Cisco Router commands

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 SatishRana

Enable an interface                     -  Router(config-if)#no shutdown

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

Add an IP address to a interface -   Router(config-if)#ip addr 10.1.1.1 255.255.255.0

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

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 the whole router   -  Router(config)#cdp run

Disable CDP on an interface     -   Router(config-if)#no cdp enable

Cisco Router Show Commands

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 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

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

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

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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