Module 11 Labs

Packet Tracer – Subnet an IPv4 Network © 2019 - 2021 Cisco and/or its affiliates. All rights reserved. Cisco Public Page 3 of 5 www.netacad.com Dotted decimal subnet mask equivalent: Type your answers here. Number of subnets? Number of hosts? Type your answers here. 2) (/26) 11111111.11111111.11111111. 11 000000 Dotted decimal subnet mask equivalent: Type your answers here. Number of subnets? Number of hosts? Type your answers here. 3) (/27) 11111111.11111111.11111111. 111 00000 Dotted decimal subnet mask equivalent: Type yor answers here. Number of subnets? Number of hosts? Type your answers here. 4) (/28) 11111111.11111111.11111111. 1111 0000 Dotted decimal subnet mask equivalent: Type your answers here. Number of subnets? Number of hosts? Type your answers here. 5) (/29) 11111111.11111111.11111111. 11111 000 Dotted decimal subnet mask equivalent: Type your answers here. Number of subnets? Number of hosts? Type your answers here. 6) (/30) 11111111.11111111.11111111. 111111 00 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.

PT Lab 11.5.5 - Subnet an IPv4 Network Submit screenshot of Assessment Items tab

Lab - Calculate IPv4 Subnets © 2013 - 2021 Cisco and/or its affiliates. All rights reserved. Cisco Public Page 3 of 4 www.netacad.com Problem 4: Given: Host IP Address: 192.168.1.245 Original Subnet Mask 255.255.255.0 New Subnet Mask: 255.255.255.252 Find: Number of Subnet Bits blank Number of Subnets Created blank Number of Host Bits per Subnet blank Number of Hosts per Subnet blank Network Address of this Subnet blank IPv4 Address of First Host on this Subnet blank IPv4 Address of Last Host on this Subnet blank IPv4 Broadcast Address on this Subnet blank Problem 5: Given: Host IP Address: 128.107.0.55 Original Subnet Mask 255.255.0.0 New Subnet Mask: 255.255.255.0 Find: Number of Subnet Bits blank Number of Subnets Created blank Number of Host Bits per Subnet blank Number of Hosts per Subnet blank Network Address of this Subnet blank IPv4 Address of First Host on this Subnet blank IPv4 Address of Last Host on this Subnet blank IPv4 Broadcast Address on this Subnet blank

Packet Tracer - Subnetting Scenario © 2014 - 2021 Cisco and/or its affiliates. All rights reserved. Cisco Public Page 2 of 4 www.netacad.com b. How many bits must be borrowed to support the number of subnets in the topology table? Type your answers here. c. How many subnets does this create? Type your answers here. d. How many usable hosts does this create per subnet? Type your answers here. Note : If your answer is less than the 25 hosts required, then you borrowed too many bits. e. Calculate the binary value for the first five subnets. The first two subnets have been done for you. Subnet Network Address Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 0 192.168.100. 0 0 0 0 0 0 0 0 1 192.168.100. 0 0 1 0 0 0 0 0 2 192.168.100. Blank Blank Blank blank Blank Blank Blank blank 3 192.168.100. Blank Blank Blank blank Blank Blank Blank blank 4 192.168.100. Blank Blank Blank blank Blank Blank Blank blank f. Calculate the binary and decimal value of the new subnet mask. First Octet Second Octet Third Octet Mask Bit 7 Mask Bit 6 Mask Bit 5 Mask Bit 4 Mask Bit 3 Mask Bit 2 Mask Bit 1 Mask Bit 0 11111111 11111111 11111111 Blank Blank Blank blank Blank Blank Blank blank First Decimal Octet Second Decimal Octet Third Decimal Octet Fourth Decimal Octet 255. 255. 255. blank g. Fill in the Subnet Table , listing the decimal value of all available subnets, the first and last usable host address, and the broadcast address. Repeat until all addresses are listed. Note: You may not need to use all rows. Subnet Table Subnet Number Subnet Address First Usable Host Address Last Usable Host Address Broadcast Address 0 Blank Blank Blank blank 1 Blank Blank Blank blank 2 Blank Blank Blank blank 3 Blank Blank Blank blank

