Siemens E-110-I - Manual (Page 47)

Chapter 4: Advanced Configuration
DHCP Configuration
You can configure your network and ADSL Router to use the Dynamic Host Configuration Protocol (DHCP).
The device can be configured as a DHCP server, DHCP relay agent, or, in some cases, a DHCP client.
• 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. Both DHCP server and NAT are enabled in the default configuration.
• DHCP relay agent - If your ISP performs the DCHP server function for your network, then you can
configure the device as a DHCP relay agent. When the ADSL Router receives a request for Internet
access from a computer on your network, it contacts your ISP for the necessary IP information, and
then relays the assigned information back to the computer.
• DCHP client - If you have another PC or device on your network that is already performing the DHCP
server function, then you can configure the LAN port on the ADSL Router to be a DHCP client of that
server.
Configuring DHCP Server
Part 1. Creating IP address pools
1. Select Lan > DHCP Server. The DHCP Server Configuration page displays.
Each pool you create displays in a row on the table on this page. You can create up to eight pools. In
this example, one pool has been created for the LAN interface. Additional pools may be needed when
the device is configured with multiple LAN interfaces.
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