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Cisco 640-802
cisco
| Question | Answer |
|---|---|
| Router> | User mode |
| Router# | Privileged mode |
| Router(config)# | Global configuration mode |
| Router(config-if)# | Interface mode |
| Router(config-subif)# | Subinterface mode |
| Router(config-line)# | Line mode |
| Router(config-router)# | Router configuration mode |
| Router> | Can see config, but not change |
| Router# | Can see config and move to make changes |
| Router#config t Router(config)# | Moves to global config mode This prompt indicates that you can start making changes |
| Router(config)#hostname Cisco Cisco(config)# | Name can be any word you choose |
| Router(config)#enable password cisco | Sets enable password |
| Router(config)#enable secret class | Sets enable secret password |
| Router(config)#line con 0 Router(config-line)#password console Router(config-line)#login | Enters console-line mode Sets console-line mode password to console Enables password checking at login |
| Router(config)#line vty 0 4 Router(config-line)#password telnet Router(config-line)#login | Enters vty line mode for all 5 vty lines Sets vty password to telnet Enables password checking at login |
| Router(config)#line aux 0 Router(config-line)#password backdoor Enables password checking at login | Enters auxiliary line mode Sets auxiliary line mode password to backdoor Enables password checking at login |
| Router(config)#service passwordencryption | Applies a weak encryption to passwords |
| Router(config)#enable password cisco | Sets enable password to cisco |
| Router(config)#line con 0 | 0 |
| Router(config-line)#password Cisco | Continue setting passwords as above |
| Router(config)#no service passwordencryption | Turns off password encryption |
| Router#show ? | Lists all show commands available |
| Router#show interfaces | Displays statistics for all interfaces |
| Router#show interface serial 0 | Displays statistics for a specific interface, in this case Serial 0 |
| Displays statistics for a specific interface, in this case Serial 0 | Displays a summary of all interfaces, including status and IP address assigned |
| Router#show controllers serial 0 | Displays statistics for interface hardware. Statistics display if the clock rate is set and if the cable is DCE, DTE, or not attached |
| Router#show clock | Displays time set on device |
| Router#show hosts | Displays local host-to-IP address cache. These are the names and addresses of hosts on the network to which you can connect |
| Router#show users | Displays all users connected to device |
| Router#show history | Displays history of commands used |
| Router#show flash | Displays info about Flash memory |
| Router#show version | Displays info about loaded software version |
| Router#show arp | Displays the ARP table |
| Router#show protocols | Displays status of configured Layer 3 protocols |
| Router#show startup-config | Displays configuration saved in NVRAM |
| Router#show running-config | Displays configuration currently running in RAM |
| Router(config)#int s0 Router(config)#int s0 | Moves to interface S0 mode |
| Router(config-if)#exit Router(config-if)#int e0 | In int S0, move to E0 |
| Router(config)#int e0 | Prompt does not change; be careful |
| Router(config)#int s0/0 | Moves to interface Serial 0/0 mode |
| Router(config-if)#description Link to ISP | Optional descriptor of the link is locally significant |
| Router(config-if)#ip address 192.168.10.1 255.255.255.0 | Assigns address and subnet mask to interface |
| Router(config-if)#clock rate 56000 | Assigns a clock rate for the interface |
| Router(config-if)#no shut | Turns interface on |
| Router(config)#int fa0/0 | Moves to Fast Ethernet 0/0 interface mode |
| Router(config-if)#description Accounting LAN | Optional descriptor of the link is locally significant |
| Router(config-if)#ip address 192.168.20.1 255.255.255.0 | Assigns address and subnet mask to interface |
| Router(config-if)#no shut | Turns interface on |
| Router(config)#banner motd # This is a secure system. Authorized Personnel Only! # Router(config)# | # is known as a delimiting character. The delimiting character must surround the banner message and can be any character so long as it is not a character used within the body of the message |
