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A DHCP relay is a computer that forwards DHCP data between computers that request
IP addresses and the DHCP server that assigns the IP addresses. If the DHCP Relay option is
enabled, DHCP requests from local PCs will be forwarded to the DHCP server that runs on
WAN side. For this function working properly, you must run it on router mode only; disable the
DHCP server on the LAN port and make sure the routing table has the correct routing entry.
4.4 The Wireless LAN Screen
The wireless LAN Screen includes some basic configurations. The complexity of wireless
LAN depends on the network environment. That is, wireless LANs are simple while two
computers with wireless LAN cards communicate in a peer-to-peer network, though they still
need more complicated setting as there are a number of computers with wireless LAN card
communicating through access points which bridge network traffic to the wired LAN.
Proprietary & Confidential
Revision: V1.0
(for DSL-2120W only)
Page 30 of 86
Apr. 23, 2008
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