M. Dahshan - TCOM52721 TCOM 5272 Telecomm Lab Dr. Mostafa Dahshan OU-Tulsa 4W 2 nd floor

M. Dahshan - TCOM52722 Acknowledgements  Some notes in this presentation were imported from notes of Dr. Anindya Das  Some materials are imported from CCNA Intro Exam Certification Guide CCNA ICND Exam Certification Guide

M. Dahshan - TCOM52723

4 Command Line Interface CLI  Access Methods Console port Dial-up to aux port Telnet

M. Dahshan - TCOM52725 Password Configuration  Three different passwords  Telnet supports 5 concurrent connections

M. Dahshan - TCOM52726 Access Modes  User mode Look around without making harmful changes  Privileged mode Powerful, privileged commands Copy configuration file  Configuration mode Change router configuration

M. Dahshan - TCOM52727 Access Modes

M. Dahshan - TCOM52728 Getting Help

M. Dahshan - TCOM52729 Commands and Contexts  Global commands Only one such parameter per router Examples  hostname: set the hostname of the router  interface: set the interface to configure  Subcommands Multiple parameters of this type Example: multiple interfaces

M. Dahshan - TCOM Context Setting  Set the context  Enter commands for the context  Example Router(config)#interface ethernet 0 Router(config-if)#ip address Router(config-if)#no shutdown  Note: commands take effect immediately when you hit “Enter”

M. Dahshan - TCOM Example

M. Dahshan - TCOM Mode Switching  Enter privileged mode enable  Enter configuration mode configuration terminal (or config t)  Exit configuration mode exit (or Ctrl+Z)

M. Dahshan - TCOM Display Configuration  show is the most commonly used command  show running-config displays configurations in RAM

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M. Dahshan - TCOM Basic Administrative Config  A hostname  DNS Server (so that commands can use host names)  A password for the console port  A password for telnet access  Enable secret password to protect access to privileged mode  A banner string

M. Dahshan - TCOM Network Example

M. Dahshan - TCOM IP Address Configuration

M. Dahshan - TCOM Clock Rate  In real networks, the clock rate is controlled by CSU/DSU from the service provider  A CSU/DSU is a digital interface device used to connect the router to the service provider’s line  CSU: Channel Service Unit  DSU: Data Service Unit

M. Dahshan - TCOM WAN Connection

M. Dahshan - TCOM Setting Clock Rate  In a lab testing environment, no need for CSU/DSU  Can use DTE and DCE cables and connect routers back-to-back  Clock rate must be set at the router connected to the DCE cable Router#interface Serial 0  Router(config-if)#clock rate 56000

M. Dahshan - TCOM Routing Protocol  Configure routing protocol to be used RIP, IGRP, OSPF, etc  Commands: Router(config)#router rip Router(config-router)#network  Remember: use the network number, not the subnet number NOT ,

M. Dahshan - TCOM RIP Configuration  For each interface matching the network number, the network commands causes the router to: Broadcast or multicast routing updates out an interface Listen for incoming updates on that interface Include the subnet off that interface in the routing updates

M. Dahshan - TCOM Access Control  Set passwords for console/telnet access  For Console: Router(config)#line console 0 Router(config-line)#password cisco Router(config-line)#login  For Telnet (lines 0 to 4) Router(config)#line vty 0 4 Router(config-line)#password cisco Router(config-line)#login

M. Dahshan - TCOM Interface Status  When configuration is complete, each interface must be turned ON Router#interface Serial 0  Router(config-if)#no shutdown  Do the same on all other interfaces

M. Dahshan - TCOM Router Configuration Summary 1.Set a hostname for the router 2.Set enable password 3.Configure IP addresses for interfaces 4.Configure clock rate on DCE interfaces 5.Configure routing protocol 6.Configure access control 7.Turn on interfaces

M. Dahshan - TCOM527226

M. Dahshan - TCOM Configure a Small Network

M. Dahshan - TCOM Router: Albuquerque !hostname Albuquerque ! !enable secret 5 $1$u76B$IOFVJ7VxfVXYVpGDrFTcI0 ! interface Serial0/0 ip address clock rate no shutdown ! interface Serial0/1 ip address clock rate no shutdown

M. Dahshan - TCOM Router: Albuquerque (2) interface FastEthernet0/1 ip address no shutdown ! router rip network ! line con 0 password cisco login line aux 0 line vty 0 4 password cisco login ! end

M. Dahshan - TCOM Router: Yosemite hostname Yosemite ! enable secret 5 $1$u76B$IOFVJ7VxfVXYVpGDrFTcI0 ! interface Serial0/0 ip address no shutdown ! interface Serial0/1 ip address no shutdown !

M. Dahshan - TCOM Router: Yosemite (2) interface FastEthernet0/1 ip address no shutdown ! router rip network ! line con 0 password cisco login line aux 0 line vty 0 4 password cisco login ! end

M. Dahshan - TCOM Router: Seville hostname Seville ! enable secret 5 $1$u76B$IOFVJ7VxfVXYVpGDrFTcI0 ! interface Serial0/0 ip address no shutdown ! interface Serial0/1 ip address clock rate no shutdown

M. Dahshan - TCOM Router: Seville (2) interface FastEthernet0/1 ip address no shutdown ! router rip network ! line con 0 password cisco login line aux 0 line vty 0 4 password cisco login ! end

M. Dahshan - TCOM Switch IP Configuration  Press “K” for command line >enable #configure terminal (config)#ip address  Repeat the same steps for other switches

M. Dahshan - TCOM527235

M. Dahshan - TCOM Homework  Homework is posted to the D2L page