CISCO IOS Command

Terdapat 3 jenis modes yang beroperasi didalam IOS Cisco.

Disabled mode

• Digunakan untuk bilangan command yang terhad
• Digunakan untuk mengawal router

Enabled mode

• Digunakan untuk memaparkan maklumat konfigurasi, memasukan mode konfigurasi, dan membuat perubahan kedalam konfigurasi.

Configuration mode

• Digunakan bagi memasukan dan mengkemaskinikan jangkamasa konfigurasi

Command bagi memaparkan versi perisian yang digunakan.

Cisco>en

//untuk memasuki enable mode

Cisco#wr term // Memaparkan konfigurasi yang sedang berjalan

Building configuration...
Current configuration:
!
version 11.2
no service udp-small-servers
no service tcp-small-servers
!
hostname Cisco
!
interface Ethernet0                       

 ip address 192.168.1.1 255.255.255.0
!
interface Serial0
 ip address 192.168.6.1 255.255.255.0
 encapsulation frame-relay
 frame-relay lmi-type ansi
!
interface Serial1
 ip address 192.168.4.2 255.255.255.0
 encapsulation frame-relay
 bandwidth 1536
 keepalive 5
 frame-relay map ip 192.168.4.1 101 IETF
!
router rip
 version 2
 network 192.168.4.0
 network 192.168.6.0
 neighbor 192.168.6.2
 neighbor 192.168.4.1
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.6.2
ip route 0.0.0.0 0.0.0.0 192.168.4.1
!
line con 0
line aux 0
line vty 0 4
login
!
end

Memaparkan IP Ethernet

Router#wr term    //semasa proses konfigurasi dijalankan, kita akan lihat seksyen ethernet 0
interface Ethernet0 
ip address 38.150.93.1 255.255.255.0 
no ip directed-broadcast


Memaparkan Serial IP

Router#wr term   //semasa proses konfigurasi dijalankan, kita akan lihat seksyen interface serial0



interface Serial0 
ip address 38.21.10.100 255.255.255.0
ip broadcast-address 38.21.10.255
ip access-group 106 in
encapsulation frame-relay
bandwidth 56
no fair-queue
frame-relay map ip 38.21.10.1 500 IET


Memaparkan Default Route
Router#wr term     //semasa proses konfigurasi dijalankan, kita akan lihat seksyen ip rouute
ip route 0.0.0.0 0.0.0.0 38.167.29.1    //IP yang terakhir merupakan POP IP
Memaparkan Filters
Router#wr term     //lihat di bawah interface serial0, cari



interface Serial0
ip access-group 104 in     //ini bermaksud access-group 104 adalah inbound filter set
ip access-group 105 out     //access-group 105 adalah oubound filter set



//Contoh penyata bagi access-list
access-list 104 deny   ip 38.166.101.0 0.0.0.255
any
access-list 104 permit tcp any any established
access-list 104 permit tcp any eq ftp-data any gt 1023
access-list 104 permit udp any eq domain any gt 1023
access-list 104 permit udp any eq domain any eq domain
access-list 104 permit icmp any any
access-list 104 permit udp any eq snmp any gt 1023
access-list 105 deny   ip any 38.166.101.0 0.0.0.255
access-list 105 permit tcp any any established
access-list 105 permit tcp any any eq ftp
access-list 105 deny   udp any eq netbios-ns any
access-list 105 deny   udp any eq netbios-dgm any
access-list 105 permit ip any any


Memaparkan Bandwidth
Router#wr term     //semasa proses konfigurasi dijalankan, kita akan lihat seksyen interface serial 0
interface Serial0
ip address 38.21.10.100 255.255.255.0
ip broadcast-address 38.21.10.255
ip access-group 106 in
encapsulation frame-relay
bandwidth 56
no fair-queue
frame-relay map ip 38.21.10.1 500 IET

Menambah Static Route
Cisco#config t     //untuk masuk ke dalam mode konfigurasi router
Cisco(config)#ip route <Destination><jarak><Subnet Mask ><jarak><Gateway>


Contoh :
Cisco(config)#ip route 38.222.75.0 255.255.255.0 38.20.5.1

Cisco(config)#<ctrl + z>   //untuk keluar dari mode config
Cisco#wr mem  //simpan konfigurasi kedalam memori


Menukar nombor panggilan
test.com>en    //untuk memasuki Enable Mode router
//perlu masukkan password bagi router yang telah disetkan passwordnya
//password yang telah dimasukkan tidak akan kelihatan
//kemudian tekan <enter>Password:
test.com#show config     //memaparkan konfigurasi router, cari baris
dialer map IP 38.1.1.1 speed 64 name LD3330 2707000    //2702000 adalah nombor panggilan
test.com#config t    //untuk memasuki terminal konfigurasi
Enter configuration commands, one per line.  End with CNTL/Z.
Enter the interface that the dialer map IP line is under:
test.com(config)#interface BRI0     //pilih interface berdasarkan name LD3330
//masukkan nombor telefon yang baru di ruangan dialer map ip
test.com(config)#dialer map IP 38.1.1.1 speed 64 name LD3330 [nombor baru]    
//kemudian buang talian bagi nombor panggilan map IP yang lamatest.com(config)#no dialer map IP 38.1.1.1 speed 64 name LD3330 2707020
test.com(config)# <crtl + z>   //untuk keluar dari mode konfig
test.com# write mem    //untuk simpan konfigurasi baru kedalam memory
Building configuration...
[OK]
test.com#show config  //untuk membuat pengesahan bagi nombor panggilan baru didalam konfigurasi