| Router(config)#clock timezone EST –5 | Sets the time zone for display purposes. Based on coordinated universal time (Eastern Standard Time is 5 hours behind UTC) |
| Router(config)#ip host london 172.16.1.3 | Assigns a host name to the IP address. After this assignment, you can use the host name instead of an IP address when trying to Telnet or ping to that address |
| Router#ping london = Router#ping 172.16.1.3 | TIP: The default port number in the ip host command is 23, or Telnet. If you want to Telnet to a device, just enter the IP host name itself: Router#london = Router#telnet london = Router#telnet 172.16.1.3 |
| Router(config)#no ip domain-lookup Router(config)# | Turns off trying to automatically resolve an unrecognized command to a local host name |
| Router(config)#line con 0 Router(config-line)#logging synchronous | Turns on synchronous logging. Information items sent to console will not interrupt the command you are typing. The command will be moved to a new line |
| Router(config)#line con 0 Router(config-line)#exec-timeout 0 0 Router(config-line)# | Sets time limit when console automatically logs off. Set to 0 0 (minutes seconds) means console never logs off |
| Router#copy run start | Saves the running-config to local NVRAM |
| Router#copy run tftp | Saves the running-config remotely to TFTP server |
| Router#erase start | Deletes the startup-config file from NVRAM |
| Router>en | Enters privileged mode |
| Router#clock set 18:30:00 15 Nov 2004 | Sets local time on router |
| Router#config t | Enters global config mode |
| Router(config)#hostname Boston | Sets router name to Boston |
| Boston(config)#no ip domain-lookup | Turns off name resolution on unrecog-nized commands (spelling mistakes) |
| Boston(config)#banner motd # This is the Boston Router. Authorized Access Only # | Creates an MOTD banner |
| Boston(config)#clock timezone EST –5 | Sets time zone to Eastern Standard Time (–5 from UTC) |
| Boston(config)#enable secret cisco | Enable secret password set to cisco |
| Boston(config)#service password-encryption | Passwords will be given weak encryption |
| Boston(config)#line con 0 | Enters line console mode |
| Boston(config-line)#logging sync | Commands will not be interrupted by unsolicited messages |
| Boston(config-line)#password class | Sets password to class |
| Boston(config-line)#login | Enables password checking at login |
| Boston(config-line)#line vty 0 4 | Moves to virtual Telnet lines 0 through 4 |
| Boston(config-line)#password class | Sets password to class |
| Boston(config-line)#login | Enables password checking at login |
| Boston(config-line)#line aux 0 | Moves to line auxiliary mode |
| Boston(config-line)#password class | Sets password to class |
| Boston(config-line)#login | Enables password checking at login |
| Boston(config-line)#exit | Moves back to global config mode |
| Boston(config)#no service passwordencryption | Turns off password encryption |
| Boston(config)#int fa 0/0 | Moves to Fast Ethernet 0/0 mode |
| Boston(config-if)#desc Engineering LAN | Sets locally significant description of the interface |
| Boston(config-if)#ip address 172.16.10.1 255.255.255.0 | Assigns IP address and subnet mask to the interface |
| Boston(config-if)#no shut | Turns on the interface |
| Boston(config-if)#int s0/0 | Moves directly to Serial 0/0 mode |
| Boston(config-if)#desc Link to Buffalo Router | Sets locally significant description of the interface |
| Boston(config-if)#ip address 172.16.20.1 255.255.255.0 | Assigns IP address and subnet mask to the interface |
| Boston(config-if)#clock rate 56000 | Sets a clock rate for serial transmission (DCE cable must be plugged into this interface) |
| Boston(config-if)#no shut | Turns on the interface |
| Boston(config-if)#exit | Moves back to global config mode |
| Boston(config)#ip host buffalo 172.16.20.2 | Sets a local host name resolution to IP address 172.16.20.2 |
| Boston(config)#exit | Moves back to privileged mode |
| Boston#copy run start | Saves running-config to NVRAM |
Created by:
alex185
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