PT Lab 11.7.5 - Subnetting Scenario Submit screenshot of Assessment Items tab

Packet Tracer - VLSM Design and Implementation Practice © 2013 - 2021 Cisco and/or its affiliates. All rights reserved. Cisco Public Page 3 of 3 www.netacad.com Subnet Description Number of Hosts Needed Network Address/CIDR First Usable Host Address Broadcast Address blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank Step 3: Document the addressing scheme. a. Assign the first usable IP addresses to for the two LAN links and the WAN link. b. Assign the first usable IP addresses to for the two LAN links. Assign the last usable IP address for the WAN link. c. Assign the second usable IP addresses to the switches. d. Assign the last usable IP addresses to the hosts. Part 3: Assign IP Addresses to Devices and Verify Connectivity Most of the IP addressing is already configured on this network. Implement the following steps to complete the addressing configuration. Step 1: Configure IP addressing on the router LAN interfaces. Step 2: Configure IP addressing on the , switch including the default gateway. Step 3: Configure IP addressing on , including the default gateway. Step 4: Verify connectivity. You can only verify connectivity from , , and . However, you should be able to ping every IP address listed in the Addressing Table . End of document

Packet Tracer - Design and Implement a VLSM Addressing Scheme © 2019 - 2021 Cisco and/or its affiliates. All rights reserved. Cisco Public Page 2 of 2 www.netacad.com Instructions You have been given the network address by your customer. The host address requirements are: Requirements Host Requirements: LAN Number of Addresses Required blank blank blank blank blank blank blank blank Design Requirements • Create the addressing design. Follow guidelines provided in the curriculum regarding the order of the subnets. • The subnets should be contiguous. There should be no unused address space between subnets. • Provide the most efficient subnet possible for the point-to-point link between the routers. • Document your design in a table such as the one below. Subnet Description Number of Hosts Needed Network Address/CIDR First Usable Host Address Broadcast Address blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank blank Configuration Requirements Note : You will configure addressing on all devices and hosts in the network. • Assign the first usable IP addresses in the appropriate subnets to [[R1Name]] for the two LAN links and the WAN link. • Assign the first usable IP addresses in the appropriate subnets to [[R2Name]] for the two LANs links. Assign the last usable IP address for the WAN link. • Assign the second usable IP addresses in the appropriate subnets to the switches. • The switch management interface should be reachable from hosts on all of the LANs. • Assign the last usable IP addresses in the appropriate subnets to the hosts. If the addressing design and implementation are correct, all hosts and devices should be reachable over the network. End of document

PT Lab 11.10.1 - Design and Implement a VLSM Addressing Scheme Submit screenshot of Assessment Items tab

© 2019 - 2021 Cisco and/or its affiliates. All rights reserved. Cisco Public Page 1 of 6 www.netacad.com Lab - Design and Implement a VLSM Addressing Scheme Topology Objectives Part 1: Examine Network Requirements Part 2: Design the VLSM Address Scheme Part 3: Cable and Configure the IPv4 Network Background / Scenario Variable Length Subnet Mask (VLSM) was designed to avoid wasting IP addresses. With VLSM, a network is subnetted and then re-subnetted. This process can be repeated multiple times to create subnets of various sizes based on the number of hosts required in each subnet. Effective use of VLSM requires address planning. In this lab, use the 192.168.33.128/25 network address to develop an address scheme for the network displayed in the topology diagram. VLSM is used to meet the IPv4 addressing requirements. After you have designed the VLSM address scheme, you will configure the interfaces on the routers with the appropriate IP address information. The future LANS at BR2 will need to have addresses allocated, but no interfaces will be configured at this time. Note : The routers used with CCNA hands-on labs are Cisco 4221 with Cisco IOS XE Release 16.9.4 (universalk9 image). The switches used in the labs are Cisco Catalyst 2960s with Cisco IOS Release 15.2(2) (lanbasek9 image). Other routers, switches, and Cisco IOS versions can be used. Depending on the model and Cisco IOS version, the commands available and the output produced might vary from what is shown in the labs. Refer to the Router Interface Summary Table at the end of the lab for the correct interface identifiers. Note : Make sure that the routers have been erased and have no startup configurations. If you are unsure, contact your instructor. Required Resources • 2 Routers (Cisco 4221 with Cisco IOS XE Release 16.9.4 universal image or comparable) • 2 Switches (Cisco 2960 with Cisco IOS Release 15.2(2) lanbasek9 image or comparable) • 1 PCs (Windows with terminal emulation program, such as Tera Term) • Console cables to configure the Cisco IOS devices via the console ports • Ethernet and serial cables as shown in the topology

