Chapter 04 - Router Conf
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Chapter 04 - Router Conf

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Chapter 04 - Router Conf Chapter 04 - Router Conf Presentation Transcript

  • CONFIGURING A ROUTER TS, PHẠM VĂN TÍNH
    • PART8
    • Objective
    • Name a router
    • Set passwords
    • Examine show commands
    • Configure a serial interface
    • Configure an Ethernet interface
    • Execute changes to a router
    • Save changes to a router
    • Configure an interface description
    • Configure a message-of-the-day banner
    • Configure host tables
    • Understand the importance of backups and documentation
    • Global Configuration Mode
    • All command-line interface (CLI) configuration changes to a Cisco router are made from the global configuration mode. For Examples:
      • Interface mode
      • Line mode
      • Router mode
      • Subinterface mode
      • Controller mode
      • Router# configure terminal
      • Router(config)#
      • exit : Returns the router to global configuration mode from one of these specific configuration modes
      • Ctrl-Z : Returns the router to privileged EXEC mode
    • Overview of Router Modes
    • Configuring a router name
    • Router(config)# hostname Tokyo
    • Tokyo(config)#
    • Configuring router passwords
    enable secret <password>
    • Examining the show commands
    • show interfaces – Displays all the statistics for all the interfaces on the router. For example: Router#show interfaces serial 0/1
    • show controllers serial – Displays information-specific to the interface hardware
    • show version – Displays information about the router and the IOS that is running in RAM
    • show protocol – Displays the global and interface specific status of any configured Layer 3 protocols
    • show startup-config – Displays the saved configuration located in NVRAM
    • show running-config – Displays the configuration currently running in RAM
    • Examining the show commands
    • show clock – Shows the time set in the router
    • show hosts – Displays a cached list of host names and addresses
    • show users – Displays all users who are connected to the router
    • show history – Displays a history of commands that have been entered
    • show flash – Displays information about flash memory and what IOS files are stored there
    • show ARP – Displays the ARP table of the router
    • Configuring a serial interface
    • Enter global configuration mode
    • Enter interface mode
    • Specify the interface address and subnet mask
    • Set clock rate if a DCE cable is connected. Skip this step if a DTE cable is connected.
    • Turn on the interface
    • Router(config)# interface serial 0/0
    • Router(config-if)# ip address < ip address > < netmask >
    • Router(config-if)# clock rate < clock rates >
    • The available clock rates in bits per second are: 1200, 2400, 9600, 19200, 38400, 56000, 64000, 72000, 125000, 148000, 500000, 800000, 1000000, 1300000, 2000000, or 4000000.
    • Interface Configuration Commands
    • Serial Interface Configuration Example
    • Router# configure terminal
    • Router(config)# interface serial 0/0
    • Router(config-if)# ip address 192.168.1.1 255.255.255.0
    • Router(config-if)# clock rate 56000
    • Router(config-if)# no shutdown
    • Router(config-if)# exit
    • Executing adds, moves, and changes
    • Configuring an Ethernet interface
    • Enter global configuration mode
    • Enter interface configuration mode
    • Specify the interface address and subnet mask
    • Enable the interface
    • Router# configure terminal
    • Router(config)# interface e0
    • Router(config-if)# ip address 192.168.1.1 255.255.255.0
    • Router(config-if)# no shutdown
    • Router(config-if)# exit
    • Configuring interface description
    • Enter global configuration mode by entering the command configure terminal .
    • Enter specific interface mode (for example interface Ethernet 0) interface ethernet 0 .
    • Enter the command description followed by the information that is to be displayed. For example, XYZ Network, Building 18 .
    • Exit interface mode back to privileged EXEC mode by using the command ctrl-Z .
    • Save the configuration changes to NVRAM by using the command copy running-config startup-config .
    • Configuring interface description
    • Configuring message-of-the-day (MOTD)
    • Enter global configuration mode by using the command configure terminal .
    • Enter the command banner motd # The message of the day goes here # .
    • Save changes by issuing the command copy running-config startup-config .
    • Configuring message-of-the-day (MOTD)
    • Host name resolution
    • to associate a host name with an IP address.
    • A list of host names and their associated IP addresses is called a host table.
    • Host names, unlike DNS names, are significant only on the router on which they are configured.
    • Configuring host tables
    • Enter global configuration mode in the router.
    • Enter the command ip host followed by the name of the router and all IP addresses associated with the interfaces on each router.
    • Continue entering until all routers in the network are entered.
    • Save the configuration to NVRAM.
    • Copying, editing, and pasting configurations
    • A current copy of the configuration can be stored on a TFTP server. The copy running-config tftp command:
    • Step 1 : Enter the copy running-config tftp command.
    • Step 2 : Enter the IP address of the host where the configuration file will be stored.
    • Step 3 : Enter the name to assign to the configuration file.
    • Step 4 : Confirm the choices by answering yes each time.
    • Store Configuration on a TFTP
    • Restore Configuration from a TFTP
    • Working with release 11.x
    • Working with pre-Release 11.0
    • Summary
    • The router has several modes:
      • User EXEC mode
      • Privileged EXEC mode
      • Global configuration mode
      • Other configuration modes
    • The command-line interface may be used to make changes to the configuration:
      • Setting the hostname
      • Setting passwords
      • Configuring interfaces
      • Modifying configurations
      • Showing configurations
      • Setting the Interface descriptions
      • Setting the Login banners and messages-of-the-day