Lab Objective:
The objective of this lab exercise is for you to learn and understand how Cisco IOS routers forward DHCP requests to remote DHCP servers.
Lab Purpose:
Configuring Cisco IOS routers to forward DHCP requests to remote DHCP servers is a fundamental skill. In some cases, DHCP servers are located in a central location (such as the Headquarters) and DHCP requests from local clients need to be forwarded on to these servers. By default, Cisco IOS routers do not forward Broadcast traffic. Therefore, since DHCP requests are broadcast packets, configuration is required on the Cisco IOS devices to forward these Broadcasts to the DHCP servers. As a Cisco engineer, as well as in the Cisco CCNA exam, you will be expected to know how to configure Cisco IOS routers to forward DHCP requests to remote DHCP servers.
Certification Level:
This lab is suitable for CCNA certification exam preparation
Lab Difficulty:
This lab has a difficulty rating of 7/10
Readiness Assessment:
When you are ready for your certification exam, you should complete this lab in no more than 10 minutes
| IMPORTANT NOTE:
In order to test DHCP functionality, you will need a workstation DHCP client configured to receive IP addressing information via DHCP. If you do not have a DHCP client, feel free to substitute it with another Cisco IOS router configured as a DHCP client as illustrated in the previous lab. |
Lab Topology:
Please use the following topology to complete this lab exercise:
Task 1:
Configure the hostnames on routers R1, R2 and Sw1 as illustrated in the topology.
Task 2:
Configure R1 to provide clocking information for R2 at a speed of 256Kbps. Configure the IP addresses on R1 and R2 S0/0 interface as illustrated in the topology.
Task 3:
Configure VLAN 3000 named DHCP_VLAN on Sw1. Assign the FastEthernet0/2 and FastEthernet0/3 interfaces on Sw1 to this VLAN. Ensure that the ports immediately transition to the Spanning Tree Forwarding state.
Task 4:
Configure R2 as a Cisco IOS DHCP server with the following settings:
DHCP Pool Name: REMOTE-DHCP-POOL
DHCP Network: 10.1.1.0/24
DNS Server: 192.168.1.254
WINS Server: 172.30.1.254
Default Gateway: 10.1.1.1
DNS Domain: howtonetwork.net
DHCP Lease Time: 8 days
Task 5:
Configure R1 to forward DHCP requests from DHCP clients connected to F0/0 to R2 (the IOS DHCP server).
Task 6:
Verify your DHCP configuration on the connected workstation (or other DHCP client) and also verify that your Cisco IOS DHCP server is showing a leased DHCP address.