Cisco Command Summary
- 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) Router(config- Router(config- |
| Set a telnet password | Router(config) Router(config- Router(config- |
| Stop console timing out | Router(config) Router(config- |
| Set the enable password to cisco | Router(config) |
| Set the enable secret password to peter. This password overrides the enable password and is encypted within the config file | Router(config) |
| Enable an interface | Router(config- |
| To disable an interface | Router(config- |
| Set the clock rate for a router with a DCE cable to 64K | Router(config- |
| Set a logical bandwidth assignment of 64K to the serial interface | Router(config- Note that the zeroes are not missing |
| To add an IP address to a interface | Router(config- |
| To enable RIP on all 172.16.x.y interfaces | Router(config) Router(config- |
| Disable RIP | Router(config) |
| To enable IRGP with a AS of 200, to all interfaces | Router(config) Router(config- |
| Disable IGRP | Router(config) |
| Static route the remote network is 172.16.1.0, with a mask of 255.255.255. | Router(config) |
| Disable CDP for the whole router | Router(config) |
| Enable CDP for he whole router | Router(config) |
| Disable CDP on an interface | Router(config- |
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 |
| Recall next command | down arrow or |
| Suspend or abort | and and 6 then x |
| Refresh screen output | |
| 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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