Lab - Design and Implement a VLSM Addressing Scheme © 2019 - 2021 Cisco and/or its affiliates. All rights reserved. Cisco Public Page 2 of 6 www.netacad.com • Windows Calculator (optional) Instructions Part 1: Examine Network Requirements In Part 1, you will examine the network requirements to develop a VLSM address scheme for the network displayed in the topology diagram using the 192.168.33.128/25 network address. Note : You can use the Windows Calculator application and search the internet for an IP subnet calculator to help with your calculations. Step 1: Determine how many host addresses and subnets are available. Questions: How many host addresses are available in a /25 network? Type your answers here. What is the total number of host addresses needed in the topology diagram? Type your answers here. How many subnets are needed in the network topology? Type your answers here. Step 2: Determine the largest subnet. Questions: What is the subnet description (e.g. BR1 LAN or BR1-BR2 link)? Type your answers here. How many IP addresses are required in the largest subnet? Type your answers here. What subnet mask can support that many host addresses? Type your answers here. How many total host addresses can that subnet mask support? Type your answers here. Can you subnet the 192.168.33.128/25 network address to support this subnet? Type your answers here. What are the network addresses that would result from this subnetting? Type your answers here.

Lab - Design and Implement a VLSM Addressing Scheme © 2019 - 2021 Cisco and/or its affiliates. All rights reserved. Cisco Public Page 3 of 6 www.netacad.com Use the first network address for this subnet. Step 3: Determine the second largest subnet. Questions: What is the subnet description? Type your answers here. How many IP addresses are required for the second largest subnet? Type your answers here. What subnet mask can support that many host addresses? Type your answers here. How many total host addresses can that subnet mask support? Type your answers here. Can you subnet the remaining subnet again and still support this subnet? Type your answers here. What are the network addresses that would result from this subnetting? Type your answers here. Use the first network address for this subnet. Step 4: Determine the third largest subnet. Questions: What is the subnet description? Type your answers here. How many IP addresses are required for the next largest subnet? Type your answers here. What subnet mask can support that many host addresses? Type your answers here. How many total host addresses can that subnet mask support? Type your answers here. Can you subnet the remaining subnet again and still support this subnet? pe your answers here.

Lab - Design and Implement a VLSM Addressing Scheme © 2019 - 2021 Cisco and/or its affiliates. All rights reserved. Cisco Public Page 4 of 6 www.netacad.com What are the network addresses that would result from this subnetting? Type your answers here. Use the first network address for this subnet. Use the second network address for the CCTV LAN. Use the third network address for the HVAC C2 LAN. Step 5: Determine the fourth largest subnet. Questions: What is the subnet description? Type your answers here. How many IP addresses are required for the next largest subnet? Type your answers here. What subnet mask can support that many host addresses? Type your answers here. How many total host addresses can that subnet mask support? Type your answers here. Can you subnet the remaining subnet again and still support this subnet? Type your answers here. What are the network addresses that would result from this subnetting? Type your answers here. Use the first network address for this subnet. Part 2: Design the VLSM Address Scheme Step 1: Calculate the subnet information. Use the information that you obtained in Part 1 to fill in the following table. Subnet Description Number of Hosts Needed Network Address /CIDR First Host Address Broadcast Address BR1 LAN 40 BR2 LAN 25 BR2 IoT LAN 5

