SMC Networks SMC7204BRA manual Configuring Dynamic Host Configuration Protocol, Why use DHCP?

Configuring Dynamic Host Configuration Protocol

The DHCP server draws from a defined pool of IP addresses and leases them for a specified amount of time to your computers when they request an Internet session. It monitors, collects, and redistributes the addresses as needed.

On a DHCP-enabled network, the IP information is assigned dynamically rather than statically. A DHCP client can

be assigned a different address from the pool each time it reconnects to the network.

Why use DHCP?

DHCP allows you to manage and distribute IP addresses throughout your network from a central computer. Without DHCP, you would have to configure each computer separately with IP addresses and related information. DHCP is commonly used with large networks and those that are frequently expanded

or otherwise updated.

ADSL Barricade DHCP modes

The device can be configured as a DHCP server, relay agent or client.

•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.

•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 Barricade 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.

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