Cisco Router
Configuration Commands -
Lists how to enable and disable interfaces, add IP addresses to interfaces,
enable RIP or IGRP and set passwords.
Cisco Router
Show Commands - Handy
show commands to check on the status of interfaces.
Cisco Router
Basic Operations -
Covers getting into and out of different modes. Also, some handy shortcut keys
are included.
Cisco Router
Copy Commands - How
to save and backup your router configuration and IOS file.
Cisco Router
Debug Commands - Some
useful debug commands.
Cisco Router
Configuration Commands
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)#ipaddr 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-configtftp
|
Merge TFTP configuration with current
router configuration held in DRAM
|
copy tftpruning-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 ipigrp events
|
Enable detailed IGRP debug information
|
debug ipigrp 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
|
