When might you need a dhcp relay agent

1. Why do we need a DHCP relay agent?
2. When should I use DHCP relay?
3. In which situation relay agent is required for obtaining IP address from DHCP server?
4. Where does DHCP relay agent should be installed?

Why do we need a DHCP relay agent?

The function of the DHCP relay agent is to forward the DHCP messages to other subnets so that the DHCP server does not have to be on the same subnet as the DHCP clients. The DHCP relay agent transfers DHCP messages from the DHCP clients located on a subnet without a DHCP server, to other subnets.

When should I use DHCP relay?

A DHCP relay simply forwards the DHCP requests to the DHCP server. It is needed when the DHCP server is not in the same subnet as the hosts needing a DHCP address.

In which situation relay agent is required for obtaining IP address from DHCP server?

A DHCP relay agent sits between a DHCP server and DHCP clients and allows the DHCP clients to obtain IP addresses from the DHCP server that is not configured on the same LAN. In this tutorial, we will understand how configure Cisco routers as DHCP relay agents trough a packet tracer example.

Where does DHCP relay agent should be installed?

You install the DHCP Relay Agent, like other Windows NT services, from the Services pages of the Control Panel Network dialog. To install it, right-click the Network Neighborhood icon on your desktop to display the context-sensitive menu and choose Properties to display the Network dialog.