7.4.2 Lab - Implement DHCPv4

Name: Type your name here. Lab - Implement DHCPv4 Topology Addressing Table Device Interface IP Address Subnet Mask Default Gateway R1 G0/0/0 10.0.0.1 255.255.255.252 N/A R1 G0/0/1 N/A N/A N/A R1 G0/0/1.100 blank blank N/A R1 G0/0/1.200 blank blank N/A R1 G0/0/1.1000 N/A N/A N/A R2 G0/0/0 10.0.0.2 255.255.255.252 N/A R2 G0/0/1 blank blank N/A S1 VLAN 200 blank blank blank S2 VLAN 1 blank blank blank PC-A NIC DHCP DHCP DHCP PC-B NIC DHCP DHCP DHCP VLAN Table VLAN Name Interface Assigned 1 N/A S2: F0/18 100 Clients S1: F0/6 200 Management S1: VLAN 200 999 Parking_Lot S1: F0/1-4, F0/7-24, G0/1-2 1000 Native N/A Objectives Part 1: Build the Network and Configure Basic Device Settings  2017 - 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public Page 1 of 6 www.netacad.com

Lab - Implement DHCPv4 Part 2: Configure and verify two DHCPv4 Servers on R1 Part 3: Configure and verify a DHCP Relay on R2 Background / Scenario The Dynamic Host Configuration Protocol (DHCP) is a network protocol that lets network administrators manage and automate the assignment of IP addresses. Without DHCP for IPv4, the administrator must manually assign and configure IP addresses, preferred DNS servers, and default gateways. As the network grows in size, this becomes an administrative problem when devices are moved from one internal network to another. In this scenario, the company has grown in size, and the network administrators can no longer assign IP addresses to devices manually. Your job is to configure the R1 router to assign IPv4 addresses on two different subnets. 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 : Ensure that the routers and switches 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)  2 PCs (Windows with a terminal emulation program, such as Tera Term)  Console cables to configure the Cisco IOS devices via the console ports  Ethernet cables as shown in the topology Instructions Part 1: Build the Network and Configure Basic Device Settings In Part 1, you will set up the network topology and configure basic settings on the PC hosts and switches. Step 1: Establish an addressing scheme Subnet the network 192.168.1.0/24 to meet the following requirements: a. One subnet, “Subnet A”, supporting 58 hosts (the client VLAN at R1). Subnet A: Type your answer(s) here. Type your answers here. Record the first IP address in the Addressing Table for R1 G0/0/1.100. b. One subnet, “Subnet B”, supporting 28 hosts (the management VLAN at R1). Subnet B: Type your answer(s) here. Type your answers here. Record the first IP address in the Addressing Table for R1 G0/0/1.200. Record the second IP address in the Address Table for S1 VLAN 200 and enter the associated default gateway. Type your answer(s) here.  2017 - 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public Page 2 of 6 www.netacad.com

Lab - Implement DHCPv4 c. Assign class as the privileged EXEC encrypted password. d. Assign cisco as the console password and enable login. e. Assign cisco as the VTY password and enable login. f. Encrypt the plaintext passwords. g. Create a banner that warns anyone accessing the device that unauthorized access is prohibited. h. Save the running configuration to the startup configuration file. i. Set the clock on the switch to today’s time and date. Note : Use the question mark ( ? ) to help with the correct sequence of parameters needed to execute this command. j. Copy the running configuration to the startup configuration. Step 7: Create VLANs on S1. Note : S2 is only configured with basic settings. a. Create and name the required VLANs on switch 1 from the table above. b. Configure and activate the management interface on S1 (VLAN 200) using the second IP address from the subnet calculated earlier. Additionally, set the default gateway on S1. c. Configure and activate the management interface on S2 (VLAN 1) using the second IP address from the subnet calculated earlier. Additionally, set the default gateway on S2 d. Assign all unused ports on S1 to the Parking_Lot VLAN, configure them for static access mode, and administratively deactivate them. On S2, administratively deactivate all the unused ports. Note : The interface range command is helpful to accomplish this task with as few commands as necessary. Close configuration window Open configuration window Close configuration window Step 8: Assign VLANs to the correct switch interfaces. a. Assign used ports to the appropriate VLAN (specified in the VLAN table above) and configure them for static access mode. Open configuration window b. Verify that the VLANs are assigned to the correct interfaces. Question: Why is interface F0/5 listed under VLAN 1? Type your answer(s) here. Type your answers here. Step 9: Manually configure S1’s interface F0/5 as an 802.1Q trunk. a. Change the switchport mode on the interface to force trunking. b. As a part of the trunk configuration, set the native VLAN to 1000. c. As another part of trunk configuration, specify that VLANs 100, 200, and 1000 are allowed to cross the trunk. d. Save the running configuration to the startup configuration file. e. Verify trunking status. Take a screenshot of your active window (press Alt-PrtScn or similar) and insert it here.  2017 - 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public Page 4 of 6 www.netacad.com

Lab - Implement DHCPv4 Question: At this point, what IP address would the PC’s have if they were connected to the network using DHCP? Type your answer(s) here. Type your answers here. Close configuration window Part 2: Configure and verify two DHCPv4 Servers on R1 In Part 2, you will configure and verify a DHCPv4 Server on R1. The DHCPv4 server will service two subnets, Subnet A and Subnet C. Step 1: Configure R1 with DHCPv4 pools for the two supported subnets. Only the DHCP Pool for subnet A is given below a. Exclude the first five useable addresses from each address pool. Open configuration window b. Create the DHCP pool (Use a unique name for each pool). c. Specify the network that this DHCP server is supporting. d. Configure the domain name as ccna-lab.com e. Configure the appropriate default gateway for each DHCP pool. f. Configure the lease time for 2 days 12 hours and 30 minutes. g. Next, configure the second DHCPv4 Pool using the pool name R2_Client_LAN and the calculated network, default-router and use the same domain name and lease time from the previous DHCP pool. Step 2: Save your configuration Save the running configuration to the startup configuration file. Close configuration window Step 3: Verify the DHCPv4 Server configuration a. Issue the command show ip dhcp pool to examine the pool details. b. Issue the command show ip dhcp bindings to examine established DHCP address assignments. c. Issue the command show ip dhcp server statistics to examine DHCP messages. Step 4: Attempt to acquire an IP address from DHCP on PC-A a. Open a command prompt on PC-A and issue the command ipconfig /renew . b. Once the renewal process is complete, issue the command ipconfig to view the new IP information. c. Test connectivity by pinging R1’s G0/0/1 interface IP address. Take a screenshot of your active window (press Alt-PrtScn or similar) and insert it here. Part 3: Configure and verify a DHCP Relay on R2 In Part 3, you will configure R2 to relay DHCP requests from the local area network on interface G0/0/1 to the DHCP server (R1).  2017 - 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public Page 5 of 6 www.netacad.com