One useful and important feature in Cisco networking devices (primarily Layer 3 devices) is the IP Helper Address. The “ ip helper-address ” Cisco command provides a solution to forward …

Oct 15, 2012 · The Cisco IOS DHCP relay agent will be enabled on an interface only when the ip helper-address command is configured. This command enables the DHCP broadcast to be …

Nov 29, 2025 · This tutorial explains how to use the ip helper-address command to configure DHCP relay agents on Cisco routers.

Feb 25, 2023 · Let’s explore the configuration of IP Helper-Address through a hands-on scenario using Packet Tracer Lab. Follow along as we demonstrate step-by-step instructions for setting …

Defines the address of a remote DHCP server or DHCP relay agent. Up to eight addresses can be defined. The DHCP agent forwards DHCP client requests to all defined servers. This …

ip helper-address - This command allows us to configure a DHCP Relay Agent for a Layer 3 interface on a Cisco IOS device.

For relay agent config, the key command is “ ip-helper address ” command. On different interfaces of the router, in each subnet that we use this DHCP Server, we will use this command with the …

Sep 26, 2025 · Use the ip helper-address Global Configuration mode command to enable the forwarding of UDP Broadcast packets received on an interface to a specific (helper) address.

To configure an IP helper address you’ll use the ip helper-address a.b.c.d in interface configuration mode on the interface that is connected to the broadcast domain in which you …

By itself, this command forwards packets for the BOOTP (DHCP), DNS, TFTP, TACACS, TIME, and NetBIOS name and datagram services. The ip forward-protocol command can be used to …