Cisco router Setup

Below we will mention the basic steps, to know how to do the Cisco router setup:

Step 1: Default Cisco router setup on startup

When this is the first time, you do the boot up for your Cisco router, at the time of boot up, your Cisco router may have already done the some of the basic configurations. For example, these basic configurations include: LAN and WAN interfaces have been created, console and VTY ports are configured, and the inside interface for Network Address Translation has been assigned. Choose the command Cisco router setup‘show running-config’ to see this initial configuration. Here please note that if you are not able to view the initial configuration and you get a ‘No Password Set error’ message, you must reset the initial password.

Step 2: Things needed for Cisco router setup

Before you do the Cisco router setup, you need below -mentioned information which depends upon the kind of Network you are setting up:

i) If you are doing the Cisco router setup for the internet connection. you must have below-mentioned information:

* Login name which is PPP(Point-to-Point Protocol-client name)

– Check the PPP authentication type, what type is it of: Challenge Handshake Authentication Protocol (CHAP) or Password Authentication Protocol (PAP)

– You must have the PPP password to access your Internet service provider (ISP) account

– To do Cisco router setup, you must know the DNS server IP address and default gateways

– As per your need if you are setting up your Cisco router for corporate network you and the network administrator must generate and share the following information for the WAN interfaces of the routers: Type of authentication either it is of CHAP or PAP, your PPP client name access the router, The PPP password to access the router

* If you are doing Cisco router setup for IP routing:

– Deciding the addressing scheme for your IP network.

– Decide your IP router parameter information, which should include IP address, PVCs which stands for ATM permanent virtual circuits (These PVC parameters are typically virtual path identifier (VPI), virtual circuit identifier (VCI), and traffic shaping parameters)

– Also decode the number of PVCs that your service provider has given you, along with their VPIs and VCIs.

– For every of PVC decide the type of AAL5 encapsulation supported. That can any one of the following: AAL5SNAP—This can be either routed RFC 1483 or bridged RFC 1483. For routed RFC 1483, the service provider must provide you with a static IP address. For bridged RFC 1483, you may use DHCP to obtain your IP address, or you may obtain a static IP address from your service provider. AAL5MUX PPP—With this type of encapsulation, you need to determine the PPP-related configuration items.

* Also if you had planned to connect over an ADSL or G.SHDSL line:

– From your public telephone service provider, order the right line which could any of it: For ADSL lines—Ensure that the ADSL signaling type is DMT (also called ANSI T1.413) or DMT Issue 2. For G.SHDSL lines—Verify that the G.SHDSL line conforms to the ITU G.991.2 standard and supports Annex A (North America) or Annex B (Europe).

After collection of this all information, based on your selection criteria, you are ready to do Cisco router setup, Starting from the tasks in the “Configuring Basic Parameters” section.

Step 2- To do the Cisco router setup, perform below-mentioned tasks as per your selection criteria:

Configure Global Parameters

Configure Fast Ethernet LAN Interfaces

Configure WAN Interfaces

Configuring a Loopback Interface

Configuring Command-Line Access to the Router

Explaining Configure Global Parameters

Step 1: configure terminal ,Example: Router> enable, Router# configure terminal, Router(config)#

when you use the console port, make sure to enter the global configuration mode. In case you use the remote terminal, use it:

telnet router name or address

Login: login id

Password: *********

Router> enable

Step 2: hostname name: Example: Router(config)# hostname Router, Router(config)#

Here mention the name for your Cisco router

Step 3: enable secret password: Example: Router(config)# enable secret cr1ny5ho,Router(config)#

Mention your secret password which should be an encrypted one, which will prevent the unauthorized access to your Cisco router

Step 4: no ip domain-lookup, Example: Router(config)# no ip domain-lookup Router(config)#

Disable the Cisco router from translating unfamiliar words (typos) into IP addresses.

Now Setup the Fast Ethernet LAN Interfaces

The Fast Ethernet LAN Interfaces on Cisco router are setup as part of the default VLAN and as such by default, these addresses are not setup individually. Access can be done by the VLAN. You may assign the interfaces to other VLANs if desired. For more information about creating VLANs, see Chapter5, “Configuring a LAN with DHCP and VLANs”n

Based on your Cisco router model: Cisco 1811,Cisco 1812,Cisco 1801, Cisco 1802, and Cisco 1803 routers each have one ATM interface for WAN connection

setup the Configure the Fast Ethernet WAN Interface

Step 1: interface type number, Example: Router(config)# interface fastethernet 0

Router(config-int)#

Setup the setup mode for a Fast Ethernet WAN interface on the router.

