basic router configuration pdf

8/6/2019 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

-

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

basic router configuration pdf

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