NET1014 Lab 9-Subnet an IPv4 Network Addressing Table Solution

Packet Tracer – Subnet an IPv4 Network
Addressing Table
Device Interface IP Address Subnet Mask Default Gateway
CustomerRouter
CustomerRouter
CustomerRouter G0/0 blank blank N/A
N/A
N/A
G0/1 blank blank
S0/1/0 209.165.201.2 255.255.255.252
LAN-A Switch VLAN1 blank blank blank
LAN-B Switch VLAN1 blank blank blank
PC-A NIC blank blank blank
PC-B NIC blank blank blank
ISPRouter
ISPRouter G0/0 209.165.200.225 255.255.255.224 N/A N/A
S0/1/0 209.165.201.1 255.255.255.252
ISPSwitch VLAN1 209.165.200.226 255.255.255.224 209.165.200.225
ISP Workstation NIC 209.165.200.235 255.255.255.224 209.165.200.225
ISP Server NIC 209.165.200.240 255.255.255.224 209.165.200.225
Objectives
Part 1: Design an IPv4 Network Subnetting Scheme
Part 2: Configure the Devices
Part 3: Test and Troubleshoot the Network
Background / Scenario
In this activity, you will subnet the Customer network into multiple subnets. The subnet scheme should be based on the number of host computers required in each subnet, as well as other network considerations, like future network host expansion.
After you have created a subnetting scheme and completed the table by filling in the missing host and interface IP addresses, you will configure the host PCs, switches and router interfaces.
After the network devices and host PCs have been configured, you will use the ping command to test for network connectivity.
Step 1: Create a subnetting scheme that meets the required number of subnets and required number of host addresses.
b. The second subnet is the LAN-B network. You need a minimum of 40 host IP addresses.
c. You also need at least two additional unused subnets for future network expansion.
Note: Variable length subnet masks will not be used. All of the device subnet masks should be the same length.
d. Answer the following questions to help create a subnetting scheme that meets the stated network requirements:
Questions:
How many host addresses are needed in the largest required subnet?
Type your answers here.
What is the minimum number of subnets required?
Type your answers here.
The network that you are tasked to subnet is 192.168.0.0/24. What is the /24 subnet mask in binary?
Type your answers here.
e. The subnet mask is made up of two portions, the network portion, and the host portion. This is represented in the binary by the ones and the zeros in the subnet mask.
Questions:
In the network mask, what do the ones represent?
Type your answers here.
In the network mask, what do the zeros represent?
Type your answers here.
f. To subnet a network, bits from the host portion of the original network mask are changed into subnet bits.
The number of subnet bits defines the number of subnets.
Questions:
Given each of the possible subnet masks depicted in the following binary format, how many subnets and how many hosts are created in each example?
Hint: Remember that the number of host bits (to the power of 2) defines the number of hosts per subnet
(minus 2), and the number of subnet bits (to the power of two) defines the number of subnets. The subnet bits (shown in bold) are the bits that have been borrowed beyond the original network mask of /24. The /24 is the prefix notation and corresponds to a dotted decimal mask of 255.255.255.0.
1) (/25) 11111111.11111111.11111111.10000000 Dotted decimal subnet mask equivalent:
Type your answers here.
Number of subnets? Number of hosts?
Type your answers here.
2) (/26) 11111111.11111111.11111111.11000000 Dotted decimal subnet mask equivalent:
Type your answers here.
Number of subnets? Number of hosts?
Type your answers here.
3) (/27) 11111111.11111111.11111111.11100000 Dotted decimal subnet mask equivalent:
Type yor answers here.
Number of subnets? Number of hosts?
Type your answers here.
4) (/28) 11111111.11111111.11111111.11110000 Dotted decimal subnet mask equivalent:
Type your answers here.
Number of subnets? Number of hosts?
Type your answers here.
5) (/29) 11111111.11111111.11111111.11111000 Dotted decimal subnet mask equivalent:
Type your answers here.
Number of subnets? Number of hosts?
Type your answers here.
6) (/30) 11111111.11111111.11111111.11111100 Dotted decimal subnet mask equivalent:
Type your answers here.
Number of subnets? Number of hosts?
Type your answers here.
Considering your answers above, which subnet masks meet the required number of minimum host addresses?
Type your answers here.
Considering your answers above, which subnet masks meets the minimum number of subnets required?
Type your answers here.
Considering your answers above, which subnet mask meets both the required minimum number of hosts and the minimum number of subnets required?
Type your answers here.
When you have determined which subnet mask meets all of the stated network requirements, derive each of the subnets. List the subnets from first to last in the table. Remember that the first subnet is 192.168.0.0 with the chosen subnet mask.
Subnet Address Prefix Subnet Mask
blank blank blank
blank blank blank
blank blank blank
blank blank blank
Step 2: Fill in the missing IP addresses in the Addressing Table
Assign IP addresses based on the following criteria: Use the ISP Network settings as an example. a. Assign the first subnet to LAN-A.
1) Use the first host address for the CustomerRouter interface connected to LAN-A switch.
2) Use the second host address for the LAN-A switch. Make sure to assign a default gateway address for the switch.
3) Use the last host address for PC-A. Make sure to assign a default gateway address for the PC. b. Assign the second subnet to LAN-B.
1) Use the first host address for the CustomerRouter interface connected to LAN-B switch.
2) Use the second host address for the LAN-B switch. Make sure to assign a default gateway address for the switch.
3) Use the last host address for PC-B. Make sure to assign a default gateway address for the PC.
Part 2: Configure the Devices
Configure basic settings on the PCs, switches, and router. Refer to the Addressing Table for device names and address information.
Step 1: Configure CustomerRouter.
a. Set the enable secret password on CustomerRouter to Class123
b. Set the console login password to Cisco123.
c. Configure CustomerRouter as the hostname for the router.
d. Configure the G0/0 and G0/1 interfaces with IP addresses and subnet masks, and then enable them.
e. Save the running configuration to the startup configuration file.
Step 2: Configure the two customer LAN switches.
Configure the IP addresses on interface VLAN 1 on the two customer LAN switches. Make sure to configure the correct default gateway on each switch.
Step 3: Configure the PC interfaces.
Configure the IP address, subnet mask, and default gateway settings on PC-A and PC-B.
Part 3: Test and Troubleshoot the Network
In Part 3, you will use the ping command to test network connectivity.
a. Determine if PC-A can communicate with its default gateway. Do you get a reply?
Type your answers here.
b. Determine if PC-B can communicate with its default gateway. Do you get a reply?
Type your answers here.
c. Determine if PC-A can communicate with PC-B. Do you get a reply?
Type your answers here.
If you answered “no” to any of the preceding questions, then you should go back and check your IP address and subnet mask configurations, and ensure that the default gateways have been correctly configured on PCA and PC-B.
End of Document