RuggedCom RuggedRouter RX1100 - Manual (Page 254)

28. DHCP Relay
Revision 1.14.3 254 RX1000/RX1100™
28. DHCP Relay
28.1. Introduction
This chapter familiarizes the user with the use and configuration of RuggedRouter's DHCP Relay
feature.
28.1.1. DHCP Relay Fundamentals
RuggedRouter can be configured to act as a DHCP Relay Agent. A DHCP Relay Agent forwards
DHCP and BOOTP requests from clients on one layer 2 network to one or more configured DHCP
servers on other networks. This allows one to implement some measure of isolation between DHCP
clients and servers.
The DHCP Relay Agent is configured to listen for DHCP and BOOTP requests on particular Ethernet
and VLAN network interfaces, and to relay to a list of one or more DHCP servers. When a request is
received from client, it forwards the request to each of the configured DHCP servers. When a reply is
received from a server, it forwards the reply back to the originating client.
Note
The current release of DHCP Relay Agent on RuggedRouter only supports operation on Ethernet
interfaces. It also does not support the "Circuit ID" and "Remote ID" Information sub-options.
Note
While DHCP Relay and DHCP Server may both be configured to run concurrently, they may not
be configured to run on the same network interface.
28.2. Configuring DHCP Relay
The DHCP Relay is disabled by default and may be enabled via the Bootup and Shutdown menu
under the System folder.
Figure 28.1. DHCP Relay Configuration
This menu allows you to configure DHCP Relay Agent.