04- Module Operating & Configuring IOS.ppt

Objectives
On completion of this chapter , you will be able
to perform the following tasks:
Start up the Catalyst switch and Cisco
router and observe the boot up processes
Provide an initial configuration for the switch and
perform the router ‘ s initial setup configuration
Enable and identify the commands modes in each network device
Use the various help and command line-editing features
of each device’s user interface
Show and recognize fundamental technical details about each
network device

Cisco Internetwork Operating
System (IOS) Software
Cisco IOS Software delivers network services
and enable networked applications.

Network Device Configuration
Configuration Sets the device with:
--Network policy of the functions required
--Protocol addressing and parameter settings
--Options for administration and management
Catalyst Switch memory has initial
configuration with default settings
Cisco router will prompt for initial
configuration if
there is no configuration in memory

An Overview of Cisco
Device Startup
Find and check device hardware
Find and local Cisco IOS software image
Find and apply device configurations

ICRC_revision_11.3
External Configuration Sources
Virtual
Terminals
VTY 0 4
TFTP Server
Management
 Configuration information can come
from many sources
Console Port
Auxiliary Port
Interfaces
Network
Station
Configurations will act in
device memory

Cisco IOS User interface Fundamentals
Uses a command line interface.
Operations vary on different
internetworking devices.
Type or paste entire in the console
command modes.
Enter Key instructs device to parse
and execute the command.
Two primary EXEC modes are user
mode and privileged mode.
Command modes have distinctive prompts.

Cisco IOS Software EXEC
There are two main EXEC modes for entering
commands.
First mode:
User Mode
•Limited examination of switch or router
•Command prompt is hostname >

The Cisco IOS
Software EXEC (cont.)
Second mode (and most commonly used):
Privileged (or enabled )Mode
Detailed examination of switch or router
Enable configuration and debugging
Prerequisite for other configuration modes
Command prompt on the device
hostname #

Initial Start Up Of The
Catalyst witch
•System startup routines initiate switch software
•Initial startup uses default configuration parameters
1. Before you start the switch ,
verify the cabling and console connection
2. Attach the power cable plug to
the switch power supply socket
3. Observe the boot sequence
__ LEDs on the switch chassis
__ Cisco IOS software output text

Initial Bootup Output
from the Switch
Catalyst 1900 Management Console
Copyright © Cisco Systems ,Inc. 1993_1998
All rights reserved.
Enterprise Edition Software
Ethernet Address : 00-50-BD-73-E2-c0
PCA Number : 73-3121-01
PCA Serial Number : FAA0252A0QX
Model Number: WS-C1924-EN
System Serial Number : FAA0304s003
Power Supply S/N : PHI025101F3
-----------------------------------------------------------------
1 User (s) now active on Management Console.
User Interface Menu
[ H ] Menus
[ K ] Command Line
[ I ] IP Configuration
Enter Selection :
Console
connection

Console
>
> enable
Enter Password :
#
# disable
> quit
User mode prompt
Privileged mode prompt
Logging into the Switch and
Entering the Enable Password

Switch Command Line Help
Facilities
Context_Sensitive Help
Provides a list of commands
and the arguments associated
with a specific command.
Console Error Messages
Identify problems with Switch
commands incorrectly entered so that
you can alter or correct them.
Command History Buffer
Allows recall of long or complex
commands or entries for reentry,review or
correction.

Showing Switch Initial Startup
Status
Switch # show version
Switch # show running _ config
Switch # show interface
Display operational status of switch components

Switch Show Version Command
Wg_sw_c# show version
Cisco Catalyst 1900/2820 Enterprise Edition Software
Version VB.01.01 Written from 171.068.229.225
Copyright © Cisco Systems , Inc. 1993-1998
wg_ws_c uptime is 15 day(s) 21 hour (s) 53 minute(s) 11 second(s)
Cisco Catalyst 1900 (486sx1) processor with 2048k/1024 k bytes of memory
Hardware board revision is 5
upgrade status No upgrade currently in progress.
Config file status: No configuration upload/download is in progress
27 fixed Ethernet /IEEE 802.3 interface (s)
Base Ethernet Address : 00-50-BD-73-E2-C0

Switch Show running_configuration
command
Catalyst 1924
Wg-ws-c# Show runn
Building configuration …
Current Configuration :
!
Host name “wg_ws_c”
!
ip address 10.1.1.33 255.255
ip default_gateway 10.3.3.3
!
Interface Ethernet 0/1
<text omitted>
interface ethernet 0/24
!
Inters=face ethernet 0/25
!
Interface ethernet 0/26
!
Catalyst 1912
Wg-ws-c# Show runn
Building configuration …
Current Configuration :
!
Host name “wg_ws_c”
!
ip address 10.1.1.33 255.255.255.0
ip default_gateway 10.3.3.3
!
Interface Ethernet 0/1
<text omitted>
interface ethernet 0/12
!
Inters=face ethernet 0/25
!
!

