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 broadcast …

Feb 25, 2023 · An IP helper-address, also known as a DHCP relay agent, this is a feature that forwards DHCP broadcast packets to a specific DHCP server on a different network segment.

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 forwarded to the …

May 23, 2017 · Using the ip helper-address command sets up a DHCP relay. DHCP only works on the LAN to which it is connected because it uses broadcast, which cannot cross a router.

Mar 13, 2025 · How Does IP Helper-Address Work? The IP helper-address command is used on routers or Layer 3 devices to configure DHCP relay functionality. Here's how it works: When a DHCP client …

Nov 13, 2025 · The IP helper address is a crucial network configuration that enables a router to forward broadcast traffic, such as DHCP requests, to a specific server located on a different subnet, …

Apr 24, 2018 · Command IP Helper-Address Use This command is used to enable the router to forward BOOTP broadcast (and other)packets to a specific host.

Sep 4, 2022 · This is simple solution to reduce a bottle neck of router which is issuing ip address to clients using IP DHCP pool "Vlanxx". IP Helper-Address command can point to enterprize DHCP …

To add the IP address of a DHCP server for a specified VLAN on a routing switch, enter the ip helper-address command at the VLAN configuration level as in the following example: To remove the DHCP …

In Cisco Packet Tracer DHCP Relay Agent Configuration, you will learn how to configure DHCP Server for multiple networks.