Download - Basic Router Configuration PDF
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Basic configuration
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Router> enable
Router#
Router>
Router> ? Router# ?
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Router#show version
Router>show version
Router# show startup-config
Router#show flash: Router# dir nvram:
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Router#configure terminal
Router#conf t
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1.Hostname
Router#hostname R1 R1# no hostname
Router#
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2.Interface R1(config)#interface fastEthernet 0/0
R1(config)#int f0/0
R1(config-if)#ip address 192.168.1.1 255.255.255.0
R1(config-if)#no shutdown
R1(config-if)#description To R2
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R1#show run
R1#show ip interface brief//xem thng tin tm tt R1#show interface [f0/0|f0/1 ] // xem thng tin chi tit R1(config)#do show ip interface brief
R1(config)#do show interface [f0/0|f0/1 ]
R1# ping 192.168.1.2
R1(config)# do ping 192.168.1.2
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2.Interface
interface Serial0/0/0
description Connect to R4
. . . . . . clock rate 128000
no shutdown exit
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2.Interface
interface Loopback0
description To Internet
. . . . . .
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3.The static default route
R1(config)#ip route 0.0.0.0 0.0.0.0
fastEthernet 0/0
R1#s ow p route xem ng n tuy n
R1#ping 172.16.1.3
R1#traceroute 172.16.1.3
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3. Banner MOTD
banner motd # This is a security system !!! #
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4.1 console password
(config)# line con 0 password cisco
login
Router#exit
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4.2. Enable password
R1(config)#enable password class//clear text
R1(config)#enable secret ccna// encrypted by
R1#show running-config
R1#disable
R1>enable
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4.3.VTY password (for Telnet service)
R2(config)#line vty 0 4
password cisco login
R1# 192.168.1.2
R1#telnet 192.168.1.2 R1#connect 192.168.1.2
R2# exit //ngt phin Telnet, v R1
R2# Ctrl+Shift+6 //tm thi quay v R1, nu Enterth li chuyn n R2
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R2(config)#service password-encryption
//m ha tt c cc password dng clear text
ng t u t to n m c 7 y u c a Cisco. Cracbng GetPass.
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5. Backup configuration files 5.1. Save into the NVRAM
R2#copy running-config startup-config R2#copy run sta
R2#write
R2#show startup-config R2# dir nvram:
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5. Backup configuration files 5.2. Backup into a TFTP server (172.16.1.254)
R2#ping 172.16.1.254
R2#copy running-config tftp:
. . .
Destination filename [R2-confg]?
R2#copy startup-config tftp:
Address or name of remote host []? 172.16.1.254 Destination filename [R2-confg]?
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Restore a configuration file from a TFTP server
Router-X#copy tftp: running-config
Address or name of remote host []?
172.16.1.254
ource ename -con g R2#
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6. Removing All Configurations
R2#erase startup-config
Erasing the nvram filesystem will remove all
configuration files! Continue? [confirm]
Erase of nvram: complete
%SYS-7-NV_BLOCK_INIT: Initialized the
geometry of nvram
R3#reload