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Requirement |
Cisco Command |
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Set a console password to cisco |
Router(config)#line con 0 |
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Set a telnet password |
Router(config)#line vty 0 4 |
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Stop console timing out |
Router(config)#line con 0 |
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Set the enable password to cisco |
Router(config)#enable password cisco |
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Set the enable secret password to peter. This password overrides the enable password |
Router(config)#enable secret peter |
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Enable an interface |
Router(config-if)#no shutdown |
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To disable an interface |
Router(config-if)#shutdown |
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Set the clock rate for a router with a DCE cable to 64K |
Router(config-if)clock rate 64000 |
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Set a logical bandwidth assignment of 64K to the serial interface |
Router(config-if)bandwidth 64 |
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To add an IP address to a interface |
Router(config-if)#ip addr 10.1.1.1 255.255.255.0 |
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To enable RIP on all 172.16.x.y interfaces |
Router(config)#router rip |
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Disable RIP |
Router(config)#no router rip |
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To enable IRGP with a AS of 200, to all interfaces |
Router(config)#router igrp 200 |
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Disable IGRP |
Router(config)#no router igrp 200 |
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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 |
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Disable CDP for the whole router |
Router(config)#no cdp run |
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Enable CDP for he whole router |
Router(config)#cdp run |
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Disable CDP on an interface |
Router(config-if)#no cdp enable |
Cisco Router Show Commands
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Requirement |
Cisco Command |
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View version information |
show version |
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View current configuration (DRAM) |
show running-config |
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View startup configuration (NVRAM) |
show startup-config |
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Show IOS file and flash space |
show flash |
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Shows all logs that the router has in its memory |
show log |
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View the interface status of interface e0 |
show interface e0 |
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Overview all interfaces on the router |
show ip interfaces brief |
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View type of serial cable on s0 |
show controllers 0 (note the space between the 's' and the '0') |
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Display a summary of connected cdp devices |
show cdp neighbor |
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Display detailed information on all devices |
show cdp entry * |
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Display current routing protocols |
show ip protocols |
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Display IP routing table |
show ip route |
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Display access lists, this includes the number of displayed matches |
show access-lists |
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Check the router can see the ISDN switch |
show isdn status |
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Check a Frame Relay PVC connections |
show frame-relay pvc |
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show lmi traffic stats |
show frame-relay lmi |
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Display the frame inverse ARP table |
show frame-relay map |
Cisco Router Basic Operations
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Requirement |
Cisco Command |
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Enable |
Enter privileged mode |
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Return to user mode from privileged |
disable |
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Exit Router |
Logout or exit or quit |
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Recall last command |
up arrow or |
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Recall next command |
down arrow or |
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Suspend or abort |
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Refresh screen output |
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Compleat Command |
TAB |
Cisco Router Copy Commands
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Requirement |
Cisco Command |
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Save the current configuration from DRAM to NVRAM |
copy running-config startup-config |
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Merge NVRAM configuration to DRAM |
copy startup-config running-config |
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Copy DRAM configuration to a TFTP server |
copy runing-config tftp |
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Merge TFTP configuration with current router configuration held in DRAM |
copy tftp runing-config |
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Backup the IOS onto a TFTP server |
copy flash tftp |
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Upgrade the router IOS from a TFTP server |
copy tftp flash |
Cisco Router Debug Commands
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Requirement |
Cisco Command |
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Enable debug for RIP |
debug ip rip |
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Enable summary IGRP debug information |
debug ip igrp events |
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Enable detailed IGRP debug information |
debug ip igrp transactions |
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Debug IPX RIP |
debug ipx routing activity |
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Debug IPX SAP |
debug IPX SAP |
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Enable debug for CHAP or PAP |
debug ppp authentication |
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Switch all debugging off |
no debug all |