Switch Show interfaces Command
Wg_ws_c# show interface ethernet 0/1
Ethernet 0/1 Enabled
Hardware is built _in 10 Base _T
Address is 0050.BD73.E2C1
MTU 1500 bytes , BW 10000 Kbits
802.1d STP state : Forwarding Forward Transition : 1
Port monitoring : Disabled
Unknown unicast flooding : Enabled
Description :
Duplex setting : Half duplex
Back pressure : Disabled
-----More---

Showing the switch IPAddress
Wg_ws_a # show ip
Ip address : 10.5.5.11
Subnet mask : 255.255.255.0
Default gateway: 10.5.5.3
Management VLAN : 1
Domain name :
Name Server 1: 0.0.0.0
Name Server 2: 0.0.0.0
HTTP Server : Enabled
HTTP Port : 80
RIP : Enabled
wg_ws_a#

Configuring the Switch
Configuration Modes :
•Global Configuration Mode
_ wg_sw_a# conf term
_ wg_ws_a (config)#
•Interface Configuration Mode
_ wg_ws_a (config )# interface e0/1
_wg_ws_a(config_if) #

Configuring the Switch IP
Address
Wg_ws_a(config)# ip address { ip address } { mask }
Wg_ws_a(config )# ip address 10.5.5.11 255.255.255.0

Configuring Switch identification
Switch Name
(Config )# hostname wg_ws_c
wg_ws_c(config)#
Sets local identity for the Switch

Initial Start Up of the Cisco Router
•System Startup routines initiate router software
•Router falls back to startup alternatives if needed
1. Before you start the router , verify the
power ,cabling and console connection
2. Push the power switch to on
3. Observe the boot sequence
Cisco IOS software output text
on the console

27
Console
---- system configuration dialog -----
continue with configuration dialog ? [ yes/no] : yes
at any point you may enter a question mark ‘ ?‘ for help.
Use ctrl_c to abort configuration dialog at any prompt
default setting are in square bra
Wg_ ro_ c con0 is now available
press return to get started.
Wg_ ro_c> User - mode
prompt
Setup mode
Bootup Output from the Router
Unconfigured versus configured router

Setup : The initial configuration
Dialog
Router # setup
----- system configuration dialog -----
continue with configuration dialog ? [ yes/no] : y
at any point you may enter a question mark ‘?’ for help .
Basic management setup configures only enough connectivity
for management of the system , extended setup will ask you
to configure each interface on the systems
Would you like to enter basic management setup ? [ yes/no ] : n

Setup Global Parameters
Configuration global parameters:
Enter host name [router ] : wg_ro_c
The enable secret is a password used to protect access to
privileged EXEC and configuration modes. This password after
entered , because encrypted in the configuration .
Enter enable secret : cisco
The enable password is used when you do not specify an enable secret password , with
some older software versions , and some boot images.
Enter enable password : sanfran
the virtual terminal password is used to protect access to the
router over a network interface.
Enter virtual terminal password : san jose
Configure SNMP network Management ? [no] :
Initial global parameters

Setup Global Parameters (cont.)
Configure LAT ? [yes ] : n
configure AppleTalk? [no] :
configure DECnet ? [no ] :
configure IP ? [yes] :
configure IGRP routing ? [ yes] :n
configure RIP routing ? [no] :
configure CLNS ? [ no ] :
configure IPX ? [ no ] :
configure Vines ? [no] :
configure XNS ? [ no ] :
configure Apollo ? [ no ] :
Initial Protocol configurations

