LAB 1 Basic Cisco configuration commands

1. Boot PC into MS Windows OS

• on boot-up: select DOS (by arrow keys)

1. Start program SecureCRT (there is a shortcut on Windows desktop).

• Communication parameters are: COM1, 9600, N, 8, 1.
• You may select a predefined Session named “Console”
• Connect PC port COM1 with the Console port on the router by flat console cable (DB9 F – RJ45)

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.

1. Turn 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:

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

Set 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?)

Set up static route on each router to “teach” the router where other subnets are:

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

• <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:

• 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)