Note Fast Ethernet WAN ports are numbered 0–1 on the Cisco 1800 series routers.

Step 2: ip address ip-address mask, Example: Router(config-int)# ip address 192.1.12.2 255.255.255.0, Router(config-int)#

Decide the the IP address and subnet mask for the specified Fast Ethernet interface

Step 3: no shutdown, Example: Router(config-int)# no shutdown , Router(config-int)#

Enables the Ethernet interface, changing its state from administratively down to administratively up

Step 4: Exit, Example: Router(config-int)# exit, Router(config)#

Exits interface configuration mode and returns to global configuration mode.

Setup the ATM WAN Interface

Step 1: controller dsl 0 mode atm exit, Example: Router(config)# controller dsl 0 Router(config-controller)# mode atm, Router(config-controller)# exit, Router(config)#

The Router using the G.SHDSL signaling, perform these commands. If you are using the ADSL signaling routers, then ignore these steps.

Step 2: interface type number, Example: Router(config)# interface atm0, Router(config-int)#

Enters interface configuration mode.

Step 3: ip address ip-address mask, Example: Router(config-int)# ip address 200.200.100.1 255.255.255.0, Router(config-int)#

Now select the IP address and subnet mask for the ATM interface.

Step 4: no shutdown, Example: Router(config-int)# no shutdown, Router(config-int)#

Enables the ATM 0 interface.

Step 5: exit,Example: Router(config-int)# exit, Router(config)#

Now exit the interface configuration mode and returns to global configuration mode.

Setup the Configure the ATM WAN Interface

Now setup the ATM WAN Interface. The wireless interface enables connection to the router through a wireless LAN connection.

Setup the Lookback interface

Step 1: interface type number, Example: Router(config)# interface Loopback 0,

Router(config-int)#

enter the interface configuration mode.

Step 2: ip address ip-address mask, Example: Router(config-int)# ip address 10.108.1.1 255.255.255.0, Router(config-int)#

This command Sets the IP address and subnet mask for the loopback interface.

Step 3: exit, Example: Router(config-int)# exit Router(config)#

This command Exits configuration mode for the loopback interface and returns to global configuration mode.

Setup the Command-Line Access to the Router

Step 1: line [ aux | console | tty | vty ] line-number, Example: Router(config)# line console 0

Router(config)#

This command enter the line configuration mode and specifies the type of line. This example specifies a console terminal for access.

Step 2 : password password, Example: Router(config)# password 5dr4Hepw3

Router(config)#

This command Specifies a unique password for the console terminal line.

Step 3: login Example: Router(config)# login Router(config)#

This command Enables password checking at terminal session login.

Step 4: exec-timeout minutes [ seconds ] Example: Router(config)# exec-timeout 5 30 Router(config)#

This command Sets the interval that the EXEC command interpreter waits until user input is detected. The default is 10 minutes. Optionally, add seconds to the interval value. This example shows a timeout of 5 minutes and 30 seconds. Entering a timeout of 0 0 specifies never to time out.

Step 5: line [ aux | console | tty | vty ] line-number Example: Router(config)# line vty 0 4

Router(config)#

This command Specifies a virtual terminal for remote console access.

Step 6: password password Example: Router(config)# password aldf2ad1 Router(config)#

This command specifies a unique password for the virtual line

Step 7: login Example: Router(config)# login Router(config)#

This command Enables password checking at the virtual terminal session login.

Step 8: end Example: Router(config)# end Router#

This command Exits line configuration mode and returns to privileged EXEC mode.

How to Display command-line Interface

As we have mentioned different types of commands and their purpose to do the Cisco router setup, here below we are mentioning that how to display these sort of command lines:

Step 1: Power on your terminal and router and connect both with the console cable. Take the help of the Cisco 800 Series Router Hardware Installation Guide or the Cisco 800 Series Router Quick Start Guide for instructions.

Step 2: Now start the setup session. Open a configuration window by using a terminal emulation software, such as HyperTerminal, and logging in to the router. The terminal port settings are as follows:

•9600 bits per second

•8 data bits, no parity

•1 stop bit

•Flow control is none

A window with a message appears. For example, Router>. Note that Router is the name of the router and that it can be changed. Your router might have a different name if it was previously configured. The “greater than” sign (>) indicates that you have entered exec mode. In this mode, some show commands are available. For example, the show interface command displays the IP address of an interface.

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