Setup Interface Parameters
BRI interfaces needs isdn switch _type to be configured
valid switch types are :
[ 0 ] none ……………. Only if you don,t want to configure BRI
[ 1 ] basic _ltr ………... ltr 6 switch type for Germany
[ 2 ] basic_5ess………...ATRT 5ESS switch type for the us / Canada.
[ 3 ] basic_ dms 100 …. Northern DMS_100 switch type for us/ Canada
[ 4 ] basic_ net 3 ………NET 3 switch type for UK and Europe
[ 5 ] basic_ ni …………National ISDN switch type
[ 6 ] basic ts 013……… TS013 switch type for Australia
[ 7 ] ntt ………………... NTT switch type for Japan
[ 8 ] vn3 …………….. Vn3 and vn4 switch types for France
Choose ISDN BRI switch type [ 2 ] :
Configuring interface parameters :
Do you want to configure BRI0 ( BRI d_channel ) interface ? [ no ] :
Do you want to configure Ethernet 0 interface ? [no ] :y
Configure ip on this interface [ no ] :y
IP address for this interface : 10.1.1.33
Subnet mask for this interface [255.0.0.0 ] : 255.255.255.0
Class A network is 10.0.0.0 , 24 subnet bits ; mask is /24
Do you want to configure serial 0 interface ? [ no ] :

Setup Script Review and Use
The following configuration command script was created:
Hostname Rout
enable secret
enable password
line vty 0 4
password sanjose
no snmp_server:
!
No appletalk
no decnet rou
ip routing
no clns routing
no ipx routing
no vines rout
no xns routing
no apollo rout
isdn switch _ty
Interface BRI0
shutdown
no ip address
!
Interface Ethernet 0
no shutdown
ip address 10.1.1.31 255.255.255.0
no map enabled
!
Interface serial 0
shutdown
no ip address
<text omitted>
end
[0] Go to the IOS command prompt without saving this config.
[1] Return back to the setup without saving this config.
[2] Save this configuration to nvram and exit.
Enter your selection [2] :

Console
Wg_ro_c con0 is now available
press RETURN to get started.
Wg_ro_c >
wg_ro_c> enable
wg_ro_c#
wg_ro_c# disable
wg_ro_c>
wg_ro_c > logout
User mode prompt
Privileged mode prompt
Logging into the Router

Router>?
Exec commands:
access-enable Create a temporary Access-List entry
atmsig Execute Atm Signalling Commands
cd Change current device
clear Reset functions
connect Open a terminal connection
dir List files on given device
disable Turn off privileged commands
disconnect Disconnect an existing network connection
enable Turn on privileged commands
exit Exit from the EXEC
help Description of the interactive help system
lat Open a lat connection
lock Lock the terminal
login Log in as a particular user
logout Exit from the EXEC
mrinfo Request neighbor and version information from a
multicast router
-- More --
User Mode Command List

Router#?
Exec commands:
access-enable Create a temporary Access-List entry
access-template Create a temporary Access-List entry
bfe For manual emergency modes setting
clear Reset functions
clock Manage the system clock
configure Enter configuration mode
connect Open a terminal connection
copy Copy configuration or image data
debug Debugging functions (see also 'undebug')
disable Turn off privileged commands
disconnect Disconnect an existing network connection
enable Turn on privileged commands
erase Erase flash or configuration memory
exit Exit from the EXEC
help Description of the interactive help system
lat Open a lat connection
lock Lock the terminal
login Log in as a particular user
logout Exit from the EXEC
mbranch Trace multicast route down tree branch
--More--
Privileged Mode Command List

Context_Sensitive Help
Provides a list of
commands and the
arguments associated
with a specific command.
Console Error Messages
Identify problems with
router command in correctly
entered so that you can alter
or correct them.
Command History Buffer
Allows recall of long or
complex commands or
entries for reentry ,
review,or correction.
Router Command Line
Help Facilities

Using Passwords
Console
User Access Verification
Password:
% Password timeout expired
Password:
Password:
% Bad Passwords

Router#clok
Translating "clo"...domain server (255.255.255.255)
% Unknown command or computer name, or unable to find computer address
Context-Sensitive Help

Router#clok
Router#cl?
clear clock

Router#clok
Router#cl?
clear clock
Router#clock
% Incomplete command.

