3Com REMOTE ACCESS SYSTEM 1500, Management Manual

Page: 248 / 300

246 C
HAPTER
15: C
ONFIGURING
D
YNAMIC
H
OST
C
ONFIGURATION
P
ROTOCOL
Acting as a DHCP server , the RAS 1500 receives and processes the
requests for IP information and provides the IP information directly back
to the client.
Acting as a DHCP proxy , the RAS 1500 initiates a DHCP request to a
DHCP server in behalf of the DHCP dial-in clients. The DHCP server
receives and processes the request and sends the IP information back to
the dial-in server via the RAS 1500.
Acting as a DHCP relay , the RAS 1500 passes on a request for IP
information from a local user to a DHCP server.
Scenario 1 In this scenario, when a local user requests IP information, the RAS 1500,
acting as a DHCP server, provides it.
Figure 14 RAS 1500 as a DHCP server (local users)
R A S 1 5 0 0
L A N
local LAN users