How to use Cisco router commands?

I study this, too. Please ask me if you have any specific configuration. Cisco command encyclopedia

Access-enable allows routers to create temporary access list entries in dynamic access lists

Access-group puts access control lists (ACLs).

Access-list applied to the interface defines a standard IP ACL

Access-template manually replaces the temporary access list entry on the connected router

Appn sends commands to APPN subsystem

Atmsig executes ATM signaling commands

bBoot the operating system manually

. Bandwidth sets the bandwidth of the interface

Banner motd specifies the date information slogan

Bfe sets the emergency manual mode

Boot system specifies the system image loaded when the router starts

Calendar sets the hardware calendar

Cd change path

Cdp enabl. E allows the interface to run CDP protocol

Clear reset function

Clear counters clears the interface counter

Clear interface restarts the hardware logic on the interface

Clockrate sets the clock rate of the serial port hardware connection. If the network interface module and the interface processor can accept the rate

Cmt turns on/off the FDDI connection management function

Config-register modifies the configuration register setting

Configure allows to enter the existing configuration mode, Maintain and save configuration information on the central site

Configure memory to load configuration information from NVRAM

Configure terminal to manually configure from the terminal

Connect to open a terminal connection

Copy configuration or image data

Copy flash tftp. Back up the system image file to the TFTP server

copy running-config startup-config stores the current configuration in RAM to NVRAM

Copy running-config tftp stores the current configuration in RAM to the network TFTP server

Copy tftp fl. Ash downloads new image from TFTP server to Flash

Copy tftp running-config downloads configuration file from TFTP server

Debug uses debugging function

Debug dialer shows what number the interface is dialing and such information

Debug ip rip shows R. IP routing update data

Debug ipx routing activity displays information about routing protocol (RIP). Update packet information

Debug ipx SAP displays information about sap (service announcement protocol) update packet

Debug ISDN q921 displays the access process of data link layer (layer 2) that occurred on the router d-channel isdn interface

Debug ppp displays the services and exchange information that occurred during the implementation of PPP

d. Elete file

Deny sets conditions for a named IP ACL

Dialer idle-timeout specifies the length of idle time before the line is disconnected

Dialer map sets up a serial interface to call one or more places

Dialer wait-for-carrier-ti. Me specifies how long it takes to wait for a carrier

Dialer-group to access control by configuring interfaces belonging to a specific dial-up group

Dialer-list protocol defines a digital data receiver (DDR) dial-up table to control dial-up through a protocol or a combination of ACL and protocol

Dir displays files on a given device.

Disable the privileged mode

Disconnect the established connection

Enable the privileged mode

Enable password to determine a password to prevent unauthorized access to the router

Enable password to set local passwords to control access at different privilege levels < P> Enable secret defines an extra layer of security for the enable password command (mandatory security, Passwords are not displayed in plain text)

Encapsulation frame-relay starts frame relay encapsulation

Encapsulation novell-ether specifies Novell's unique format used on network segments

Encapsulation PPP sets PPP as the encapsulation method used by serial port or ISDN interface

Encapsulation sap stipulates that the password of Cisco in Ethernet 82.2 format used on network segment is sap

End to exit configuration mode

Erase to delete flash memory or configure cache

Erase startup-config to delete the contents in NVRAM

Exec-timeout configuration. Set the time that the EXEC command interpreter waits before detecting user input

Exit to exit all configuration modes or close an active terminal session and terminate an EXEC

Exit to terminate any configuration mode or close an active session and end the EXEC

format formatting device

Frame-relay local-dlci. Start the local management interface (LMI) for serial lines encapsulated by Frame Relay

Help Get an interactive help system

History View history

Hostname uses a host name to configure the router. The host name uses

Interface to set the interface type and input the interface configuration mode

Interface to configure the interface type and enter the interface configuration mode

Interface serial to select the interface and input the interface configuration mode