Router#clok
Router#cl?
clear clock
Router#clock
Router#clock ?
set Set the time and date

Router#clok
Router#cl?
clear clock
Router#clock
Router#clock ?
Router#clock set

Router#clok
Router#cl?
clear clock
Router#clock
Router#clock ?
Router#clock set
Router#clock set ?
Current Time (hh:mm:ss)

Router#clok
Router#cl?
clear clock
Router#clock
Router#clock ?
Router#clock set
Router#clock set ?
Router#clock set 19:56:00
Router#clock set 19:56:00 ?
<1-31> Day of the month
MONTH Month of the year
Router#clock set 19:56:00 04 8
. ^
% Invalid input detected at the '^' marker
Router#clock set 19:56:00 04 August
Router#clock set 19:56:00 04 August ?
<1993-2035> Year

Router#clok
Router#cl?
clear clock
Router#clock
Router#clock ?
Router#clock set
Router#clock set ?
Router#clock set 19:56:00
Router#clock set 19:56:00 ?
<1-31> Day of the month
MONTH Month of the year
Router#clock set 19:56:00 04 8
. ^
% Invalid input detected at the '^' marker
Router#clock set 19:56:00 04 August
Router#clock set 19:56:00 04 August ?
<1993-2035> Year
• Symbolic translation
• Keyword completion
• Last command recall <Ctrl><P>
• Command prompting
• Syntax checking

Router>$ value for customers, employees, and partners.
Automatic scrolling of long lines.
<Ctrl><A> Move to the beginning of the command line.
<Ctrl><E> Move to the end of the command line.
<Esc><B> Move to the beginning of the previous word.
<Ctrl><F> Move forward one character.
<Ctrl><B> Move back one character.
<Esc><F> Move forward one word.
Using Enhanced Editing Commands

<Ctrl><P> or Up arrow Last (previous) command recall
<Ctrl><N > or Down arrow More recent command recall
<Tab> Entry completion
Reviewing Command History
Router#show history
show history
enable
terminal history size 10
terminal no editing
terminal editing
show history
Router#

Router#show version
IOS (tm) 2500 Software (C2500-JS-L), Version 11.2 (6), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-1997 by cisco Systems, Inc.
Compiled Tue 06-May-97 16:17 by kuong
Image text-base: 0x0303ED8C, data-base: 0x00001000
ROM: System Bootstrap, Version 5.2(8a), RELEASE SOFTWARE
ROM: 2500-XBOOT Bootstrap Software, Version 10.1(1), RELEASE SOFTWARE (fc1)
router uptime is 1 week, 3 days, 32 minutes
System restarted by reload
System image file is "c2500-js-l", booted via tftp from 171.69.1.129
--More--
show version Command

Viewing the Configuration
Config
IOS
RAM
Config
NVRAM
Console
Setup utility
Show
running-config startup-config
Show
• Setup saves the configuration to NVRAM

Router#show startup-config
Using 1108 out of 130048 bytes
!
version 11.2
!
hostname router
-- More --
show startup-config Command
and show running-config Command
• Use write terminal with Release
10.2 and earlier
• Use show config with Release
10.2 and earlier
Router#show running-config
Building configuration...
Current configuration:
!
version 11.2
!
-- More --
In NVRAM In RAM

ICRC_revision_11.3
Router Modes
Copyright © 1998, Cisco Systems, Inc.

Router(config)#
Router>
Router#
Overview of Router Modes
• User EXEC mode
• Privileged EXEC mode
• Global configuration mode

Router(config)#
Router>
Router#
Other
configuration
modes
Exit
Ctrl-Z (end)
• User EXEC mode

Router(config)#
Router>
Router#
Other
configuration
modes
Exit
Ctrl-Z (end)
• User EXEC mode
Configuration
Mode Prompt
Interface Router(config-if)#
Subinterface Router(config-subif)#
Controller Router(config-controller)#
Line Router(config-line)#
Router Router(config-router)#
IPX-router Router(config-ipx-router)#
Route-map Router(config-route-map)#

Configuring Router Identification
• Sets local identity or message for the accessed router or interface
Router Name
Router(config)#hostname P1R1
P1R1#

Router Name
P1R1#
Message of the Day Banner
P1R1(config)#banner motd #
Accounting Department
You have entered a secured
system. Authorized access
only! #

Router Name
P1R1#
Message of the Day Banner
P1R1(config)#banner motd #
Accounting Department
You have entered a secured
system. Authorized access
only! #
Interface Description
P1R1(config)#interface ethernet 0
P1R1(config-if)#description Engineering LAN, Bldg. 18

Password Configuration
Router(config)#line console 0
Router(config-line)#login
Router(config-line)#password cisco
Console Password

Console Password
Virtual Terminal Password
Router(config)#line vty 0 4
Router(config-line)#password sanjose

Console Password
Enable Password
Router(config)#enable-password sanfran

Console Password
Enable Password
Router(config)#enable password cisco
Secret Password
Router(config)#enable secret sanfran

