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8/9/2019 Mod_7 Basic Router Configuration
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1 2004, Cisco Systems, Inc. All rights reserved.
Basic Cisco RouterTechnology
Presented by: Team ASPRAK JARKOMPOLITEKNIK TELKOM
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Internal Configuration Components
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Router Internal Components
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Internal Components of a 2600 Router
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Router External Connections
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External Connections on a 2600 Router
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Computer or Terminal ConsoleConnection
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Modem Connection to Console orAuxiliary Port
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Establish a Console Session
All Cisco routersinclude an EIA/TIA-232asynchronous serialconsole port. Theconsole port is an RJ-45.
Use an RJ-45 to RJ45rollover cable with a
female RJ-45 to DB-9adapter to connect aPC to the console port
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Configurations can comefrom many sources.
Configurations will act indevice memory.
External Configuration Sources
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Steps in Router Initialization
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Cisco Device Startup
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Setup Mode
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Router LED Indicators
Cisco routers use LED indicators to providestatus information. LED indicators will vary fordifferent Cisco router models.
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Router Modes
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A CLI is used to entercommands.
Operations vary on differentinternetworking devices.
Users type or paste entries in theconsole command modes.
Enter key instructs device toparse and execute the command.
Two primary EXEC modes areuser mode and privileged mode.
Command modes havedistinctive prompts.
Cisco IOS User Interface Functions
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There are two main EXEC modes forentering commands.
Cisco IOS Software EXEC Mode
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Cisco IOS Software EXEC Mode (Cont.)
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User Mode Commands
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Privileged Mode Commands
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The User Interface Error Indicator
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Configuring a Router
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System startup routines initiate router software
Router falls back to startup alternatives if needed
Initial Startup of the Cisco Router
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Unconfigured Versus Configured Router
Bootup Output from the Router
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Router#setup
--- 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 settings are in square brackets '[]'.
Basic management setup configures only enough connectivityfor management of the system, extended setup will ask youto configure each interface on the system
Would you like to enter basic management setup? [yes/no]: no
Setup: The InitialConfiguration Dialog
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Setup InitialGlobal Parameters
Configuring global parameters:
Enter host name [Router]:wg_ro_c
The enable secret is a password used to protect access toprivileged EXEC and configuration modes. This password, after
entered, becomes encrypted in the configuration.Enter enable secret: cisco
The enable password is used when you do not specify anenable secret password, with some older software versions, andsome boot images.Enter enable password: sanfran
The virtual terminal password is used to protectaccess to the router over a network interface.Enter virtual terminal password: sanjoseConfigure SNMP Network Management? [no]:
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Setup Interface Summary
First, would you like to see the current interface summary? [yes]:
Interface IP-Address OK? Method Status Protocol
BRI0 unassigned YES unset administratively down down
BRI0:1 unassigned YES unset administratively down down
BRI0:2 unassigned YES unset administratively down down
Ethernet0 unassigned YES unset administratively down down
Serial0 unassigned YES unset administratively down down
Interfaces Found During Startup
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Setup InterfaceParameters
BRI interface needs isdn switch-type to be configuredValid switch types are :
[0] none..........Only if you don't want to configure BRI.[1] basic-1tr6....1TR6 switch type for Germany[2] basic-5ess....AT&T 5ESS switch type for the US/Canada[3] basic-dms100..Northern DMS-100 switch type for US/Canada[4] basic-net3....NET3 switch type for UK and Europe
[5] basic-ni......National ISDN switch type[6] basic-ts013...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 Ethernet0 interface? [no]: yesConfigure IP on this interface? [no]: yes
IP address for this interface: 10.1.1.33Subnet mask for this interface [255.0.0.0] : 255.255.255.0Class A network is 10.0.0.0, 24 subnet bits; mask is /24
Do you want to configure Serial0 interface? [no]:
C d Li I f
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Command-Line InterfaceCommand Modes
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Logging In to the Router
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Router Context-Sensitive Help
Router# clok
Translating "CLOK"
% Unknown command or computer name, or unable to find computer address
Router#
clear clock
Router#
% Incomplete command.
