if there are changes made to the running

configuration

and it's not saved when there is a

reboot it the

changes aren't there if you issue a

reload

the reload will actually restart the

device

and the reload will actually load the

startup configuration

if you want to delete the startup

configuration again from our privileged

exact mode

you would type erase startup config and

that will

blank out the startup config

once you've erased the startup config

you need to reload or restart the router

the device

so that it will load a blank

configuration

because again when the device is turned

on it's

whatever configuration it has in memory

is known as the running config

so even if you erase the startup config

the device is still running the running

configuration

until you reload it

again there is a video which we're not

going to be covering

so again how do we uh

how do we actually save our output we

can actually if we're using putty

you can log all of the information

in the terminal session you can actually

go through and copy and paste it into a

text document

you can do session logging you can

disable logging

kind of just depends on what you want we

have packet tracer outlining how to do

the basic configuration and how to do

the saving

and how to configure a switch

moving on we're going to talk about how

to configure our in devices

with ports and ip addresses

so again ipaddresser outside the scope

of this video

so let's just assume we're given our ip

addresses and we can issue them

manually if we're talking with windows

10 would go to our network configuration

and we would use

the use the following addresses then

you'd manually type in the addresses

if we're talking ipv6 we again would be

given the ipv6 address

and the default gateway and our prefix

and we would use those pieces of

information

again ipv4 and ipv6 are discussed in a

later module

so here we're just talking our logical

addressing

for communication

moving on let's talk about ports and

interfaces

so how do we plug things in so

we have copper based switches and these

will use

ethernet cables the ethernet has an rj45

on the end

these are copper they're twisted copper

all the way through

if we have a fiber optic connection we

actually have fiber cable

and fiber has multiple different types

of media types

and plugins kind of just depends on what

type of device we have

and what plug that we actually have

connected to that device

next we have wireless we have a lot of

wireless devices

so one thing they all have in common is

if we're dealing with copper we have to

have some type of network interface card

with the appropriate interface a nic

nic if we have a fiber optic we have to

have a fiber optic

nick with again the appropriate

interface

if we have wireless we'll have a

wireless nic

that allows us to connect to that medium

using the choice of media

so to connect to a wireless network we

have to have a wireless card

to connect to a fiber network we have to

have a fiber card

if we have to connect to a copper based

network we have to have a

well fire an ethernet card

which i mean most network cards are

going to be rj45

which would be this copper connection

just because

that's the basic standard

so again the three types copper fiber

wireless

copper is going to be the most prevalent

and that's going to be

some type of ethernet cable with a rj45

if you're looking at like a phone cable

an rj45 looks very similar

to that but a phone cable is an rj11

it's slightly

smaller than a rj45 connection

so once we actually have a physical

connection let's say with copper

how do things communicate they actually

have to have a logical address assigned

hence the next section being configuring

the ip addresses

so again back to this screen so how do

we get to this screen

well first we're assuming we have to

manually configure the addresses

we are assuming no dynamic address

assignment

is available meaning there is no dhcp

server

running on the network so

how do we get to the screen if you're in

windows we'd go to control panel

networking sharing center would be

looking at some type of an adapter

setting

and we would be looking at the

properties of our network adapter from

there we'd be going to the ipv4 settings

and that is where we can manually set

our ip address

subnet default gateway and dns

if we actually do have dhcp

we would leave them as a pin

automatically

and that would be all we need to do

if we're talking ipv6 ipv6

actually has a

dynamic address association without dhcp

that's outside the scope of this video

for some reason we're going to talk

about giving a switch an ip address this

early in the course

so we can actually configure aip address

to a layer 2 switch

so for management capability so if we

go to our switch go to our global

configuration mode

and we go to interface vlan 1 that's a

virtual interface

and we can assign an ip address to that

switch

by typing ip address type in the address

of the switch that we want to give it

and the appropriate subnet mask that

should be the same

ip address network that that switch is

attached to

we actually have a lab doing basic

configuration

configuring the switches configuring the

pcs and setting up a switch virtual

interface

lastly once everything is set up we need

to

verify connectivity so how we do

that is by doing certain commands like

ping and trace route which

again is outside the scope of this video

which we'll be covering in our next

video

so now that we've covered basic device

configuration

and we've talked about how to configure

addresses and how

physical media connections and things of

that nature

we should have the ability to do some

basic

configuration so we're going to have a

lab where we configure

basic commands

or basic features of a switch and router

using basic cisco ios commands

we're going to set up topologies set up

our pcs

configure a very basic level switch

configuration

to reinforce kind of what we've learned

what did we learn in this module we

learned about the overall

structure of the cisco ios we learned

about

how to navigate the ios and we've

learned about

the device mediums that will allow us to

connect

our in devices to other networking

devices

again copper fiber optic or wireless and

we talked about basic ip addressing

and how to allocate them both statically

and dynamically

to in devices and that

is it for this lecture or this module

if you have any questions please reach

out thank you