Router(config)#interface type number
Router(config-if)#
Configuring an Interface
• type includes serial, ethernet, token ring, fddi, hssi, loopback,
dialer, null, async, atm, bri, and tunnel
• number is used to identify individual interfaces

Router(config-if)#
Router(config)#interface type slot/port
Router(config-if)#
• For the Cisco 7000 and 7200 series routers

Router(config-if)#
Router(config-if)#exit
Quit from current interface configuration mode
Router(config)#interface type slot/port
Router(config-if)#
• For the Cisco 7000 and 7200 series routers

Configuring a Serial Line
• Enter global configuration mode
Router#configure term
Router(config)#

Router(config)#interface serial 1
Router(config-if)#
Router(config)#
• Specify interface

Router(config-if)#clock rate 56000
Router(config-if)#
Router(config-if)#
Router(config)#
• Set DCE clock rate
(optional)

Router(config-if)#clock rate 56000
Router(config-if)#
Router(config-if)#
Router(config)#
Router(config-if)#bandwidth 56
Router(config-if)#exit
Router(config)#exit
Router#
• Set DCE clock rate
(optional)
• Set bandwidth (optional)

Determining DCE/DTE Status
Router#show controllers serial 1
HD unit 1, idb = 0xBFD3C, driver structure at 0xC39A0
buffer size 1524 HD unit 1, V.35 DCE cable, clockrate 56000
cpb = 0x83, eda = 0x800, cda = 0x814
RX ring with 16 entries at 0x830800
00 bd_ptr=0x0800 pak=0x0C54F0 ds=0x836938 status=80 pak_size=22
01 bd_ptr=0x0814 pak=0x0C5158 ds=0x835BC8 status=80 pak_size=22
02 bd_ptr=0x0828 pak=0x0C4F8C ds=0x835510 status=80 pak_size=269
03 bd_ptr=0x083C pak=0x0C4DC0 ds=0x834E58 status=80 pak_size=22
04 bd_ptr=0x0850 pak=0x0C6184 ds=0x839840 status=80 pak_size=22
05 bd_ptr=0x0864 pak=0x0C4BF4 ds=0x8347A0 status=80 pak_size=22
.
.
.

Verifying Your Changes
Router#show interfaces serial 1
Serial1 is up, line protocol is up
Hardware is MK5025
MTU 1500 bytes, BW 56 Kbit, DLY 20000 usec, rely 255/255, load 9/255
Encapsulation HDLC, loopback not set, keepalive set (10 sec)
Last input 0:00:00, output 0:00:01, output hang never
Last clearing of "show interface" counters never
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
Five minute input rate 1000 bits/sec, 0 packets/sec
Five minute output rate 2000 bits/sec, 0 packets/sec
331885 packets input, 62400237 bytes, 0 no buffer
Received 230457 broadcasts, 0 runts, 0 giants
3 input errors, 3 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
403591 packets output, 66717279 bytes, 0 underruns
0 output errors, 0 collisions, 8 interface resets, 0 restarts
45 carrier transitions

Other Interface Configuration
Examples
• Specify the ring speed for Token
Ring
Router(config)#interface tokenring 2/0
Router(config-if)#early-token release
Router(config-if)#ring-speed 16

Other Interface Configuration
Examples
• Specify the ring speed for Token
Ring
Router(config)#interface tokenring 2/0
Router(config-if)#early-token release
Router(config-if)#ring-speed 16
Router(config)#interface ethernet 2
Router(config-if)#media-type 10baseT
• Select the media-type
connector for the Ethernet
interface

Router(config-if)#shutdown
%LINEPROTO-5-UPDOWN: Line Protocol on Interface Serial1, changed state to down
%LINK-5-CHANGED: Interface Serial, changed state to administratively down
Shutting Down an Interface
• Use this command to administratively turn off an interface without
altering its other configuration entries

• Use this command to administratively turn on an interface that has been
shut down
Router(config-if)#shutdown
%LINEPROTO-5-UPDOWN: Line Protocol on Interface Serial1, changed state to down
%LINK-5-CHANGED: Interface Serial, changed state to administratively down
Shutting Down an Interface
• Use this command to administratively turn off an interface without
altering its other configuration entries
Router(config-if)#no shutdown
%LINK-3-UPTOWN: Interface Serial, changed state to up
%LINEPROTO-5-UPDOWN: Line Protocol on Interface Serial1, changed state to up

04- Module Operating & Configuring IOS.ppt

04- Module Operating & Configuring IOS.ppt

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04- Module Operating & Configuring IOS.ppt