Router#
set Set the time and date
Router#
% Incomplete command.
Router#
hh:mm:ss Current Time
Router# clock set 19:56:00
% Incomplete command.
Router# clock set 19:56:00 ?
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% Incomplete command.
Router# clock set 19:56:00 04 August ?
Year
Command
Prompting
Syntax Checking
CommandPrompting
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Configuring a Router Name
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Configuring Router Passwords
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Router#configure terminal
Router(config)#interface serial 0
Router(config-if)#no shutdown
%LINK-3-UPDOWN: Interface Seria0, changed state to up%LINEPROTO-5-UPDOWN: Line Protocol on Interface Serial0, changed state to up
Enables an interface that is administratively shut down
Router#configure terminal
Router(config)#interface serial 0
Router(config-if)#shutdown%LINK-5-CHANGED: Interface Serial0, changed state to administratively down%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0, changed state to down
Administratively turns off an interface
Disabling or Enabling an Interface
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Unique addressing allows communicationbetween end stations.
Path choice is based on destination address.
Location is represented by an address
Introducing IP Addresses
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Configuring an Ethernet Interface
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Configuring Interface Descriptions
An interface description should identifyimportant information such as a router, acircuit number, or a specific network segment.
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Enter GlobalConfiguration Mode
Router(config-if)#clock rate 64000Router(config-if)#
Router(config)#interface serial 0
Router(config-if)#
Router#configure terminalRouter(config)#
Router(config-if)#bandwidth 64Router(config-if)#exitRouter(config)#exitRouter#
Specify Interface
Set Clock Rate(on DCE interfaces only)
Set Bandwidth(recommended)
Configuring a Serial Interface
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Router show interfaces Command
Router#show interfacesEthernet0 is up, line protocol is up
Hardware is Lance, address is 00e0.1e5d.ae2f (bia 00e0.1e5d.ae2f)Internet address is 10.1.1.11/24MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, rely 255/255, load 1/255Encapsulation ARPA, loopback not set, keepalive set (10 sec)ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:07, output 00:00:08, output hang neverLast clearing of "show interface" counters neverQueueing strategy: fifoOutput queue 0/40, 0 drops; input queue 0/75, 0 drops5 minute input rate 0 bits/sec, 0 packets/sec5 minute output rate 0 bits/sec, 0 packets/sec
81833 packets input, 27556491 bytes, 0 no bufferReceived 42308 broadcasts, 0 runts, 0 giants, 0 throttles
1 input errors, 0 CRC, 0 frame, 0 overrun, 1 ignored, 0 abort0 input packets with dribble condition detected55794 packets output, 3929696 bytes, 0 underruns0 output errors, 0 collisions, 1 interface resets0 babbles, 0 late collision, 4 deferred0 lost carrier, 0 no carrier0 output buffer failures, 0 output buffers swapped out
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Interpreting the Interface Status
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Verifying a Serial Interface Configuration
Router#show interface serial 0Serial0 is up, line protocol is up
Hardware is HD64570Internet address is 10.140.4.2/24MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec, rely 255/255, load 1/255Encapsulation HDLC, loopback not set, keepalive set (10 sec)Last input 00:00:09, output 00:00:04, output hang neverLast clearing of "show interface" counters neverInput queue: 0/75/0 (size/max/drops); Total output drops: 0Queueing strategy: weighted fairOutput queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/1/256 (active/max active/max total)Reserved Conversations 0/0 (allocated/max allocated)
5 minute input rate 0 bits/sec, 0 packets/sec5 minute output rate 0 bits/sec, 0 packets/sec
(output omitted)
BW 64 Kbit,
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Login Banners
show running config and
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show running-config andshow startup-config Commands
wg_ro_c#show startup-configUsing 1359 out of 32762 bytes!
version 12.0!
-- More --
wg_ro_c#show running-configBuilding configuration...
Current configuration:!
version 12.0!
-- More --
In NVRAMIn RAM
Displays the current and saved configuration
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SYUKRON, THANKS, NUHUN,MATUR NUWUN
Presented by: Team ASPRAK JARKOMPOLITEKNIK TELKOM