Ip access-group control to one. Interface access

Ip address sets the network logical address of the interface

Ip address sets an interface address and subnet mask and starts IP processing

Ip default-network establishes a default route

Ip domain-lookup allows the router to use DNS

Ip by default. Host defines the mapping from static host name to IP address

Ip name-server specifies at most 6 server addresses for name-address resolution

Ip route establishes a static route

IP uncounted In the case of assigning a clear IP address to an interface, Start the process of Internet Protocol (IP) on the serial port

Ipx delay set point count

Ipx ipxwan starts the IPXWAN protocol on the serial port

Ipx maximum-paths When forwarding packets, set the number of equivalent paths used by Cisco IOS software

Ipx network in a special Start the routing of Internet packet exchange (IPX) on the fixed interface and select the type of encapsulation (encapsulated by frame)

Ipx router specifies the routing protocol to be used

Ipx routing starts IPX routing

Ipx sap-interval sets less frequent SAP (Service Advertising Protocol) updates on slower links

Ipx type-2-input-checks restricts the acceptance of IPX2 packet broadcasting

Isdn spid1 specifies the service profile number (SPID) that has been allocated to B1 channel by ISDN service provider on the router

ISDN SPID 2 specifies the service profile that has been allocated to B2 channel by ISDN service provider on the router. No. (SPID)

Isdntch-type specifies the type of switch in the central office area on the ISDN interface

keepalive determines a specific line and starts line configuration

Line co for serial line LMI (local management interface) mechanism encapsulated by frame relay

Lat opens LAT connection

line. The ncole sets the console port line

Line vty specifies a virtual terminal for remote console access

Lock the terminal console

Login starts the password check during the terminal session login

Login logs in as a user. Password verification is allowed when logging in

Logout exits the EXEC mode

Mbranch tracks multicast address down and routes it to the terminal

Media-type defines the media type

Metric holddown isolates the new IGRP routing information from the IGRP routing information in use for a period of time

Mrbranch resolves multicast address routing to branch

Mrinfo obtains neighbor and version information from multicast router

Mstat displays statistics after tracing multicast address for many times

Mtrace tracks multicast address path from source to target

Name-connection has been named. Existing network connection

Ncia turns on/off NCIA server

Network assigns a NIC-based address to a router directly connected to it, and links the network with the routing process of an IGRP. In IPX router configuration mode, Activate the enhanced IGRP

Network on the network, specify a network address segment directly connected to the router

Network-number, and specify a directly connected network

No shutdown, open a closed interface

Pad, open an X.29 PAD connection

p. Ermit sets conditions for a named IP ACL

Ping sends the packet of ICMP response request to another node on the network to check the reachability of the host and the connectivity of the network to diagnose the basic connectivity of the network

Ping sends an echo request, Diagnose basic network connectivity

Ppp starts IETF point-to-point protocol

Ppp authentication starts Challenge Handshake Authentication Protocol (CHAP) or Password Authentication Protocol (PAP) or both. And specify the order of CHAP and PAP authentication selected on the interface.

Ppp chap hostname When using CHAP for authentication, create a group of dial-up routers that seem to be the same host.

Ppp chap password sets a password. The password is sent to the host that authenticates the router. The command restricts the number of user names/passwords entering the router.

Ppp pap sent-username enables remote PAP support for an interface. And in the process of PAP verifying peer request packets, sent-username and password

protocols are used to define an IP routing protocol, which can be RIP, IGRP, OSPF, or enhanced IGRP

Pwd to display the current device name

Reload and perform cold start; Restart the operating system

Rlogin to open an active network connection

Router uses the IP routing protocol defined in the first item as the routing process. For example, router rip selects RIP as the routing protocol

Router igrp starts the routing process of IGRP

Router rip selects RIP as the routing protocol

Rsh executes a remote command

Sdlc sends an SDLC test frame

Send. Send message on tty line

Service password-encryption to encrypt password

Setup runs Set.