LAB 1 Basic Cisco configuration commands

1.      Connect PC Ethernet port and Cisco router Ethernet port  by using:

·        Cross-over UTP cable  (cable with pin 1 connected to pin 6 and pin 2 connected to pin 6, both on RJ45 connector) or by using

·        HUB and two straight UTP cables.

2.      Power on the router and look at the massages appearing on the screen, while the router is booting

Part 1

BASIC COMMANDS

Using the commands on the router:

·        show version

·        show ip interface brief        or:       show interface

answer the following questions:

1. Router name:

2. Router type:

3. IOS version:

4. Memory amount:

5. Flash ROM amount:

6. Number and types of interfaces:

Part 2

IP address space for each working group (4 PC, 4 routers) is:

WG1:               192.168.1.0/24

WG2:               192.168.2.0/24

WG3:               192.168.3.0/24

WG4:               192.168.4.0/24

Each WG should split its IP address space to subnets by which they will be able to establish the following connections:

                     Eth.                                                                            Eth.

                                                          Serial

                                            Serial

                                                                                                   Eth

            Eth.                                          Eth.               (this part only  WG 1, 2 and 3)

Part 3

Set up a new  IP address, mask and Default Gateway  on each  WG PC

·        Each WG should decide which IP addresses will be used (from each subnet) for PC to router connection and for router to router connection . 

·        Start -> Settings -> Control pannel -> Network -> TCP/IP Ethernet… -> Properties -> IP address and Gateway

Part 4

Displaying the configurations

     Enter privilege mode (enable)

     Display the configuration saved in NVRAM (show config)

     Display the running configuration (show running-config)

Setting and changing the configuration

     Enter the configuration mode (conf term)

     Change the router name (hostname)

     Exit the privilege mode (CTRL-Z), you are back in Privileged mode!

     Save the configuration (copy running-config startup-config)

Setting the passwords (REMEMBER YOU PASSWORD – we prefer to always use “ceenet”)

     Enter the configuration mode (conf term)

     Specify virtual terminal lines you would like to configure (line vty 0 4)

     Request login authentication (login)

     Set a password for the exec mode (password my_password)

     Set a password for the privileged (enable secret my_password)

     Exit the privilege mode (CTRL-Z), you are back in Privileged mode!

Configuring the interface

     Enter the configuration mode (conf term)

     Select first ethernet interface  (interface ethernet ?    you got all the types of interfaces

                                                      from part 1 task – for example Interface Ethernet0/0)

     Select the ip address and subnet mask (ip address your_IP_address  mask )

     Enable the interface (no shut)

     Exit the privilege mode (CTRL-Z), you are back in Privileged mode!

Checking router status and IP connectivity

     Check host connectivity (ping connected_PC_ip_address)

     Check host reachability (trace connected_PC_ip_address)

     Check status of an interface (show interface eth?)

     Display debug information (debug ip icmp)

     Disable debug information (undebug all)

Part 5

Establishing router to router connectivity:

Configuring the Serial interface:

     Enter the configuration mode (conf term)

     Select first Serial interface  (interface Serial ?    you got all the types of interfaces

                                                      from part 1 task – for example Interface Serial0)

     Select the ip address and subnet mask (ip address your_IP_address  mask )

     Find out which Serial interface got connected DCE and which DTE CISCO cable

·        DTE (Data Terminal Equipment – MALE conector)

·        DCE (Data Communication Equipment – FEMALE connector)

     On Serial Interface with DCE cable enable line CLOCK by entering the command:

·        clock rate 1000000

     Enable the interface (no shut)

     Exit the privilege mode (CTRL-Z), you are back in Privileged mode!

Connect DTE and DCE cable

Checking router status and IP connectivity

     Check neighbor router connectivity (ping connected_router_ip_address)

     Check status of an interface (show interface serial?)

Provide routers  with info where other (not directly connected) subnets  are by configuring static routes on each router:

The command is:

ip route <subnet> <subnet_mask> <next_hop_IP_address>

·        <subnet> is the subnet used for router-to-PC connection on the neighbor router

or the subnet between next two routers

·        <next_hop_IP_address> is IP address of  serial interface on the neighbor router

Check  connectivity  (ping) from your PC to all other PC’s in your WG

·        open DOS window  (Start -> Programs -> DOS)

·        ping host_ip_address

Check  reachibility (traceroute) from your PC to all other PS’s in your WG

·        open DOS window (Start -> Programs -> DOS)

·        tracert host_ip_address

Part 6  (optional)

Connect your network to other WG network (by Ethernet or Serial connection):

·        decide which subnet will be used for interconnection

·        configure static routes to other subnets

·        Check  connectivity  (ping) from your PC to all other PC’s (in others WG)

·        Check  reachibility (traceroute) from your PC to all other PS’s (in others WG)