TRENDnet TDM-E400 - Manual (Page 94)

TDM-E400 / TDM-C400 ADSL2+ Ethernet Modem Router User’s Manual
94
Ethernet Modem Router DHCP modes
The device can be configured as a DHCP server, relay agent or
client.
f If you configure the device as a DHCP server, it will
maintain the pool of addresses and distribute them to your
LAN computers. If the pool of addresses includes private IP
addresses, you must also configure the Network Address
Translation service, so that the private addresses can be
translated to your public IP address on the Internet.
f If your ISP performs the DCHP server function for your
network, then you can configure the device as a DHCP
relay agent. When a computer logs onto the network, the
Ethernet Modem Router contacts the ISP for the necessary
IP information, which it relays back to the computer.
f If you have another PC or device on your network already
performing the DHCP server function, then you can
configure the device’s LAN interface to be a DHCP client of
that server (as are your PCs). This configuration is
described in Chapter 4.
Note
You can input settings for both DHCP server and DHCP relay
mode, and then activate either mode at any time. Deactivated
settings are retained for your future use.