Introduction: Configure Password for Devices in Cisco Packet Tracer
Lists a single line of information about each interface, including the IP address, line and protocol status, and the method with which the address was configured (manual or DHCP). Ipconfig /all Enables the MAC address information to be displayed from the command prompt, shows address if DNS server.
- The tracert command is a Command Prompt command that's used to show several details about the path that a packet takes from the computer or device you're on to whatever destination you specify. You might also sometimes see the tracert command referred to as the trace route command or traceroute command.
- Lists a single line of information about each interface, including the IP address, line and protocol status, and the method with which the address was configured (manual or DHCP). Ipconfig /all Enables the MAC address information to be displayed from the command prompt, shows address if DNS server.
- There's an easy way to fix that - line the line section of the config, enter the command 'logging synchronous' i.e. This will force notifications to appear on a new line and not mess up your terminal. Cisco Packet Tracer vs Emulators.
In this instructable you will learn how to set a password to layer 2 and layer 3 devices so that only the user can access them.
En este instructable se aprenderá a poder colocar una contraseña a los dispositivos de capa 2 y capa 3 para que solamente el usuario pueda acceder a ellos.
Step 1: Privileged Mode
Shortkeys keygen. In this step we will configure the user mode in a privileged mode. To do this we select our router and enter the CLI configuration by placing the following command:
Router>enable
En este paso configuraremos de modo usuario a modo privilegiado. Para ello seleccionaremos nuestro router y entramos a la configuración CLI colocando el siguiente comando:
Router>enable
Step 2: Global Configuration Mode
Now we configure from privileged mode to global mode, the commands to use are:
Router#configure terminal
Ahora configuramos del modo privilegiado al modo global, los comandos a utilizar son:
Router#configure terminal
Router#configure terminal
Step 3: Set the Password
To configure the password it is essential to do so in global configuration mode, the commands that will be used are:
Router(config)#line vty 0 4
Router(config-line)#password instructables
Router(config-line)#login
Para configurar la contraseña es indispensable hacerlo en el modo de configuración global, los comandos que se utilizarán son:
Router(config)#line vty 0 4
Router(config-line)#password instructables
Router(config-line)#login
Step 4: Enable the Password
Now that the password has been set, it is essential to be able to enable it in the global configuration, the commands to use are:
Router(config-line)#exit
Router(config)#enable secret instructables
Ahora que ya se configuro la contraseña es indispensable poderla habilitar en la configuración global, los comandos a utilizar son:
Router(config-line)#exit
Router(config)#enable secret instructables
Step 5: Test Password
To do this we will try to enter each configuration mode, see that if we do not have the password we will not be able to access the global configuration mode and the privileged mode.
Para ello intentaremos ingresar a cada modo de configuración, veremos que si no tenemos la contraseña no podremos acceder al modo usuario y al modo privilegiado.
Step 6: Remote Console Cable Access
Now we will try to access the router via a laptop using a console cable and serial communication.
Ahora intentaremos ingresar por medio de una laptop al router usando un cable de consola y comunicación serial.
Step 7: Telnet Remote Access
As a last test we will give an IP address to a laptop and a physical interface of the router, we will try to log in from the laptop via telnet to the router. Now we will notice that at this time you will ask us for the password twice, once to enter the user mode and again to enter the privileged user.
The network address 192.168.255.0 /30 will be used for this purpose.
Como última prueba le daremos una dirección IP a una laptop y a una interfaz física del router, nosotros trataremos de ingresar desde la laptop por telnet hacia el router. Ahora notaremos que en este momento nos solicitara dos veces la contraseña, una vez para ingresar al modo usuario y otra vez para ingresar al usuario privilegiado.
Para ello se utilizará la dirección de red 192.168.255.0 /30
Step 8: Configure and Enable Password on a Switch
For demonstration purposes only, we will also configure the security password for the switch of our topology with the same commands we use for the router described in steps 3 and 4. Plus the safety test from step 6.
Solo como fines demostrativos, también configuraremos la contraseña de seguridad para el switch de nuestra topología con los mismos comandos que usamos para el router descritos en los pasos 3 y 4. Además de la prueba de seguridad del paso 6.
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9.2.3.3 Packet Tracer – Using the Ping Command Answers
Packet Tracer – Using the Ping Command (Answers Version)
Answers Note: Red font color or gray highlights indicate text that appears in the Answers copy only.
Topology
Objectives
Use the ping command to identify an incorrect configuration on a PC.
Background / Scenario
A small business owner learns that some users are unable to access a website. All PCs are configured with static IP addressing. Use the ping command to identify the issue.
Step 1: Verify connectivity.
Access the Desktop tab > Web Browser of each PC and enter the URL www.cisco.pka. Identify any PCs that are not connecting to the web server.
![Packet Packet](/uploads/1/1/8/1/118138791/300553527.png)
https://protectiondatnow.weebly.com/ubuntu-one-for-mac-os-x-download.html. Note: All of the devices require time to complete the boot process. Please allow up to one minute before receiving a web response.
Which PCs are unable to connect to the web server?_____________ PC2
Step 2: Ping the web server from PC2.
- On PC2, access the Command Prompt from the Desktop tab.
- Type ping www.cisco.pka.
Did the ping return a reply? What is the IP address displayed in the reply, if any?____________________________________________________________________________________
There was no reply. No IP address was displayed in the message.
Step 3: Ping the web server from PC1.
- On PC1, access the Command Prompt from the Desktop tab.
- Type ping www.cisco.pka.
- Did the ping return a reply? What is the IP address returned, if any?____________________________________________________________________________________
Reply was returned with 192.15.2.10 as the IP address for www.cisco.pka.
Step 4: Ping the IP address of the web server from PC2.
- On PC2, access the Command Prompt from the Desktop tab.
- Attempt to reach the IP address of the web server with the command ping 192.15.2.10.
- Did the ping return a reply? If so, then PC2 is able to reach the web server via IP address, but not domain name. This could indicate a problem with the DNS server configuration on PC2.
Step 5: Compare the DNS server information on PC2 with other PCs on the local network.
- Access the Command Prompt of PC1.
- Using the command ipconfig /all, examine the DNS server configuration on PC1.
- Access the Command Prompt of PC2.
- Using the command ipconfig /all, examine the DNS server configuration on PC2. Do the two configurations match?
Step 6: Make any necessary configuration changes on PC2.
- Navigate to the Desktop tab of PC2, make any necessary configuration changes in IP Configuration.
- Using the Web Browser within the Desktop tab, connect to www.cisco.pka to verify that the configuration changes resolved the problem.
- Click the Check Results button at the bottom of this instruction window to check your work.