DHCP Relay Agent
The DHCP server functions as either a DHCP server or a BOOTP/DHCP Relay
Agent. If the server functions as a DHCP server, it processes DHCPpackets on the
local system. If the DHCP server functions as a BOOTP/DHCP RelayAgent, it
relays DHCP and BOOTP packets on the local system but does not process them.
The Relay Agent forwards the packets to one or more different server IPaddresses.
The BOOTP/DHCP Relay Agent handles both BOOTPand DHCP client requests
for IP addresses and forwards those requests to remote destination addresses.
The BOOTP/DHCP Relay Agent runs on the local subnet.The Relay Agent
intercepts client BOOTP or DHCP packet broadcasts. It then forwards them on to
the non-local DHCP server, which sends the response back to the RelayAgent. The
Relay Agent then forwards the response to the client on the local subnet. It uses
the port 67, the same port that the BOOTP or DHCP server uses.
Specify during configuration the IP addresses that the Relay Agent uses for
forwarding.
When the Relay Agent forwards a packet, it inserts its address into the packet so
the DHCP server can return a response to that Relay Agent.
For instructions on configuring a BOOTP/DHCP Relay Agent, see the online help in
Operations Navigator.
Adding Network Stations
Toadd Network Stations to your DHCP environment, run the Network Station Setup
Assistant. For more information on the Network Station Setup Assistant, see

Network Station Manager Installation and Use, SC41–0664–00

.
420 OS/400 TCP/IPConfiguration and Reference V4R4