Monavathia's Blog

CCNA 3 Labskill Chapter 4

Posted on: December 2, 2010

Lab 4.2.3.2 Designing and Applying an IP Addressing Scheme

Rangkaian Jaringan:

 

Device Name Enable Secret Password Enable, Console, and vty Passwords IP Address Subnet

Mask

Default Gateway
Switch1 class cisco VLAN 1: 192.168.1.34 255.255.255.224 (/27) 192.168.1.33
Switch2 class cisco VLAN 1: 192.168.1.66 255.255.255.224 (/27) 192.168.1.65
Router1 class cisco FA0/0: 192.168.1.33

FA0/1: 192.168.1.65

255.255.255.224 (/27) N/A
Host1 N/A N/A 192.168.1.35 255.255.255.224 (/27) 192.168.1.33
Host2 N/A N/A 192.168.1.67 255.255.255.224 (/27) 192.168.1.65

Objectives

• Create a network with two subnets of the same size.

• Verify the status of the network connections.

Background / Preparation

This lab is a review of basic subnetting configuration of a router with two switches attached.

The following resources are required:

• One Cisco 1841 router or similar router with two Ethernet interfaces

• Two Cisco 2960 switches or other comparable switches

• Two Windows-based PCs, each with a terminal emulation program

• At least one RJ-45-to-DB-9 connector console cables to configure the switches

• Four straight-through Ethernet cables

• Access to the PC command prompt

• Access to PC network TCP/IP configuration

Step 1: Cable the network

a. Connect Host1 to Switch1 port Fa0/2, using a straight-through Ethernet cable.

b. Connect Host2 to Switch2 port Fa0/2, using a straight-through Ethernet cable.

c. Connect Switch1 port Fa0/1 to Router1 port Fa0/0, using a straight-through   Ethernet cable.

d. Connect Switch2 port Fa0/1 to Router1 port Fa0/1, using a straight-through Ethernet cable.

Step 2: Configure the router

a. Establish a terminal emulation session from either host to Router1.

b. Configure the router hostname, passwords, interface IP addresses, and subnet mask. Also configure RIP as the routing protocol.

c. Save the configuration.

Step 3: Configure the switches

a. Establish a terminal emulation session to Switch1 from Host1.

b. Configure the switch hostname, passwords, interface VLAN 1 IP address, subnet mask, and default gateway on Switch1.

c. Save the configuration.

d. Establish a terminal emulation session to Switch2 from Host2.

e. Configure the switch hostname, passwords, interface VLAN 1 IP address, subnet mask, and default gateway on Switch2.

f. Save the configuration.

Step 4: Configure the hosts

a. Configure Host1 using the IP address, subnet mask, and default gateway from the table.

b. Configure Host2 using the IP address, subnet mask, and default gateway from the table.

Step 5: Verify connectivity

To verify that the network is set up successfully, ping from Host 1 to Host 2.

Was the ping successful?

Jawab:

  • Ping dari Host 1 ke Host 2

Pingnya  berhasil dilakukan.

If the ping is not successful, verify the connections and configurations again. Check to ensure that all cables are correct and that connections are seated.

  • Ping dari Host 2 ke Host 1

Pingnya  berhasil dilakukan.

Step 6: Reflection

Subnetting allows the addresses in a network range to be split into smaller groups. This lab split the total number of addresses, 256, into smaller groups of equal size.

How many address are in each subnet?

Jawab:

Kelas C : nnnnnnnn.nnnnnnnn.nnnnnnnn.nnnhhhhh

255.255.255.224/27  → 11111111.11111111.11111111.11100000

Host = 2n – 2 = 25– 2= 32 – 2= 30 host atau alamat address yang terbentuk.

How many total subnets were created?

Jawab:

Subnet = 2n = 23 = 8 buah

The subnet mask is 255.255.255.224. How many host bits were “borrowed” for subnetting?

Jawab:

Jumlah bits yang dipinjam adalah: 3 buah

 

What is the total number of network and subnet bits in each address?

Jawab:

Jumlah number jaringan → n adalah 27 buah

Subnet bits setiap alamat adalah 19

 

 

 

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