Lab - Design and Implement a VLSM Addressing Scheme © 2019 - 2021 Cisco and/or its affiliates. All rights reserved. Cisco Public Page 5 of 6 www.netacad.com Subnet Description Number of Hosts Needed Network Address /CIDR First Host Address Broadcast Address BR2 CCTV LAN 4 BR2 HVAC C2LAN 4 BR1-BR2 Link 2 Step 2: Complete the device interface address table. Assign the first host address in the subnet to the Ethernet interfaces. BR1 should be assigned the first host address in the BR1-BR2 Link. Device Interface IP Address Subnet Mask Device Interface BR1 G0/0/0 BR1-BR2 Link BR1 G0/0/1 40 Host LAN BR2 G0/0/0 BR1-BR2 Link BR2 G0/0/1 25 Host LAN Part 3: Cable and Configure the IPv4 Network In Part 3, you will cable the network to match the topology and configure the three routers using the VLSM address scheme that you developed in Part 2. Step 1: Cable the network as shown in the topology. Step 2: Configure basic settings on each router. Open a configuration window a. Assign the device name to the routers. b. Disable DNS lookup to prevent the routers from attempting to translate incorrectly entered commands as though they were hostnames. c. Assign class as the privileged EXEC encrypted password for both routers. d. Assign cisco as the console password and enable login for the routers. e. Assign cisco as the VTY password and enable login for the routers. f. Encrypt the plaintext passwords for the routers. g. Create a banner that will warn anyone accessing the device that unauthorized access is prohibited on both routers. Step 3: Configure the interfaces on each router. a. Assign an IP address and subnet mask to each interface using the table that you completed in Part 2. b. Configure an interface description for each interface. c. Activate the interfaces.

Lab - Design and Implement a VLSM Addressing Scheme © 2019 - 2021 Cisco and/or its affiliates. All rights reserved. Cisco Public Page 6 of 6 www.netacad.com Step 4: Save the configuration on all devices. Step 5: Test Connectivity. a. From BR1, ping BR2’s G0/0/0 interface. b. From BR2, ping BR1’s G0/0/0 interface. c. Troubleshoot connectivity issues if pings were not successful. Close a configuration window Note: Pings to the GigabitEthernet LAN interfaces on other routers will not be successful. A routing protocol needs to be in place for other devices to be aware of those subnets. The GigabitEthernet interfaces also need to be in an up/up state before a routing protocol can add the subnets to the routing table. The focus of this lab is on VLSM and configuring the interfaces. Reflection Question Can you think of a shortcut for calculating the network addresses of consecutive /30 subnets? Type your answers here. Router Interface Summary Table Router Model Ethernet Interface #1 Ethernet Interface #2 Serial Interface #1 Serial Interface #2 1800 Fast Ethernet 0/0 (F0/0) Fast Ethernet 0/1 (F0/1) Serial 0/0/0 (S0/0/0) Serial 0/0/1 (S0/0/1) 1900 Gigabit Ethernet 0/0 (G0/0) Gigabit Ethernet 0/1 (G0/1) Serial 0/0/0 (S0/0/0) Serial 0/0/1 (S0/0/1) 2801 Fast Ethernet 0/0 (F0/0) Fast Ethernet 0/1 (F0/1) Serial 0/1/0 (S0/1/0) Serial 0/1/1 (S0/1/1) 2811 Fast Ethernet 0/0 (F0/0) Fast Ethernet 0/1 (F0/1) Serial 0/0/0 (S0/0/0) Serial 0/0/1 (S0/0/1) 2900 Gigabit Ethernet 0/0 (G0/0) Gigabit Ethernet 0/1 (G0/1) Serial 0/0/0 (S0/0/0) Serial 0/0/1 (S0/0/1) 4221 Gigabit Ethernet 0/0/0 (G0/0/0) Gigabit Ethernet 0/0/1 (G0/0/1) Serial 0/1/0 (S0/1/0) Serial 0/1/1 (S0/1/1) 4300 Gigabit Ethernet 0/0/0 (G0/0/0) Gigabit Ethernet 0/0/1 (G0/0/1) Serial 0/1/0 (S0/1/0) Serial 0/1/1 (S0/1/1) Note : To find out how the router is configured, look at the interfaces to identify the type of router and how many interfaces the router has. There is no way to effectively list all the combinations of configurations for each router class. This table includes identifiers for the possible combinations of Ethernet and Serial interfaces in the device. The table does not include any other type of interface, even though a specific router may contain one. An example of this might be an ISDN BRI interface. The string in parenthesis is the legal abbreviation that can be used in Cisco IOS commands to represent the interface.End of document