Menghidupkan & Memadam Filters 





Memadamkan filter

Router#config t    //memasuki mode configurasi
Router(config)#interface Serial0    //memilih interface yang mahu dipadamkan
Router(config-if)#no ip access-group 104 in
Router(config-if)#no ip access-group 105 out
Router(config-if)# <ctrl +z>
Router#wr mem
Building configuration...
[OK]
Router#

Menghidupkan FIlters

Router#config t
Router(config)#interface Serial0
Router(config-if)#ip access-group 104 in
Router(config-if)#ip access-group 105 out
Router(config-if)# <ctrl +z>
Router#wr mem
Building configuration...
[OK]
Router#

Ping daripada Router




Cisco>en    //untuk masuk ke enable mode
Cisco#ping <hostname>
Contoh:
Cisco#ping 38.8.14.2
Resources : TOMAX7

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Cisco Router Command

Requirement	Cisco Command
Set a console password to cisco	Router(config)#line con 0 Router(config-line)#login Router(config-line)#password cisco
Set a telnet password	Router(config)#line vty 0 4 Router(config-line)#login Router(config-line)#password cisco
Stop console timing out	Router(config)#line con 0 Router(config-line)#exec-timeout 0 0
Set the enable password to cisco	Router(config)#enable password cisco
Set the enable secret password to peter. This password overrides the enable password and is encypted within the config file	Router(config)#enable secret peter
Enable an interface	Router(config-if)#no shutdown
To disable an interface	Router(config-if)#shutdown
Set the clock rate for a router with a DCE cable to 64K	Router(config-if)clock rate 64000
Set a logical bandwidth assignment of 64K to the serial interface	Router(config-if)bandwidth 64 Note that the zeroes are not missing
To add an IP address to a interface	Router(config-if)#ip addr 10.1.1.1 255.255.255.0
To enable RIP on all 172.16.x.y interfaces	Router(config)#router rip Router(config-router)#network 172.16.0.0
Disable RIP	Router(config)#no router rip
To enable IRGP with a AS of 200, to all interfaces	Router(config)#router igrp 200 Router(config-router)#network 172.16.0.0
Disable IGRP	Router(config)#no router igrp 200
Static route the remote network is 172.16.1.0, with a mask of 255.255.255.0, the next hop is 172.16.2.1, at a cost of 5 hops	Router(config)#ip route 172.16.1.0 255.255.255.0 172.16.2.1 5
Disable CDP for the whole router	Router(config)#no cdp run
Enable CDP for he whole router	Router(config)#cdp run
Disable CDP on an interface	Router(config-if)#no cdp enable

Cisco Router Show Commands

Requirement	Cisco Command
View version information	show version
View current configuration (DRAM)	show running-config
View startup configuration (NVRAM)	show startup-config
Show IOS file and flash space	show flash
Shows all logs that the router has in its memory	show log
View the interface status of interface e0	show interface e0
Overview all interfaces on the router	show ip interfaces brief
View type of serial cable on s0	show controllers 0 (note the space between the ’s’ and the ‘0′)
Display a summary of connected cdp devices	show cdp neighbor
Display detailed information on all devices	show cdp entry *
Display current routing protocols	show ip protocols
Display IP routing table	show ip route
Display access lists, this includes the number of displayed matches	show access-lists
Check the router can see the ISDN switch	show isdn status
Check a Frame Relay PVC connections	show frame-relay pvc
show lmi traffic stats	show frame-relay lmi
Display the frame inverse ARP table	show frame-relay map

Cisco Router Basic Operations

Requirement	Cisco Command
Enable	Enter privileged mode
Return to user mode from privileged	disable
Exit Router	Logout or exit or quit
Recall last command	up arrow or <Ctrl-P>
Recall next command	down arrow or <Ctrl-N>
Suspend or abort	<Shift> and  <Ctrl> and 6 then x
Refresh screen output	<Ctrl-R>
Compleat Command	TAB

Cisco Router Copy Commands

Requirement	Cisco Command
Save the current configuration from DRAM to NVRAM	copy running-config startup-config
Merge NVRAM configuration to DRAM	copy startup-config running-config
Copy DRAM configuration to a TFTP server	copy runing-config tftp
Merge TFTP configuration with current router configuration held in DRAM	copy tftp runing-config
Backup the IOS onto a TFTP server	copy flash tftp
Upgrade the router IOS from a TFTP server	copy tftp flash

Cisco Router Debug Commands

Requirement	Cisco Command
Enable debug for RIP	debug ip rip
Enable summary IGRP debug information	debug ip igrp events
Enable detailed IGRP debug information	debug ip igrp transactions
Debug IPX RIP	debug ipx routing activity
Debug IPX SAP	debug IPX SAP
Enable debug for CHAP or PAP	debug ppp authentication
Switch all debugging off	no debug all undebug all

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