DHCP Relay & Multi-VLAN Network Lab | Cisco Packet Tracer

DHCP Relay & Multi-VLAN Network Lab | Cisco Packet Tracer

As part of my continuous hands-on learning in network administration, I built a network topology using Cisco Packet Tracer to practice VLAN segmentation and centralized DHCP services.

In this design, all PCs located in VLAN 1, VLAN 2, and VLAN 3 automatically obtain their IP addresses from a central DHCP server placed in VLAN 4

? Key Concepts Implemented

✔ VLAN segmentation to separate network traffic

✔ Deployment of a centralized DHCP server

✔ Configuration of a DHCP Relay Agent on the router

✔ Inter-VLAN communication through router configuration

✔ Assigning switch access ports to different VLANs

To allow devices in multiple VLANs to receive IP addresses from the DHCP server, the router was configured as a DHCP Relay Agent using the `ip helper-address` command.

This configuration forwards DHCP broadcast requests from client VLANs to the DHCP server located in another VLAN.

? Technologies Used

• Cisco Packet Tracer

• VLAN configuration

• DHCP server setup

• DHCP relay configuration

• Router and switch configuration

? This lab improved my understanding of how enterprise networks implement centralized IP address management across multiple VLANs, a common approach used in real-world network infrastructures.